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Quercus x heterophylla

Bartram Oak
Form of the tree (Kingsessing, Philadelphia, PA)-Early Fall Form of the tree (Kingsessing, Philadelphia, PA)-Early Fall Form (Kingsessing, Philadelphia, PA)-Early Fall Form (Kingsessing, Philadelphia, PA)-Early Fall Crown (Kingsessing, Philadelphia, PA)-Early Fall Crown (Kingsessing, Philadelphia, PA)-Early Fall Leaves with shallow l (Kingsessing, Philadelphia, PA)-Early Fall Leaves with shallow l (Kingsessing, Philadelphia, PA)-Early Fall upper and underside of leaves (Kingsessing, Philadelphia, PA)-Ea upper and underside of leaves (Kingsessing, Philadelphia, PA)-Ea End buds (Kingsessing, Philadelphia, PA)-Early Fall End buds (Kingsessing, Philadelphia, PA)-Early Fall

Quercus x rudkinii

Hybrid Oak
Tree form (Durham, NC)-Early Fall Tree form (Durham, NC)-Early Fall Entire margin (Durham, NC)-Early Fall Entire margin (Durham, NC)-Early Fall Leaf front and back (Durham, NC)-Early Fall Leaf front and back (Durham, NC)-Early Fall Stem buds (Durham, NC)-Early Fall Stem buds (Durham, NC)-Early Fall Acorn side view (Durham, NC)-Early Fall Acorn side view (Durham, NC)-Early Fall Bottom view of acorn (Durham, NC)-Early Fall Bottom view of acorn (Durham, NC)-Early Fall

Quercus x runcinata

Logue Hybrid, Logue Oak
Tree form (Brighton, NY)-Late Summer Tree form (Brighton, NY)-Late Summer Lobed margins (Brighton, NY)-Late Summer Lobed margins (Brighton, NY)-Late Summer Front and back of leaf (Brighton, NY)-Late Summer Front and back of leaf (Brighton, NY)-Late Summer Underside of leaf with hairs (Brighton, NY)-Late Summer Underside of leaf with hairs (Brighton, NY)-Late Summer Stem bud (Brighton, NY)-Late Summer Stem bud (Brighton, NY)-Late Summer Acorn side view (Brighton, NY)-Late Summer Acorn side view (Brighton, NY)-Late Summer

Ranunculus

Butter Cress, Buttercup, Crowfoot, Figwort, Persian Buttercup, Ranunculus, Spearwort
2 Cultivars/Varieties

Ranunculus acris

Burwort, Butter Cress, Buttercup, Crowfoot burwort, Figwort

Ranunculus carolinianus

Carolina Buttercup
Flower Flower Plant Plant

Ranunculus ficaria

Dusky Maiden, Fig Buttercup, Lesser Celandine, Lesser Crowfoot, Pilewort
Ficaria verna Ficaria verna Ficaria verna Ficaria verna Close up of flower Close up of flower Leaves Leaves Underside of leaf Underside of leaf Root tubers (Philadelphia, PA)-Mid Fall Root tubers (Philadelphia, PA)-Mid Fall

Ranunculus flammula

Lesser Spearwort, Miniature Spearwort
Ranunclus flammula Ranunclus flammula Ranunclus flammula Ranunclus flammula Ranunclus flammula Ranunclus flammula Ranunclus flammula Ranunclus flammula

Ranunculus hybrids

Persian Buttercup
Ranunculus hybrids Ranunculus hybrids Ranunculus hybrids Ranunculus hybrids Ranunculus hybrids Ranunculus hybrids Ranunculus hybrids Ranunculus hybrids Ranunculus hybrids Ranunculus hybrids

Ranunculus sardous

Hairy Buttercup, Hairy Crowfoot
Plants in Bloom Plants in Bloom Leaves Leaves Leaf Leaf Plant Plant Flower Flower Plant in Bloom Plant in Bloom

Raphanus raphanistrum

Rabano de Maleza, Wild Radish

Raphanus raphanistrum subsp. sativus

Daikon, Daikons, Forage Radish, Mooli, Moolis, Radish, Radishes, Rat's Tail, Tillage Radish
Roots Roots Whole plant Whole plant Root cut in half Root cut in half Flower Flower Seeds Seeds A variety of roots A variety of roots
5 Cultivars/Varieties

Ratibida columnifera

Long-headed Coneflower, Mexican Hat, Prairie Coneflower
Ratibida columnifera Ratibida columnifera daisy-like flower with reddish "petals" and an elongate "eye" daisy-like flower with reddish "petals" and an elongate "eye" flowers with yellow rays. flowers with yellow rays. flowers growing in prairie. flowers growing in prairie.

Ratibida pinnata

Gray-headed Coneflower, Grey-headed Coneflower, Pinnate Prairie Coneflower, Prairie Coneflower, Yellow Coneflower
Form Form Flowers Flowers Used in a garden Used in a garden Flowers Flowers Close up of flower Close up of flower Fruit Fruit
1 Cultivar/Variety

Ravenala madagascariensis

Form Form

Ravenea rivularis

Majestic Palm, Majesty Palm
Solitary, thick-trunk palm with pinnate leaves. Solitary, thick-trunk palm with pinnate leaves. Large, thick-trunked palm with pinnate leaves. Large, thick-trunked palm with pinnate leaves. Solitary, thick-trunk palm with pinnate leaves. Solitary, thick-trunk palm with pinnate leaves. A large cluster of small, white flowers. A large cluster of small, white flowers. Large clusters of small red fruits Large clusters of small red fruits

Reineckea carnea

Chinese Lucky Grass, False Mondo Grass, Ribbon Grass, Ribbon Lily
Form in bloom Form in bloom Form Form Flowers Flowers Flower detail Flower detail Fruit Fruit
4 Cultivars/Varieties

Renealmia

Ginger Lily, Shell Flower, Shell Ginger
Alpinia spp. Alpinia spp. Alpinia zerumbet Alpinia zerumbet Alpinia zerumbet Alpinia zerumbet Alpinia zerumbet Alpinia zerumbet

Reynoutria japonica

Asiatic Knotweed, Donkey Rhubarb, Fleeceflower, Japanese Bamboo, Japanese Knotweed
Plant in bloom Plant in bloom Form Form Leaves Leaves Alternate leaves Alternate leaves Flowers Flowers New fruits, white color. New fruits, white color.
1 Cultivar/Variety

Rhamnella franguloides

Rhamnella
Rhamnella franguloides Rhamnella franguloides

Rhamnus

Buckthorn
Rhamnus spp. Rhamnus spp. Rhamnus spp. Rhamnus spp.
3 Cultivars/Varieties

Rhamnus cathartica

Common Buckthorn, European Buckthorn, Purging Buckthorn
Form Form Purple drupes Purple drupes Fruits in winter Fruits in winter Leaves and flowers Leaves and flowers Underside of leaf Underside of leaf Leaf detail Leaf detail

Rhaphidophora tetrasperma

Dwarf Monstera, Mini Monstera, Monstera Ginny, Philodendron Ginny, Philodendron Piccolo
potted plant with lobed leaves like Monstera deliciosa. potted plant with lobed leaves like Monstera deliciosa. Close-up on lobed leaves like Monstera deliciosa. Close-up on lobed leaves like Monstera deliciosa. Close-up of stem and the petioles which have papery margins. Close-up of stem and the petioles which have papery margins.
1 Cultivar/Variety

Rhaphiolepis indica

Indian Hawthorn
Rhaphiolepis indica Rhaphiolepis indica 'Minor' form 'Minor' form Form Form 'Minor' Full Form 'Minor' Full Form Winter Damage Winter Damage Rhaphiolepis umbellata Rhaphiolepis umbellata
7 Cultivars/Varieties

Rhaphiolepis x delacourii

Indian Hawthorn, Rhaphiolepis
Flowers of 'Enchantress' Flowers of 'Enchantress' Flowers and leaves of 'Enchantress' Flowers and leaves of 'Enchantress' Fruit and leaves Fruit and leaves
4 Cultivars/Varieties

Rhaphiolepis x delacourii Snowcap® 'Corleyscourii'

Flower and Leaves Flower and Leaves

Rhapidophyllum hystrix

Needle Palm, Porcupine Palm
A shrub forming a mound of palmate leaves. A shrub forming a mound of palmate leaves. Color illustrations of the technical details of this species. Color illustrations of the technical details of this species. A shrub forming a mound of palmate leaves. A shrub forming a mound of palmate leaves. Palmate leaves on a long, slender petioles. Palmate leaves on a long, slender petioles. Leaf bases with long, erect, black needle-like spines. Leaf bases with long, erect, black needle-like spines. Cluster of small, white flowers among needle-like spines. Cluster of small, white flowers among needle-like spines.

Rhapis excelsa

Bamboo Palm, Braodleaf Lady Palm, Fan Tufted Palm, Lady Palm
Form Form Panicle bearing small white fruits Panicle bearing small white fruits Native habitat Native habitat stem stem Leaves Leaves

Rhaponticum repens

Russian Knapweed

Rheum rhabarbarum

Pie Plant, Rhubarb
Rheum X cultorum (R. rhaponticum, R. rhabarbarum) Rheum X cultorum (R. rhaponticum, R. rhabarbarum) Rheum X cultorum (R. rhaponticum, R. rhabarbarum) Rheum X cultorum (R. rhaponticum, R. rhabarbarum)

Rhexia alifanus

Savanna Meadow Beauty, Smooth Meadow Beauty
Form Form Close up of flower Close up of flower Leaves Leaves Fruit Fruit Stems and leaves Stems and leaves

Rhexia lutea

Golden Meadow-beauty, Yellow Meadowbeauty
Flowers and buds Flowers and buds Form Form Native habitat Native habitat Leaves and stem Leaves and stem Fruit Fruit

Rhexia mariana

Maryland Meadow Beauty, Pale Meadow Beauty
Rhexia mariana flower with bee Rhexia mariana flower with bee Rhexia mariana flowers Rhexia mariana flowers Rhexia mariana and Ipomoea pandurata in summer in Moore County Rhexia mariana and Ipomoea pandurata in summer in Moore County Rhexia mariana seed pods in late summer Rhexia mariana seed pods in late summer Rhexia mariana flower close up Rhexia mariana flower close up Rhexia mariana in the summer Rhexia mariana in the summer

Rhexia petiolata

Ciliate Meadow-beauty
Flowers Flowers Close up of flower Close up of flower Form Form Leaves and stem Leaves and stem Fruit Fruit

Rhexia virginica

Handsome-harry, Meadow Beauty, Virginia Meadow-beauty
Rhexia virginica Rhexia virginica Rhexia virginica Rhexia virginica Rhexia virginica Rhexia virginica

Rhipsalidopsis gaertneri

Easter Cactus, Holiday Cactus, Whitesun
Schlumbergera gaertneri Schlumbergera gaertneri Schlumbergera gaertneri Schlumbergera gaertneri Schlumbergera gaertneri Schlumbergera gaertneri Schlumbergera gaertneri Schlumbergera gaertneri
3 Cultivars/Varieties

Rhipsalidopsis rosea

Pink Star Cactus, Rose Easter Cactus
Schlumbergera rosea Schlumbergera rosea

Rhipsalis baccifera

Mistletoe Cacti, Mistletoe Cactus, Spaghetti Cactus
Rhipsalis baccifera Rhipsalis baccifera Rhipsalis baccifera Rhipsalis baccifera Rhipsalis baccifera Rhipsalis baccifera Rhipsalis baccifera Rhipsalis baccifera Rhipsalis baccifera Rhipsalis baccifera Rhipsalis baccifera Rhipsalis baccifera
1 Cultivar/Variety

Rhodochiton atrosanguineus

Purple Bell Vine
Rhodochiton atrosanguineus Rhodochiton atrosanguineus Rhodochiton atrosanguineus Rhodochiton atrosanguineus Rhodochiton atrosanguineus Rhodochiton atrosanguineus

Rhododendron

Azalea, Rhododendron, Rosebay
Rhododendron spp. Rhododendron spp. Rhododendron spp. Rhododendron spp. Form Form Rhododendron 'Kurume Hino Crimson' flower and form Rhododendron 'Kurume Hino Crimson' flower and form Rhododendron Festive Rhododendron Festive Rhododendron Rhododendron
49 Cultivars/Varieties

Rhododendron alabamense

Alabama Azalea
Showy white flowers. Showy white flowers. Flowers and leaves. Flowers and leaves. Abundance of flowers that have a lemon scent. Abundance of flowers that have a lemon scent.

Rhododendron arborescens

Smooth Azalea, Sweet Azalea
Rhododendron arborescens Rhododendron arborescens Rhododendron arborescens Rhododendron arborescens Rhododendron arborescens Rhododendron arborescens
3 Cultivars/Varieties

Rhododendron atlanticum

Coastal Azalea, Dwarf Azalea
Rhododendron atlanticum Rhododendron atlanticum leaves leaves Form in flower. Form in flower.

Rhododendron austrinum

Florida Azalea
Rhododendron austrinum Rhododendron austrinum Rhododendron austrinum Rhododendron austrinum Rhododendron austrinum Rhododendron austrinum Rhododendron austrinum Rhododendron austrinum Rhododendron austrinum Rhododendron austrinum
3 Cultivars/Varieties

Rhododendron calendulaceum

Flame Azalea
Rhododendron calendulaceum Rhododendron calendulaceum Rhododendron calendulaceum Rhododendron calendulaceum Rhododendron calendulaceum Rhododendron calendulaceum Rhododendron calendulaceum Rhododendron calendulaceum Rhododendron calendulaceum Rhododendron calendulaceum Rhododendron calendulaceum Rhododendron calendulaceum
4 Cultivars/Varieties

Rhododendron canescens

Hoary Azalea, Mountain Azalea, Piedmont Azalea, Pinxter Flower, Southern Pinxter Azaelea
Flower, stem and leaf Flower, stem and leaf Rhododendron canescens Rhododendron canescens Light pink funnel shaped flowers with showy stamens. Light pink funnel shaped flowers with showy stamens. Rhododendron canescens Rhododendron canescens Showy flowers appear in the spring. Showy flowers appear in the spring. Woodland setting Woodland setting
2 Cultivars/Varieties

Rhododendron catawbiense

Catawba Rhododendron, Mountain Rosebay, Purple Rhododendron, Rose Bay
Rhododendron catawbiense Rhododendron catawbiense Rhododendron catawbiense Rhododendron catawbiense Rhododendron catawbiense Rhododendron catawbiense Rhododendron catawbiense Rhododendron catawbiense Rhododendron catawbiense Rhododendron catawbiense Rhododendron catawbiense 'Boursault' Flower Rhododendron catawbiense 'Boursault' Flower
3 Cultivars/Varieties

Rhododendron catawbiense 'Roseum Elegans'

Rosem Rhododendron
Rhododendron catawbiense 'Roseum Elegans' Rhododendron catawbiense 'Roseum Elegans' Rhododendron catawbiense 'Roseum Elegans' Rhododendron catawbiense 'Roseum Elegans' Rhododendron catawbiense 'Roseum Elegans' Rhododendron catawbiense 'Roseum Elegans' Rhododendron catawbiense 'Roseum Elegans' Rhododendron catawbiense 'Roseum Elegans' Rhododendron catawbiense 'Roseum Elegans' Rhododendron catawbiense 'Roseum Elegans' Rhododendron catawbiense 'Roseum Elegans' Rhododendron catawbiense 'Roseum Elegans'