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Oriental thuja

Platycladus orientalis
Platycladus orientalis Platycladus orientalis Platycladus orientalis Platycladus orientalis Fruit and Leaf Fruit and Leaf Platycladus orientalis Platycladus orientalis Platycladus orientalis Platycladus orientalis Platycladus orientalis Platycladus orientalis
7 Cultivars/Varieties

Orion Anise-tree

Illicium 'Orion'
Illicium 'Orion' Illicium 'Orion' Illicium 'Orion' Illicium 'Orion'

Ornamental Bacopa

Chaenostoma cordatum
Sutera cordata Sutera cordata Sutera cordata Sutera cordata Sutera cordata Sutera cordata Sutera cordata Sutera cordata Chaenostoma cordatum Chaenostoma cordatum
7 Cultivars/Varieties

Ornamental Cabbage

Brassica oleracea (Acephala Group)
Edible Kale Edible Kale Brassica oleracea var. acephala Brassica oleracea var. acephala Brassica oleracea var. acephala Brassica oleracea var. acephala Brassica oleracea Brassica oleracea Brassica oleracea Brassica oleracea Brassica oleracea (Acephala group) Brassica oleracea (Acephala group)
13 Cultivars/Varieties

Ornamental Cabbages

Brassica oleracea (Acephala Group)
Edible Kale Edible Kale Brassica oleracea var. acephala Brassica oleracea var. acephala Brassica oleracea var. acephala Brassica oleracea var. acephala Brassica oleracea Brassica oleracea Brassica oleracea Brassica oleracea Brassica oleracea (Acephala group) Brassica oleracea (Acephala group)
13 Cultivars/Varieties

Ornamental Comfrey

Symphytum grandiflorum
Symphytum grandiflorus Symphytum grandiflorus Symphytum grandiflorus Symphytum grandiflorus Symphytum grandiflorus Symphytum grandiflorus Symphytum grandiflorus Symphytum grandiflorus Symphytum grandiflorus Symphytum grandiflorus
2 Cultivars/Varieties

Ornamental Gourd

Cucurbita pepo
Zucchini Plant Top View Zucchini Plant Top View Mature plant Mature plant Zucchini Plant Zucchini Plant Zucchini Flower and Fruit Cut in Half Zucchini Flower and Fruit Cut in Half Tendril Tendril Petit pan squash Petit pan squash
1 Cultivar/Variety

Ornamental Gourd

Cucurbita
Cucurbita Cucurbita Cucurbita Cucurbita Cucurbita Cucurbita fruit, Mecklenburg County, NC fruit, Mecklenburg County, NC leaves, Mecklenburg County, NC leaves, Mecklenburg County, NC Cucurbita Cucurbita
5 Cultivars/Varieties

Ornamental Kale

Brassica oleracea (Acephala Group)
Edible Kale Edible Kale Brassica oleracea var. acephala Brassica oleracea var. acephala Brassica oleracea var. acephala Brassica oleracea var. acephala Brassica oleracea Brassica oleracea Brassica oleracea Brassica oleracea Brassica oleracea (Acephala group) Brassica oleracea (Acephala group)
13 Cultivars/Varieties

Ornamental Onion

Allium oreophilum
Form in native habitat Form in native habitat Flowers Flowers Flowers Flowers Growing in a pot Growing in a pot Fruits forming Fruits forming Allium oreophilum Allium oreophilum

Ornamental Onion

Allium caeruleum
Flowers Flowers habitat habitat Form and leaves Form and leaves Flower Flower Flower Flower Flower Flower
2 Cultivars/Varieties

Ornamental Onion

Allium karataviense
Flower form Flower form Leaves and emerging flower bud Leaves and emerging flower bud Leaves Leaves Native habitat Native habitat Allium karataviense Allium karataviense Allium karataviense Allium karataviense
1 Cultivar/Variety

Ornamental Onion

Allium giganteum
Plant Plant Allium giganteum Allium giganteum Allium giganteum Allium giganteum Close-up of flowers Close-up of flowers Flowers Flowers Fruits Fruits

Ornamental Onion

Allium aflatunense
Form Form Flowers Flowers Native habitat Native habitat Flower and stem Flower and stem Flower bud Flower bud Flower Flower
1 Cultivar/Variety

Ornamental Onion

Allium hollandicum
Form Form Leaves Leaves Mass planted 'Purple Sensation' Mass planted 'Purple Sensation' Flower buds 'Purple Sensation' Flower buds 'Purple Sensation' Form of 'Purple Sensation' Form of 'Purple Sensation'
1 Cultivar/Variety

Ornamental Onion

Allium sphaerocephalon
Flower Flower Form Form Flower Flower Bulb Bulb Flowers Flowers flower and form flower and form

Ornamental Onion

Allium cristophii
Flowers Flowers Close up of flower Close up of flower Dried flowers Dried flowers Flower Flower Flower Flower Flower Flower

Ornamental Onions

Allium
Alllium Alllium Allium Allium Allium Plant Allium Plant Allium Allium Allium Allium Allium schoenoprasum Allium schoenoprasum
16 Cultivars/Varieties

Ornamental Oregano

Origanum laevigatum
Origanum laevigatum 'Pilgrim' Origanum laevigatum 'Pilgrim' Origanum laevigatum 'Herrenhausen' Origanum laevigatum 'Herrenhausen'
4 Cultivars/Varieties

Ornamental Pepper

Capsicum annuum
Capsicum annuum Capsicum annuum Capsicum annuum Capsicum annuum Capsicum annuum Capsicum annuum Capsicum annuum Capsicum annuum Capsicum annuum Capsicum annuum Capsicum annuum Capsicum annuum
19 Cultivars/Varieties

Ornamental Peppers

Capsicum annuum
Capsicum annuum Capsicum annuum Capsicum annuum Capsicum annuum Capsicum annuum Capsicum annuum Capsicum annuum Capsicum annuum Capsicum annuum Capsicum annuum Capsicum annuum Capsicum annuum
19 Cultivars/Varieties

Ornamental Pumpkin

Cucurbita
Cucurbita Cucurbita Cucurbita Cucurbita Cucurbita Cucurbita fruit, Mecklenburg County, NC fruit, Mecklenburg County, NC leaves, Mecklenburg County, NC leaves, Mecklenburg County, NC Cucurbita Cucurbita
5 Cultivars/Varieties

Ornamental Strawberry

Fragaria 'Red Ruby'
Fragaria 'Red Ruby' Fragaria 'Red Ruby'

Ornamental Sweetpotato

Ipomoea batatas
Ipomea batatas Ipomea batatas Ipomoea x batatas Ipomoea x batatas Ipomoea x batatas Ipomoea x batatas Ipomoea x batatas Ipomoea x batatas Ipomea batatas Ipomea batatas Ipomea batatas Ipomea batatas
15 Cultivars/Varieties

Ornithogalum

Ornithogalum thyrsoides
Ornithogalum umbellatum, O. thrysoides Ornithogalum umbellatum, O. thrysoides Ornithogalum umbellatum, O. thrysoides Ornithogalum umbellatum, O. thrysoides Ornithogalum umbellatum, O. thrysoides Ornithogalum umbellatum, O. thrysoides habit, Mecklenburg County, NC habit, Mecklenburg County, NC

Orphan John

Hylotelephium telephium
Hylotelephium telephium Hylotelephium telephium Hylotelephium telephium Hylotelephium telephium Hylotelephium telephium Hylotelephium telephium Hylotelephium telephium Hylotelephium telephium Hylotelephium telephium Hylotelephium telephium Hylotelephium telephium Hylotelephium telephium
8 Cultivars/Varieties

Orpine

Hylotelephium
Hylotelephium Hylotelephium Hylotelephium Hylotelephium Hylotelephium Hylotelephium Hylotelephium Hylotelephium hylotelephium maximum hylotelephium maximum Succulent, gray-green leaves in a tight, low mound. Succulent, gray-green leaves in a tight, low mound.
9 Cultivars/Varieties

Orpine

Hylotelephium telephium
Hylotelephium telephium Hylotelephium telephium Hylotelephium telephium Hylotelephium telephium Hylotelephium telephium Hylotelephium telephium Hylotelephium telephium Hylotelephium telephium Hylotelephium telephium Hylotelephium telephium Hylotelephium telephium Hylotelephium telephium
8 Cultivars/Varieties

Osage Crape Myrtle

Lagerstroemia 'Osage'
Lagerstroemia 'Osage' Lagerstroemia 'Osage' Lagerstroemia 'Osage' Lagerstroemia 'Osage' Lagerstroemia Osage Lagerstroemia Osage

Osage-Orange

Maclura pomifera
Flower Flower Fruit Fruit Form Form Close up fruit Close up fruit Yellow fall color Yellow fall color Cut open fruit with milky sap. Cut open fruit with milky sap.
3 Cultivars/Varieties

Osceola's Plume

Stenanthium densum
Flower stalk Flower stalk Stenanthium densum Stenanthium densum Stenanthium densum Stenanthium densum Stenanthium densum Stenanthium densum Stenanthium densum Stenanthium densum Stenanthium densum Stenanthium densum

Oshima Kan Suge

Carex oshimensis
Carex hachijoensis 'Evergold' Carex hachijoensis 'Evergold' Carex hachijoensis 'Evergold' Carex hachijoensis 'Evergold' Carex oshimensis Carex oshimensis Carex oshimensis Carex oshimensis Carex oshimensis Carex oshimensis 'Evergold' Flower - Winter - Wake Co., NC 'Evergold' Flower - Winter - Wake Co., NC
5 Cultivars/Varieties

Oso Easy® Urban Legend® rose

Rosa Oso Easy® Group
Single cherry red flowers. Single cherry red flowers. Single very pale pink flowers. Single very pale pink flowers. Single pale orange flower. Single pale orange flower.
12 Cultivars/Varieties

O. Spring Chinese Holly

Ilex cornuta 'O. Spring'
Ilex cornuta 'O'Spring' Ilex cornuta 'O'Spring' Ilex cornuta 'O'Spring' Ilex cornuta 'O'Spring' Ilex cornuta 'O'Spring' Ilex cornuta 'O'Spring'

Ostrich-Feather Fern

Onoclea struthiopteris
Matteuccia struthiopteris Matteuccia struthiopteris Matteuccia struthiopteris Matteuccia struthiopteris Matteuccia struthiopteris Matteuccia struthiopteris Matteuccia struthiopteris Matteuccia struthiopteris Matteuccia struthiopteris Matteuccia struthiopteris Matteuccia struthiopteris Matteuccia struthiopteris
1 Cultivar/Variety

Ostrich Fern

Onoclea struthiopteris
Matteuccia struthiopteris Matteuccia struthiopteris Matteuccia struthiopteris Matteuccia struthiopteris Matteuccia struthiopteris Matteuccia struthiopteris Matteuccia struthiopteris Matteuccia struthiopteris Matteuccia struthiopteris Matteuccia struthiopteris Matteuccia struthiopteris Matteuccia struthiopteris
1 Cultivar/Variety

Oswego Tea

Monarda didyma
Flowers Flowers plant with Lantana camara 'Miss Huff' in summer in Moore County plant with Lantana camara 'Miss Huff' in summer in Moore County Flowers Flowers Close up of flower Close up of flower Monarda didyma Monarda didyma Blooms Blooms
2 Cultivars/Varieties

Oswego Tea

Monarda
Form in the garden Form in the garden Close up of flowers Close up of flowers Red tubular flowers Red tubular flowers Bee on the flowers Bee on the flowers Leaves Leaves Seed heads Seed heads
1 Cultivar/Variety

Otto Luyken Cherry Laurel

Prunus laurocerasus 'Otto Luyken'
Prunus laurocerasus 'Otto Luyken' Prunus laurocerasus 'Otto Luyken' Prunus laurocerasus 'Otto Luyken' Prunus laurocerasus 'Otto Luyken' Prunus laurocerasus 'Otto Luyken' Prunus laurocerasus 'Otto Luyken' Prunus laurocerasus 'Otto Luyken' Prunus laurocerasus 'Otto Luyken' Prunus laurocerasus 'Otto Luyken' flowers Prunus laurocerasus 'Otto Luyken' flowers Prunus laurocerasus 'Otto Luyken' Prunus laurocerasus 'Otto Luyken'

Otto Luyken's Laurel

Prunus laurocerasus 'Otto Luyken'
Prunus laurocerasus 'Otto Luyken' Prunus laurocerasus 'Otto Luyken' Prunus laurocerasus 'Otto Luyken' Prunus laurocerasus 'Otto Luyken' Prunus laurocerasus 'Otto Luyken' Prunus laurocerasus 'Otto Luyken' Prunus laurocerasus 'Otto Luyken' Prunus laurocerasus 'Otto Luyken' Prunus laurocerasus 'Otto Luyken' flowers Prunus laurocerasus 'Otto Luyken' flowers Prunus laurocerasus 'Otto Luyken' Prunus laurocerasus 'Otto Luyken'

Our Lady's Bells

Campanula trachelium
Campanula trachelium flower Campanula trachelium flower Bloom close up Bloom close up Bloom close up Bloom close up Flower and upper leaves Flower and upper leaves Campanula trachelium form Campanula trachelium form Form Form
1 Cultivar/Variety

Our Lady's Milk Drops

Pulmonaria officinalis
Pulmonaria officinalis Pulmonaria officinalis Pulmonaria officinalis Pulmonaria officinalis Pulmonaria officinalis Pulmonaria officinalis Pulmonaria officinalis Pulmonaria officinalis 'Trevi Fountain' Flower & Leaves - April 15 - Wake Co., NC 'Trevi Fountain' Flower & Leaves - April 15 - Wake Co., NC 'Trevi Fountain' Flower & Leaves - April 15 - Wake Co., NC 'Trevi Fountain' Flower & Leaves - April 15 - Wake Co., NC
1 Cultivar/Variety

Outta the Blue

Rosa Outta The Blue™ 'WEKstephitsu'
Pink fully double hybrid rose Pink fully double hybrid rose Pink fully double hybrid rose Pink fully double hybrid rose

Oval Leaf Peperomia

Peperomia obtusifolia
Form Form Peperomia obtusifolia Peperomia obtusifolia Plant with rubbery, obovate leaves and spikes of minute flowers. Plant with rubbery, obovate leaves and spikes of minute flowers. Shiny, rubbery leaves and upright spikes of minute flowers. Shiny, rubbery leaves and upright spikes of minute flowers. Stem and Leaves Stem and Leaves Peperomia obtusifolia Peperomia obtusifolia
6 Cultivars/Varieties

Overcup Oak

Quercus lyrata
Form (Pitt County, NC)-Late Fall Form (Pitt County, NC)-Late Fall Branches (Pitt County, NC)-Late Fall Branches (Pitt County, NC)-Late Fall Branches (Pitt County, NC)-Late Fall Branches (Pitt County, NC)-Late Fall Form and acorn Form and acorn Leaves and acorns (Morris Arboretum, Philadelphia, PA) Leaves and acorns (Morris Arboretum, Philadelphia, PA) Entire leaf margin (Pitt County, NC)-Late Fall Entire leaf margin (Pitt County, NC)-Late Fall

Overleese Pawpaw

Asimina triloba 'Overleese'
Asimina triloba 'Overleese' Asimina triloba 'Overleese'

Owl's Head

Platanthera ciliaris
Flower - Closeup - Late summer - Croatan National Forest - NC Flower - Closeup - Late summer - Croatan National Forest - NC Form - Late summer - Croatan National Forest - NC Form - Late summer - Croatan National Forest - NC Flower - Late summer - Croatan National Forest - NC Flower - Late summer - Croatan National Forest - NC View of the inflorecence from the top. Frederick Co., Maryland View of the inflorecence from the top. Frederick Co., Maryland Flowers bloom from the bottom of the inflorescence to the top. Flowers bloom from the bottom of the inflorescence to the top. Simple leaves clasp the stem. Simple leaves clasp the stem.

Oxalis

Oxalis stricta
Oxalis stricta habit Oxalis stricta habit Oxalis stricta abaxial leaflet surface Oxalis stricta abaxial leaflet surface Oxalis stricta stem Oxalis stricta stem Flowers Flowers Flowers Flowers Plant Plant