Lots of of 1000’s of species of flowers develop all world wide, providing up their range, magnificence, and attract for the appreciation of botanists, florists, gardeners, and greenthumbs all over the place. That will help you uncover extra flowers, we’re taking a special method and rounding up a few of the most stunning and thrilling flowers alphabetically. Proceed studying to study 50 flowers that begin with the letter O, together with their photos, descriptions, native ranges, thrilling details, symbolic meanings within the language of flowers, and extra.

50 Lovely Flowers That Begin With the Letter O:
1. Oakleaf Hydrangea

The oakleaf hydrangea is a woody, deciduous shrub that produces lush, inexperienced, lobed leaves that resemble the foliage of an oak tree.
Not like different hydrangeas from the Hydrangeaceae (hydrangea) plant household, which have ball-shaped flower clusters, the oakleaf hydrangea produces cone-shaped clusters of small, snowy-white flowers. The flowers begin out white, deepen to pink by way of the summer season, and as soon as dried in fall they flip rusty brown.
Within the language of flowers, hydrangea symbolizes a boaster and heartlessness or represents the phrase, “You might be chilly.”
Scientific Title: | Hydrangea quercifolia |
Native Vary: | Southeastern United States |
Flowering Season: | April by way of July |
2. Obedient Plant

A member of the Lamiaceae (mint) plant household, the obedient plant produces erect clumps of stems with squared sides and lanceolate leaves.
The vegetation develop to be about 5 toes in peak, and on the ends of the stems, they produce lengthy, cone-shaped racemes of pinkish-purple, tubular flowers which have a form much like snapdragons.
Some cultivars produce pure white, pink, and lavender flowers. Different widespread names for the obedient plant embody obedience, fall obedient plant, Virginia lions-heart, and false dragonhead.
Scientific Title: | Physostegia virginiana |
Native Vary: | Most of Canada, northern Mexico, and the jap and central United States |
Flowering Season: | August by way of November |
3. Ochagavia

The Ochagavia plant genus incorporates 4 accepted species of flowering vegetation belonging to the Bromiliaceae (bromeliad) plant household.
These flowers that begin with the letter O produce thick rosettes of leathery, strap-like foliage and a central spike-like flowerhead in shades of sunshine pink and crimson. The flowerhead provides method to a spiky, brown-colored fruit that resembles its cousin from one other genus, the pineapple.
Scientific Title: | Ochagavia spp. |
Native Vary: | Southern and Central Chile |
Flowering Season: | Late summer season by way of early fall |
4. October Daphne

A member of the Crassulaceae (stonecrop) plant household, October daphne (additionally referred to as October stonecrop) is a favourite for every kind of gardens due to its enticing, succulent-like foliage that begins out in a shade of silvery bluish-green and warms all through the season, creating pinkish-red margins.
October daphne can also be beautiful when it blooms in early autumn. The vegetation produce plentiful, globe-shaped clusters of fuzzy, pink flowers that entice scores of butterflies.
Scientific Title: | Hylotelephium sieboldii (syn. Sedum sieboldii) |
Native Vary: | Japan and south-central China |
Flowering Season: | Early to mid-fall |
5. Oenothera biennis (Frequent Night Primrose)

A member of the Onagraceae (night primrose) plant household, the widespread night primrose has a two-year lifespan and grows to be simply over 5 toes in peak. The vegetation produce terminal rosettes of yellow, four-petaled flowers within the first yr and free spirals of flowers throughout the second blooming season. It’s this species of primrose from which night primrose oil is produced.
Scientific Title: | Oenothera biennis |
Native Vary: | Southern Canada, many of the United States, and northern Mexico |
Flowering Season: | Late spring to late summer season |
6. Oenothera speciosa (Pink Night Primrose)

One other night primrose, the pink night primrose, is a perennial wildflower that has a extra diminutive kind, reaching nearly two toes in peak. It produces terminal rosettes of cup-shaped flowers in a fragile shade of rosy pink that fades to white and vibrant yellow at their facilities.
These flowers that begin with the letter O fade to pure white as they mature. Within the language of flowers, night primrose symbolizes inconstancy, sympathy, and silent love.
Scientific Title: | Oenothera speciosa |
Native Vary: | South-central United States and Northern Mexico |
Flowering Season: | February by way of October |
7. Ohio Goldenrod

A member of the Asteraceae (daisy, composite, aster, and sunflower) plant household, the Ohio goldenrod is an herbaceous perennial that grows in erect clumps as much as about three toes in peak.
Ohio goldenrods produce lengthy, slender leaves and flat-topped, terminal panicles of small, densely organized golden-yellow flowers. These flowers are a vital meals supply for native bees. Within the language of flowers, goldenrod symbolizes precaution and eloquence.
Scientific Title: | Solidago ohioensis |
Native Vary: | The Nice Lakes Area |
Flowering Season: | September and October |
8. Okra

Abelmoschus esculentus is a species of flowering plant that’s most popularly generally known as okra, an ingredient generally utilized in dishes of the southern United States and areas world wide.
Okra vegetation usually attain about 5 toes tall and produce hibiscus-like yellow flowers with purplish facilities. A number of cultivars have crimson, orange-red, and pink flowers with white facilities. Okra is mostly planted for its edible fruit (seed pods).
Scientific Title: | Abelmoschus esculentus |
Native Vary: | Myanmar, India, and Bangladesh |
Flowering Season: | All through the rising season till frost |
9. Previous Man’s Beard

Clematis vitalba (generally referred to as previous man’s beard or traveler’s pleasure) is a flowering, deciduous shrub that belongs to the Ranunculaceae (buttercup) plant household.
These flowers that begin with the letter O function a distinguished tuft of greenish-white flowers surrounded by a corona of white sepals which might be usually fluffy or feathery in texture. Consequently, the flowers appear to be they’ve white beards. In sure components of america, this species is taken into account invasive.
Clematis symbolizes artifice, psychological magnificence, and perseverance within the language of flowers.
Scientific Title: | Clematis vitalba |
Native Vary: | The Mediterranean area |
Flowering Season: | July by way of September |
10. Previous Man’s Bones

A member of the Crassulaceae plant household, Sedum divergens is a species of flowering plant with bluish-green, succulent leaf segments which might be produced in trailing rosettes and clusters of bright-yellow, star-shaped flowers.
The widespread identify “previous man’s bones” refers back to the association of the plant’s leaf segments, which resemble ball joints. Different widespread names for Sedum divergens embody Pacific stonecrop, Cascade stonecrop, and spreading stonecrop.
Scientific Title: | Sedum divergens |
Native Vary: | North American Pacific Coast from Alaska to California |
Flowering Season: | Summer season |
11. Previous Man’s Whiskers

A member of the Rosaceae (rose) plant household, previous man’s whiskers is an herbaceous, perennial, flowering plant. The vegetation seem in clumps of fern-like, bluish-green foliage and produce reddish-purple flowers that rise above the foliage.
These flowers that begin with the letter O give method to alluring, silvery-white, feathery plumes of seeds that blow within the wind like whiskers. Extra widespread names embody grandfather’s beard, prairie smoke, torchflower, long-plumed purple avens, three sisters, and lion’s beard.
Scientific Title: | Geum triflorum |
Native Vary: | Canada and the western and northern United States |
Flowering Season: | Could and June |
12. Oleander

Nerium oleander (generally referred to easily as oleander or nerium) is an evergreen shrub belonging to the Apocynacea (dogbane) plant household. The vegetation have brief, blade-like leaves and produce clusters of single or double, pinwheel-shaped flowers in shades of white, cream, yellow, crimson, pink, or purple.
All components of oleander vegetation are poisonous. Nonetheless, they style bitter to animals and folks, making instances of poisoning uncommon. The sap can even irritate pores and skin, so sporting gloves when working with oleander vegetation is greatest.
Within the language of flowers, oleander means beware, and “Divine love overcomes all difficulties.”
Scientific Title: | Nerium oleander |
Native Vary: | The Mediterranean and south-central Asia |
Flowering Season: | Early summer season to mid-fall |
13. Olearia spp. (Daisy Bush)

100 and fifty-seven species of flowering shrubs, generally referred to as daisy bushes, belong to the Olearia genus throughout the Asteraceae plant household. Crops of this species develop to varied sizes and produce particular person flowers or flowers in clusters.
The flower heads will be single or double, consisting of daisy-like ray and disc florets with white, purple, or yellow ray florets and yellow or purplish disc florets on the facilities.
A number of cultivars are planted for decorative functions and have earned the Royal Horticultural Society’s Award of Backyard Advantage.
Scientific Title: | Olearia spp. |
Native Vary: | New Guinea, Australia, and New Zealand |
Flowering Season: | Late spring to early summer season |
14. One-Flowered Wintergreen

A member of the Ericaceae (heath or heather) plant household, Moneses uniflora is the one species of its genus. It’s an herbaceous perennial that produces a small rosette of ovate, barely toothed leaves.
Every plant produces a single, aromatic white flower. The flowers are nodding with distinguished stamens and 5 back-turned petals, which appear as if a studying lamp.
With a large native distribution, it has many widespread names, together with one-flowered wintergreen, single delight, wooden nymph, frog’s studying lamp, St. Olaf’s candlestick, Star of Bethlehem, or shy maiden.
Scientific Title: | Moneses uniflora |
Native Vary: | Temperate Northern Hemisphere |
Flowering Season: | Could by way of August |
15. Onion

Allium cepa is the scientific identify of a root vegetable that calls Turkmenistan house however grows all world wide and finds itself in dishes from all world wide, too.
This vegetable is the onion, and it belongs to the Amaryllidaceae (amaryllis) plant household. Whereas onions are nearly at all times grown for his or her edible, fragrant roots, additionally they produce enticing flower clusters. The clusters are spherical and crammed with fuzzy flowers which might be both white or a fragile shade of sunshine purple.
Scientific Title: | Allium cepa |
Native Vary: | Turkmenistan |
Flowering Season: | July and August |
16. Onosma (Golden Drops)

A member of the Boraginaceae (borage) plant household, the Onosma genus incorporates 227 accepted species of flowering vegetation, generally referred to as golden drops.
Whereas their pendulous, bell-shaped flowers are sometimes golden yellow in coloration, they’re additionally generally pink, white, or purple. The flowers seem in clusters and emerge from buds on stems and foliage nearly solely coated with white hairs.
Scientific Title: | Onosma spp. |
Native Vary: | Northern Africa and Eurasia |
Flowering Season: | Could by way of August |
17. Opuntia (Prickly Pear)

A member of the Cactaceae (cactus) plant household, the Opuntia genus incorporates 144 species of flowering cacti, generally referred to as prickly pears. Prickly pears principally develop into shrub-like formations of spiny, pear-shaped cactus pads. Nonetheless, a number of species develop into tree-like formations.
These flowers that begin with the letter O are cup-shaped and seem in clusters in shades of pink and yellow. Prickly pear cacti produce edible fruits, in style meals sources all through the Americas. Their immature pads are additionally edible and generally utilized in conventional dishes in areas the place they develop naturally.
Scientific Title: | Opuntia spp. |
Native Vary: | The Americas |
Flowering Season: | Spring and summer season (relying on species) |
18. Orange Ball Tree

A member of the Scrophulariaceae (figwort) plant household, Buddleja globosa (generally referred to as orange ball tree) is a big, flowering shrub. Older progress on the shrub has gray bark, whereas youthful shoots and branches are inexperienced and coated with effective hairs. They produce elliptical, prominently veined foliage and ball-shaped terminal clusters of bright-orange flowers.
The flowers are densely clustered, giving the balls a honeycomb-like look that pairs completely with their candy, honey-like scent.
Scientific Title: | Buddleja globosa |
Native Vary: | Chile and southern Argentina |
Flowering Season: | Late spring to early summer season |
19. Orange Blossom

A member of the Rutaceae (rue or citrus) plant household, Citrus x aurantium is a hybrid of Citrus maxima (pomelo) and citrus reticulata (mandarin). This hybrid tree produces flowers generally referred to as orange blossoms and fruits generally known as Valencia oranges, navel oranges, and blood oranges.
The state flower of Florida, orange blossoms are prized for a number of makes use of, together with their candy perfume, teas, and infusions made with their petals, and their half in making orange blossom honey.
Scientific Title: | Citrus x aurantium (syn. Citrus x sinensis) |
Native Vary: | Human-cultivated hybrid |
Flowering Season: | Late Could by way of early June |
20. Orange Coneflower

Rudbeckia fulgida (generally referred to as orange coneflower, orange rudbeckia, or perennial black-eyed Susan) belongs to the Asteraceae plant household. The vegetation develop in clumps as much as about 4 toes in peak.
They’ve pointed, ovate foliage that’s coated in hairs and produce showy flowerheads that encompass bright-yellow ray florets round distinguished, darkish brown, almost-black disc florets. When in bloom, the flowers seem in profusion and entice varied native birds.
Scientific Title: | Rudbeckia fulgida |
Native Vary: | Jap North America |
Flowering Season: | July by way of October |
21. Orange Daylily

Hemerocallis fulva is a species of herbaceous perennial that grows and spreads by way of tuberous root methods. Essentially the most broadly used widespread identify for the plant is the orange daylily, which refers back to the plant’s orange-colored flowers that final for under at some point along with their superficial resemblance to flowers of true lilies. The orange daylily, nevertheless, will not be a lily, because it belongs to the Asphodelaceae plant household.
Scientific Title: | Hemerocallis fulva |
Native Vary: | Jap Asia |
Flowering Season: | Mid to late summer season |
22. Orange Jessamine

A member of the Rutaceae plant household, Murraya paniculata will not be a citrus plant, however its white and cream-colored flowers resemble orange blossoms in look and perfume.
Frequent names for this evergreen shrub or tree embody orange jessamine, orange jasmine, mock orange, and china field. These vegetation are generally grown as decorative vegetation individually and in teams to kind privateness screens or hedges.
Scientific Title: | Murraya paniculata |
Native Vary: | Australasia |
Flowering Season: | 12 months-round in heat climates |
23. Orange Milkwort

A member of the Polygalaceae (milkwort) plant household, Polygala lutea is usually referred to as orange milkwort. Orange milkwort is an herbaceous annual or perennial plant that may develop to about 20 inches in peak.
These flowers that begin with the letter O produce pineapple-like flowerheads in vibrant shades of orange that fade to yellow when dried. The orange coloration distinguishes these from different milkworts, as most milkworts have pink, white, or yellow flowerheads.
Scientific Title: | Polygala lutea |
Native Vary: | Atlantic and Gulf Coasts of america |
Flowering Season: | February by way of November |
24. Orange Star Flower

Ornithogalum dubium is a bulbous perennial belonging to the Asparagaceae (asparagus) plant household.
The vegetation are small, rising to about one foot in peak and 6 inches in diameter. They produce rosettes of paddle-shaped leaves and tightly organized, spherical clusters of orange, star-shaped flowers with darkish facilities.
Frequent names for the vegetation embody orange star flower, solar star, and star of Bethlehem.
Scientific Title: | Ornithogalum dubium |
Native Vary: | South Africa |
Flowering Season: | Late winter to spring |
25. Orchid

The orchid plant household (Orchidaceae) presently incorporates 705 accepted genera made up of about 28,000 totally different species, making it the second-largest flowering plant household.
Orchids usually have small seeds, bilateral symmetry, back-bent (resupinate) petals, fused stamens, and modified carpels.
Within the language of flowers, totally different orchids have totally different symbolic meanings, together with a belle (common), trade (bee orchid), gaiety (butterfly orchid), error (fly orchid), disgust (frog orchid), and adroitness (spider orchid).
Scientific Title: | Orchidaceae spp. |
Native Vary: | Cosmopolitan |
Flowering Season: | Numerous seasons (relying on the species) |
26. Orchid Cactus

A member of the Cactaceae plant household, the Epiphyllum genus incorporates ten species of flowering cacti, generally referred to as orchid cactuses. Though they’re technically cacti, these vegetation don’t resemble the cacti you’re seemingly aware of (i.e., thick, pad-like leaf segments and spikes).
These flowers that begin with the letter Oi have orchid-like leaves and stems and produce pretty, pointed, star or pom-pom-like flowers in shades of white, yellow, crimson, pink, and purple.
Scientific Title: | Epiphyllum spp. |
Native Vary: | Mexico, Central America, and South America |
Flowering Season: | Early spring (white and yellow), mid-spring (crimson and pink), and late spring and early summer season (purple and deep crimson) |
27. Orchid Tree

A member of the Fabaceae (pea or legume) plant household, Bauhinia variegata is a species of small to medium-sized, flowering tree generally referred to as orchid tree or mountain ebony. The bushes have light-green leaves related on the base in pairs, like butterfly wings. When in bloom, the bushes produce an plentiful cover of purple, white, and vibrant pink flowers that resemble the blossoms of orchids.
Scientific Title: | Bauhinia variegata |
Native Vary: | Southern Asia |
Flowering Season: | Late winter to early spring |
28. Oregano

You could find Oregano vulgare in a bottle on most spice racks labeled with its widespread identify, oregano. Like many members of the Lamiaceae (mint, sage, or deadnettle) plant household, oregano is prized for its fragrant properties and is usually used as a aromatic herb in cooking.
It’s prevalent in Italian delicacies. The vegetation themselves are bushy perennials with woody stems and rounded leaves. They produce corymbs of small white or purple flowers.
Scientific Title: | Origanum vulgare |
Native Vary: | The Mediterranean Area |
Flowering Season: | Midsummer to fall |
29. Oregon Grape

Generally referred to as Oregon grape or holly-leaved barberry, Mahonia aquifolium is a bushy flowering plant that belongs to the Berberidaceae (barberry) plant household. The bushes have ovate leaves with wavy margins and vibrant yellow flowers in densely clustered racemes.
These flowers that begin with the letter O give method to grape-like berries in darkish, bluish-purple. Although considerably bitter, the berries are edible, generally used to make jams, and even fermented to make wine.
Scientific Title: | Mahonia aquifolium |
Native Vary: | The Pacific Coast from California to British Columbia and inland into Montana |
Flowering Season: | February by way of Could |
30. Oriental Bittersweet

A member of the Celastraceae (bittersweet or staff-vine) plant household, Celastrus orbiculatus is a species of flowering, woody vine that’s generally referred to as oriental bittersweet, Asian bittersweet, Chinese language bittersweet, or round-leaved bittersweet.
The vegetation are composed of vines with silver to crimson bark that may develop to be as much as nearly 4 inches in diameter. On their very own, they grow to be thickets. Rising close to bushes, they’ll climb as much as 40 toes.
Generally, these vines even strangle bushes or break them underneath their extreme weight. They’ve rounded leaves and produce small clusters of inexperienced flowers that produce crimson seeds in yellow pods.
Scientific Title: | Celastrus orbiculatus |
Native Vary: | Jap Asia |
Flowering Season: | Could and June |
31. Oriental Lily

The time period “Oriental lily” refers to a gaggle of hybrid lilies characterised by their vibrant colours, sturdy fragrances, and huge flowers. A few of the most prized lilies of this group embody Lilium ‘Stargazer,’ Lilium ‘Starfighter,’ Lilium ‘Casa Blanca,’ and Lilium ‘Sumatra.’ This group of lilies options blossoms in shades of crimson, pink, orange, yellow, and white.
Scientific Title: | Lilium spp. (Oriental Group Hybrids) |
Native Vary: | Human-cultivated hybrids |
Flowering Season: | Mid to late summer season |
32. Oriental Poppy

Papaver orientale (generally referred to as Oriental poppy) is a flowering perennial that belongs to the Papaveraceae (poppy) plant household. They produce clumps (1’x2′) of finely dissected, furry foliage and huge blossoms atop slender stems.
These flowers that begin with the letter O are usually scarlet, with black markings close to the bottom of the petals. Cultivars, nevertheless, can produce flowers in varied colours, together with salmon, apricot, orange, crimson, pale pink, mauve, and white.
Scientific Title: | Papaver orientale |
Native Vary: | Turkey, Iran, and the Caucasus |
Flowering Season: | Late spring to early summer season |
33. Orthrosanthus chimboracensis (Morning Flag)

Orthorosanthus chimboracensis (generally referred to as morning flag) is a flowering plant belonging to the Iridaceae (iris) plant household. The vegetation are composed of sturdy, segmented stems and strap-like foliage.
The flowers are produced in free terminal clusters or individually. They’ve six ovate, pointed petals in shades that vary from deep blue to periwinkle to white. Self-sowing morning flag vegetation produce a number of seeds and bloom of their second yr of progress.
Scientific Title: | Orthrosanthus chimboracensis |
Native Vary: | Northwestern South America and components of Central America |
Flowering Season: | August by way of November |
34. Osbeckia

Generally referred to as osbeckia or starry osbeckia, Osbeckia stellata is an erect subshrub or herbaceous plant belonging to the Melastomataceae (melastomes) plant household. It options whorled, furry leaves and singular, terminal flower blossoms with 4 bright-pink petals and a distinguished cluster of central, yellow stamens. In its native habitat, it’s mostly discovered rising on grassy slopes at excessive altitudes.
Scientific Title: | Osbeckia stellata |
Native Vary: | Southern Asia |
Flowering Season: | July by way of November |
35. Osier

A member of the Salicaceae (willow) plant household, Salix viminalis (generally referred to as osier, widespread osier, or basket willow) is a multistemmed shrub that may develop as much as greater than 30 toes in peak however usually achieves round 20 toes.
They produce lengthy, slender, shiny inexperienced leaves and flowerheads all through the branches. The yellow flowers don’t have any petals and are referred to as catkins. Within the language of flowers, they symbolize frankness.
Scientific Title: | Salix viminalis |
Native Vary: | Europe and Asia |
Flowering Season: | April to Could |
36. Osmanthus fragrans (Candy Olive)

A member of the Oleacea (olive) plant household, Osmanthus fragrans (generally referred to as osmanthus, candy olive, aromatic olive, or tea olive) is a small evergreen shrub or tree. It has slender branches with elongated, ovate leaves.
These flowers that begin with the letter O are produced in clusters alongside the branches and encompass tiny flowers in shades of yellow, white, or orange. The flowers are generally dried and used alone or blended with different leaves to make tea.
Scientific Title: | Osmanthus fragrans |
Native Vary: | Jap Asia |
Flowering Season: | Mid-spring and late summer season |
37. Osmanthus heterophyllus (Holly Osmanthus)

Holly osmanthus can also be a small, evergreen tree or shrub. It has slender branches. When younger, the leaves have pointed margins and intently resemble the leaves of English holly (the favored Christmas plant).
Because the leaves mature, the sides easy out and grow to be easy oval shapes. Holly osmanthus produces clusters of small, aromatic flowers all alongside its branches. The flowers are usually snowy white and adopted by black berries.
Scientific Title: | Osmanthus heterophyllus |
Native Vary: | Japan, Korea, and Taiwan |
Flowering Season: | Late fall by way of early winter |
38. Our Lord’s Candle

A member of the Asparagaceae plant household, Hesperoyucca whipplei (generally referred to as our Lord’s candle, chaparral yucca, Spanish bayonet, foothills yucca, or Quixote yucca) is an evergreen desert shrub. It consists of a dense, three-foot rosette of sturdy, silvery inexperienced, lance-shaped foliage.
When in bloom, a formidable, fourteen-foot stem arises from the middle of the foliage to supply a big, terminal raceme of bell-shaped flowers in shades of purple and white.
Scientific Title: | Hesperoyucca whipplei (previously Yucca whipplei) |
Native Vary: | California and coastal northwestern Mexico |
Flowering Season: | Mid-spring into summer season |
39. Outeniqua Yellowwood

A member of the Podocarpaceae (podocarps) plant household, Afrocarpus falcatus is a big, evergreen, conifer tree that may develop to about 150 to 200 toes in peak and 6 to seven toes in diameter.
The feminine bushes produce spherical, yellowish-green flowers which might be really seed-bearing cones. The bushes produce sturdy wooden that’s generally utilized in shipbuilding along with different sorts of building.
In English, the plant known as Outeniqua yellowwood, African pine tree, yellowwood, and weeping yew. It additionally has a number of widespread names in Afrikaans.
Scientific Title: | Afrocarpus falcatus (Syn. Podocarpus falcatus) |
Native Vary: | Southwestern coastal Africa |
Flowering Season: | Early summer season |
40. Ox-Eye Daisy

A member of the Asteraceae plant household, Leucanthemum vulgare is a freely spreading, rhizomatic perennial generally referred to as ox-eye daisy, canine daisy, or marguerite.
These flowers that begin with the letter O develop to about two toes in peak and produce a profusion of cheerful-looking flowerheads composed of white ray florets surrounding bright-yellow disc florets.
Within the language of flowers, they symbolize each obstacles and persistence.
Scientific Title: | Leucanthemum vulgare |
Native Vary: | Europe and northern Asia |
Flowering Season: | Could by way of August |
41. Oxalis

A member of the Oxalidaceae (wooden sorrel) plant household, the Oxalis genus incorporates 566 species of annual and perennial flowering vegetation. The genus contains vegetation generally referred to as wooden sorrels, false shamrocks, and sourgrasses. They develop in clumps and produce varied white, pink, purple, yellow, and red-accented flowers.
Scientific Title: | Oxalis spp. |
Native Vary: | Cosmopolitan |
Flowering Season: | Spring and summer season |
42. Oxlip

Primula elatior (generally referred to as oxlip or true oxlip) is an herbaceous or semi-evergreen perennial flower belonging to the Primulaceae (primrose) plan household.
The vegetation produce low-growing rosettes of broad, ovate foliage and twelve-inch stems, upon which seem terminal clusters of nodding flowers in a pale shade of yellow. Within the language of flowers, oxlip means “communicate out.”
Scientific Title: | Primula elatior |
Native Vary: | Europe and northwestern Asia |
Flowering Season: | Mid-spring to early summer season |
43. Oxypetalum coeruleum (Tweedia)

A member of the Apocynaceae plant household, Oxypetalum coeruleum is an evergreen, perennial vine or straggling subshrub generally referred to as tweedia, which refers to a synonymous scientific identify of the species.
The vegetation produce heart-shaped, deep-green foliage and clusters of starry, sky-blue flowers that mature to purple. The Alba cultivar has white flowers, and ‘Rosea’ produces pink flowers.
Scientific Title: | Oxypetalum coeruleum (Syn. Tweedia caerulea) |
Native Vary: | Uruguay and southern Brazil |
Flowering Season: | Summer season to fall |
44. Oxyria digyna (Mountain Sorrel)

Oxyria digyna (generally referred to as mountain sorrel, alpine sorrel, or wooden sorrel) is a perennial flowering plant species belonging to the Polygonaceae (buckwheat) plant household.
They develop in dense bunches with kidney-shaped leaves and stalks that each are usually reddish-green however will also be a deeper inexperienced in coloration.
Mountain sorrels produce spike-shaped racemes of tiny flowers that emerge inexperienced and switch crimson as they mature. Within the language of flowers, sorrel represents affection, maternal tenderness, and pleasure.
Scientific Title: | Oxyria digyna |
Native Vary: | Mountainous and arctic areas of the Northern Hemisphere |
Flowering Season: | June by way of September |
45. Oyster Plant

A member of the Boraginaceae plant household, Mertensia maritima (generally referred to as oyster plant, oyster leaf, or sea bluebells) is a low-growing, spreading perennial that produces thick, oval-shaped leaves in a cool shade of blue-green.
The deep indigo-blue flowers seem in clusters, are bell-shaped, and have darkish purple facilities. The plant reportedly tastes faintly of oysters when eaten, and that is the place its widespread names come from.
Scientific Title: | Mertensia maritima |
Native Vary: | Northern gravelly coastal areas of the Northern Hemisphere |
Flowering Season: | Late spring to midsummer |
46. Ozark Bluestar

Amsonia illustris (generally referred to as Ozark bluestar, showy blue-star, or swamp blue-star) is a perennial, clump-forming herb that belongs to the Apocynaceae plant household.
The vegetation have clusters of leafy stems that develop to be about two to a few toes in peak. They produce terminal, pyramid-shaped clusters of star-shaped flowers with slender petals in mild shades of blue. The flowers entice native butterflies.
Scientific Title: | Amsonia illustris |
Native Vary: | Iowa, Missouri, Kansas, Texas, and Nevada |
Flowering Season: | March by way of Could |
47. Ozark Hawthorn

Crataegus alabamensis (generally referred to as Ozark hawthorn) is an endangered, deciduous, perennial shrub or tree that belongs to the Rosaceae (rose) plant household.
The vegetation are fairly enticing once they bloom throughout spring, because the bushes or shrubs grow to be coated with profusions of flower clusters. The flowers have rounded, five-petaled flowers that resemble wild roses, and so they blossom in shades of snowy white or mild pink.
Within the language of flowers, hawthorn symbolizes prudence and hope.
Scientific Title: | Crataegus alabamensis (Syn. Crataegus insidiosa) |
Native Vary: | Southeastern United States |
Flowering Season: | March and April |
48. Ozark Sundrops

Oenothera macrocarpa is an herbaceous perennial that belongs to the Onagraceae plant household. Frequent names embody Ozark sundrops, bigfruit night primrose, and Missouri night primrose.
The vegetation can develop to be about 18 inches in peak and unfold about two toes. They produce a number of canary-yellow, cup-shaped, evenly aromatic flowers all through the blooming season. Flowers open within the night, final by way of the night time, and are spent and closed by morning.
Scientific Title: | Oenothera macrocarpa (Syn. Oenothera missouriensis) |
Native Vary: | South-central United States and northern Mexico |
Flowering Season: | April by way of August |
49. Ozark Witch-Hazel

A member of the Hamamelidaceae (witch-hazel) plant household, Hamamelis vernalis (generally referred to as Ozark witch-hazel or vernal witch-hazel) is a big, deciduous shrub or small tree that reaches about 15 toes in peak.
The shrubs have an open, fanned crown with irregular, crooked branches. The leaves are crinkled and narrowed, and the flowers seem on naked branches and are barely star-shaped with wrinkled petals and calyces in shades of yellow, orange, and darkish crimson.
Witch-hazel represents a spell or being spellbound within the language of flowers.
Scientific Title: | Hamamelis vernalis |
Native Vary: | Oklahoma, Missouri, and Arkansas |
Flowering Season: | December by way of March |
50. Ozothamnus diosmifolius (Rice Flower)

Ozothamnus diosmifolius is an erect, perennial, woody shrub that grows to be about seven toes in peak. Its widespread names embody rice flower, capsule flower, sago bush, and white dogwood. Though, it belongs to the Asteraceae plant household, not the Cornaceae (dogwood) plant household.
The rice flower plant produces flower clusters much like these of dogwoods, as their clusters function dense corymbs of white flowerheads. They’re broadly commercially grown, as rice flowers are in style within the florist commerce.
Scientific Title: | Ozothamnus diosmifolius |
Native Vary: | Jap Australia |
Flowering Season: | Mid-spring to mid-fall |
Flowers That Begin With O FAQs:
What Are Some In style Pink Flowers That Begin With O?
A number of species of primrose from the Oenothera genus have pink flowers, along with oleanders, a number of species of orchids, and Oriental lilies.
What Are Some In style Pink Flowers Starting With O?
Some in style crimson flowers that begin with the letter O embody a number of species of orchids, osteospermum, and oleanders, along with Oriental lilies and Oriental poppies.
What Are Some Distinctive Flowers That Begin With O?
A couple of distinctive vegetation with unusual-looking flower blossoms that begin with the letter O embody previous man’s whiskers, previous man’s beard, one-flowered wintergreen, orange ball tree, orange milkwort, and our Lord’s candle.
Are There Any Uncommon or Endangered Flowers That Begin With O?
Some endangered flowers that begin with the letter O embody:
- Ochrosia haleakalae (Holei)
- Ochrosia kilaueaensis (Holei)
- Oenothera deltoides ssp. howellii (Antioch dunes night primrose)
- Opuntia treleasei (Bakersfield cactus)
- Orcuttia spp. (varied species of Orcutt grass)
- Ottoschulzia rhodoxylon (Palo de rosa)
- Oxypolis canbyi (Canby’s dropwort)
- Oxytheca parishii var. goodmaniana (Cushenbury oxytheca)
- Oxytropis campestris var. chartacea (Fassett’s locoweed)
It’s Official! Flowers That Begin With O Are Completely Oneiric
Aren’t flowers that begin with O dreamy? We definitely assume so! Whether or not you plant all O flowers or all the alphabet, your backyard is certain to be dreamy too!
For extra, see our in-depth information to:
Andrew is the Editorial Director at Petal Republic. He holds a BSc diploma in Plant Sciences and has skilled professionally at main floristry colleges in London and Paris. In amongst overseeing a world editorial crew, Andrew’s a passionate content material creator round all issues flowers, floral design, gardening, and houseplants.