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Quercus laurifolia

Laurel Oak, Oaks
Form of tree (Pitt County, NC)-Mid Fall Form of tree (Pitt County, NC)-Mid Fall Looking up into the tree (Pitt County, NC)-Mid Fall Looking up into the tree (Pitt County, NC)-Mid Fall Side view of acorn (Pitt County, NC)-Mid Fall Side view of acorn (Pitt County, NC)-Mid Fall Bottom view of acorn (Pitt County, NC)-Mid Fall Bottom view of acorn (Pitt County, NC)-Mid Fall End buds (Pitt County, NC)-Mid Falllia End buds (Pitt County, NC)-Mid Falllia Both sides of leaves (Pitt County, NC)-Mid Fall Both sides of leaves (Pitt County, NC)-Mid Fall

Quercus lobata

Oaks, Valley Oak
Form Form Form Form Trunk and branches Trunk and branches Leaves Leaves Fruit Fruit Quercus lobata Quercus lobata

Quercus lyrata

Oaks, Overcup Oak, Swamp Post Oak, Swamp White Oak, Water White Oak
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

Quercus macrocarpa

Bur Oak, Oaks
Form Form Front and back of leaf (Brighton, NY)-Mid Fall Front and back of leaf (Brighton, NY)-Mid Fall Acorns (Brighton, NY)-Mid Fall Acorns (Brighton, NY)-Mid Fall Structure Structure Leaves Leaves Acorn Acorn
4 Cultivars/Varieties

Quercus margarettae

Dwarf Post Oak, Oaks, Sand Post Oak
Form of tree (Kershaw County, SC)-Early Fall Form of tree (Kershaw County, SC)-Early Fall Whole leaf front and back (Kershaw County, SC)-Early Fall Whole leaf front and back (Kershaw County, SC)-Early Fall Leaf margin (Kershaw County, SC)-Early Fall Leaf margin (Kershaw County, SC)-Early Fall Branch with leaves (Kershaw County, SC)-Early Fall Branch with leaves (Kershaw County, SC)-Early Fall Stem and end buds (Kershaw County, SC)-Early Fall Stem and end buds (Kershaw County, SC)-Early Fall Acorn side view (Kershaw County, SC)-Early Fall Acorn side view (Kershaw County, SC)-Early Fall

Quercus marilandica

Blackjack Oak, Oaks
Form Form Winter form Winter form Leaves Leaves blackjack oak form in spring brunswick nature park skdavidson blackjack oak form in spring brunswick nature park skdavidson Leaf closeup Leaf closeup Fruit Fruit

Quercus michauxii

Basket Oak, Chestnut Oak, Cow Oak, Michaux Oak, Oaks, Swamp Chestnut Oak
Form of tree (Brazoria County, TX)-Early Fall Form of tree (Brazoria County, TX)-Early Fall Form of tree (Brazoria County, TX)-Early Fall Form of tree (Brazoria County, TX)-Early Fall Close-up cap and acorn (Brazoria County, TX)-Early Fall Close-up cap and acorn (Brazoria County, TX)-Early Fall Side view acorn (Brazoria County, TX)-Early Fal Side view acorn (Brazoria County, TX)-Early Fal Bottom view of acorn (Brazoria County, TX)-Early Fall Bottom view of acorn (Brazoria County, TX)-Early Fall Stem buds (Brazoria County, TX)-Early Fall Stem buds (Brazoria County, TX)-Early Fall

Quercus minima

Dwarf Live Oak, Oaks
Form- often in colonies (Glynn County, GA)-Mid Spring Form- often in colonies (Glynn County, GA)-Mid Spring Branches (Glynn County, GA)-Mid Spring Branches (Glynn County, GA)-Mid Spring Stem and female flower (Glynn County, GA)-Mid Spring Stem and female flower (Glynn County, GA)-Mid Spring Spin-tipped lobes and entire margins (Glynn County, GA)-Mid Spri Spin-tipped lobes and entire margins (Glynn County, GA)-Mid Spri Leaves (Glynn County, GA)-Mid Spring Leaves (Glynn County, GA)-Mid Spring Front and back of leaf (Glynn County, GA)-Mid Spring Front and back of leaf (Glynn County, GA)-Mid Spring

Quercus montana

Basket Oak, Chestnut Oak, Oaks, Rock Chestnut Oak, Rock Oak
Form Form acorns acorns Bark Bark Leaves Leaves Leaves Leaves Stem Stem

Quercus muehlenbergii

Chinkapin Oak, Chinquapin Oak, Oaks
Form Form Leaves and acorns (Genesee County, NY)-Early Fall Leaves and acorns (Genesee County, NY)-Early Fall Acorns (Genesee County, NY)-Early Fall Acorns (Genesee County, NY)-Early Fall Branch with leaves (United States)-Early Fall Branch with leaves (United States)-Early Fall Both sides of leaf (United States)-Early Fall Both sides of leaf (United States)-Early Fall Margin of leaf (United States)-Early Fall Margin of leaf (United States)-Early Fall

Quercus myrtifolia

Myrtle Oak
Tree form (Polk County, FL)-Mid Fall Tree form (Polk County, FL)-Mid Fall Branches and leaves (Polk County, FL)-Mid Fall Branches and leaves (Polk County, FL)-Mid Fall Entire margins with bristle tip (Polk County, FL)-Mid Fall Entire margins with bristle tip (Polk County, FL)-Mid Fall End and stem buds (Polk County, FL)-Mid Fall End and stem buds (Polk County, FL)-Mid Fall Bottom view of acorn (Polk County, FL)-Mid Fall Bottom view of acorn (Polk County, FL)-Mid Fall Side view of acorn (Polk County, FL)-Mid Fall Side view of acorn (Polk County, FL)-Mid Fall

Quercus nigra

Black Oak, North American Barren Oak, North American Black Oak, Oaks, Possum Oak, Water Oak
Quercus nigra Quercus nigra Leaf close-up (Greensboro, NC)-Early Fall Leaf close-up (Greensboro, NC)-Early Fall Stem with lenticels and stem bud (Greensboro, NC)-Early Fall Stem with lenticels and stem bud (Greensboro, NC)-Early Fall Paler underside of leaf (Greensboro, NC)-Early Fall Paler underside of leaf (Greensboro, NC)-Early Fall Various leaf shapes (Greensboro, NC)-Early Fall Various leaf shapes (Greensboro, NC)-Early Fall Stem with end and stem buds (Greensboro, NC)-Early Fall Stem with end and stem buds (Greensboro, NC)-Early Fall

Quercus oglethorpensis

Oglethorpe Oak
Form Form Leaves Leaves Bark Bark Fruit Fruit Form in Dec. Form in Dec. Leaf closeup Leaf closeup

Quercus pagoda

Cherry Bark Oak, Cherrybark Oak, Oaks
Form Form Leaves Leaves Quercus pagoda Quercus pagoda Quercus pagoda Quercus pagoda Quercus pagoda Quercus pagoda Quercus pagoda Quercus pagoda

Quercus palustris

Oaks, Pin Oak, Swamp Oak, Swamp Spanish Oak
Form, in the early fall. Form, in the early fall. Male flowers, called catkins male flowers droopy beads Male flowers, called catkins male flowers droopy beads Close up of leaf Close up of leaf The catkins look like dangling bead like strings The catkins look like dangling bead like strings Quercus palustris Quercus palustris Leaves - Warren Co., NC Leaves - Warren Co., NC
1 Cultivar/Variety

Quercus petraea

Cornish Oak, Durmast Oak, Irish Oak, Oaks, Sessile Oak
Form Form Fruit and leaves Fruit and leaves Side view of acorn Side view of acorn Underside of leaf Underside of leaf Bark and leaf Bark and leaf End buds End buds
1 Cultivar/Variety

Quercus phellos

Willow Oak
Large tree with rounded canopy, growing in a park. Large tree with rounded canopy, growing in a park. Narrow, willow-like leaves. Narrow, willow-like leaves. Leafy shoot bearing narrow, willow-like leaves. Leafy shoot bearing narrow, willow-like leaves. Large tree with rounded canopy bare of leaves. Large tree with rounded canopy bare of leaves. Gray, ridged bark. Gray, ridged bark. Stem with pointed axillary buds. Stem with pointed axillary buds.
1 Cultivar/Variety

Quercus prinoides

Dwarf Chestnut Oak, Dwarf Chinquapin Oak, Oaks
Form- Arnold Arboretum Form- Arnold Arboretum Leaves Leaves Bark Bark Stem and buds Stem and buds

Quercus robur

Common Oak, English Oak, European Oak, French Oak, Pedunculate Oak, Polish Oak, Truffle Oak
Form Form Winter form Winter form Leaves Leaves Acorn Acorn Male flowers Male flowers Terminal buds Terminal buds
3 Cultivars/Varieties

Quercus robur 'Fastigiata'

Columnar English Oak, Cypress Oak, Pyramid Oak, Upright English Oak
Tree Line Tree Line Quercus robur 'Fastigiata' Quercus robur 'Fastigiata' Winter form Winter form

Quercus rubra

American Red Oak, Eastern Red Oak, Mountain Red Oak, Northern Red Oak, Oaks, Red Oak
Full Form Full Form Acorn Acorn dangling male catkins with emerging red leaves dangling male catkins with emerging red leaves Front and back of leaves (Greensboro, NC)-Mid Fall Front and back of leaves (Greensboro, NC)-Mid Fall Side view of acorns (Greensboro, NC)-Mid Fall Side view of acorns (Greensboro, NC)-Mid Fall End buds (Greensboro, NC)-Mid Fall End buds (Greensboro, NC)-Mid Fall
2 Cultivars/Varieties

Quercus shumardii

Oaks, Shumard Oak, Shumard's Oak
Form Form Fruit and Leaf Fruit and Leaf Fall Color Form Fall Color Form Quercus shumardii Quercus shumardii Leaves Leaves Acorns Acorns

Quercus sinuata var. sinuata

Form of tree (Pickens County, AL)-Mid Fall Form of tree (Pickens County, AL)-Mid Fall Looking up through the tree (Pickens County, AL)-Mid Fall Looking up through the tree (Pickens County, AL)-Mid Fall side view of acorns (Pickens County, AL)-Mid Fall side view of acorns (Pickens County, AL)-Mid Fall End buds (Pickens County, AL)-Mid Fall End buds (Pickens County, AL)-Mid Fall Leaf margin (Pickens County, AL)-Mid Fall Leaf margin (Pickens County, AL)-Mid Fall Front and back of leaves (Pickens County, AL)-Mid Fall Front and back of leaves (Pickens County, AL)-Mid Fall

Quercus stellata

Oaks, Post Oak
Quercus stellata, tree Quercus stellata, tree Quercus stellata Quercus stellata Front and back of leaf (Greensboro, NC)-Mid Fall Front and back of leaf (Greensboro, NC)-Mid Fall Close-up of leaf (Greensboro, NC)-Mid spring Close-up of leaf (Greensboro, NC)-Mid spring Stem buds (Greensboro, NC)-Mid spring Stem buds (Greensboro, NC)-Mid spring Side view of acorn (Greensboro, NC)-Mid Fall Side view of acorn (Greensboro, NC)-Mid Fall

Quercus suber

Cork Oak, Cork Tree, Oaks
Quercus suber Quercus suber Form Form Quercus suber Quercus suber Leaves Leaves Fruit Fruit Quercus suber Quercus suber

Quercus texana

Nuttall Oak, Oaks, Shumard Oak, Texas Red Oak
Form Form Leaves Leaves Leaf close up Leaf close up Fall Color Form Fall Color Form Fruit and Fall Color Leaf Fruit and Fall Color Leaf Under Leaf Under Leaf
1 Cultivar/Variety

Quercus variabilis

Chinese Cork Oak, Oaks, Oriental Oak
Form Form Leaves Leaves Bark Bark Terminal buds Terminal buds Spring Catkins showing on the upright form Spring Catkins showing on the upright form Dropping, slender strings known as catkins Dropping, slender strings known as catkins

Quercus velutina

Black Oak, Eastern Black Oak, Yellow Oak
Form Form Underside of leaf Underside of leaf Leaves with bristle tipped lobes Leaves with bristle tipped lobes Underside of leaf with short white hairs in VA Underside of leaf with short white hairs in VA Tufts of hair at rib juncture- May in NC Tufts of hair at rib juncture- May in NC Leaves in Sept. in PA Leaves in Sept. in PA

Quercus virginiana

Bay Live Oak, Live Oak, Oaks, Plateau Oak, Scrub Oak, Southern Live Oak
Form of mature tree (Seminole County, GA)-Late Spring Form of mature tree (Seminole County, GA)-Late Spring Large mature tree (Seminole County, GA)-Late Spring Large mature tree (Seminole County, GA)-Late Spring Mature trunk (Seminole County, GA)-Late Spring Mature trunk (Seminole County, GA)-Late Spring Mature trunk (Seminole County, GA)-Late Spring Mature trunk (Seminole County, GA)-Late Spring Quercus virginiana Quercus virginiana Quercus virginiana Quercus virginiana

Quercus x bushii

Bush Oak
Form of tree (Moore County, NC)-Early Fall Form of tree (Moore County, NC)-Early Fall Branches with leaves (Moore County, NC)-Early Fall Branches with leaves (Moore County, NC)-Early Fall Front and back of leaves (Moore County, NC)-Early Fall Front and back of leaves (Moore County, NC)-Early Fall Lobed margins (Moore County, NC)-Early Fall Lobed margins (Moore County, NC)-Early Fall End buds (Moore County, NC)-Early Fall End buds (Moore County, NC)-Early Fall Side view of acorns (Moore County, NC)-Early Fall Side view of acorns (Moore County, NC)-Early Fall
1 Cultivar/Variety

Quercus x caduca

Hybrid Oak
Gray ridged bark (Moore County, NC)-Early Fall Gray ridged bark (Moore County, NC)-Early Fall Leaves (Moore County, NC)-Early Fall Leaves (Moore County, NC)-Early Fall Front and back of leaf (Moore County, NC)-Early Fall Front and back of leaf (Moore County, NC)-Early Fall Underside of leaf (Moore County, NC)-Early Fall Underside of leaf (Moore County, NC)-Early Fall Leaf closeup (Moore County, NC)-Early Fall Leaf closeup (Moore County, NC)-Early Fall Brown stem with leaves and acorn (Moore County, NC)-Early Fall Brown stem with leaves and acorn (Moore County, NC)-Early Fall

Quercus x comptoniae

Bark Bark Tree Tree Growth Habit Growth Habit Leaves and Fruit Leaves and Fruit

Quercus x drummondii

Drummond Post Oak, False Sand Post Oak
Tree form (Bastrop, TX)-Early Fall Tree form (Bastrop, TX)-Early Fall Trunk and branches (Bastrop, TX)-Early Fall Trunk and branches (Bastrop, TX)-Early Fall Lobed margins (Bastrop, TX)-Early Fall Lobed margins (Bastrop, TX)-Early Fall Front and back of leaves (Bastrop, TX)-Early Fall Front and back of leaves (Bastrop, TX)-Early Fall Stem and end buds (Bastrop, TX)-Early Fall Stem and end buds (Bastrop, TX)-Early Fall Side view of acorn (Bastrop, TX)-Early Fall Side view of acorn (Bastrop, TX)-Early Fall

Quercus x garlandensis

Garland's Oak, Hybrid Oak
Form of tree (Greensboro, NC)-Early Fall Form of tree (Greensboro, NC)-Early Fall Lobed green leaves (Greensboro, NC)-Early Fall Lobed green leaves (Greensboro, NC)-Early Fall Various leaf shapes (Greensboro, NC)-Early Fall Various leaf shapes (Greensboro, NC)-Early Fall Various leaf shapes (Greensboro, NC)-Early Fall Various leaf shapes (Greensboro, NC)-Early Fall Underside of leaf with hairs (Greensboro, NC)-Early Fall Underside of leaf with hairs (Greensboro, NC)-Early Fall Stem with end and stem buds (Greensboro, NC)-Early Fall Stem with end and stem buds (Greensboro, NC)-Early Fall

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
Single, ternate leaf with lobed leaflets. Hairy stem. Single, ternate leaf with lobed leaflets. Hairy stem. Sepals are reflexed & petals are spreading & yellow. Stems hairy Sepals are reflexed & petals are spreading & yellow. Stems hairy Five, glossy yellow petals, many stamens & many green carpels. Five, glossy yellow petals, many stamens & many green carpels. e;jiw ejtw e;jiw ejtw Pink buttercup flowers with many free carpels. Pink buttercup flowers with many free carpels. White flowers popping above the surface of water. White flowers popping above the surface of water.
6 Cultivars/Varieties

Ranunculus acris

Bitter Buttercup, Buttercup, Common Buttercup, Meadow Buttercup, Tall Buttercup
Portrait of bowl-shaped yellow flowers with many stamens. Portrait of bowl-shaped yellow flowers with many stamens. Portrait of bowl-shaped yellow flowers with many stamens. Portrait of bowl-shaped yellow flowers with many stamens. Stem showing deeply lobed hear-shaped leaves & a basal rosette Stem showing deeply lobed hear-shaped leaves & a basal rosette Hand cradling the inverted leaf to show venation & hairs. Hand cradling the inverted leaf to show venation & hairs. View across a meadow with 100s of yellow flowers. View across a meadow with 100s of yellow flowers. Dozens of yellow flowers seem to float above the flower bed. Dozens of yellow flowers seem to float above the flower bed.
1 Cultivar/Variety

Ranunculus asiaticus

Persian Buttercup, Ranunculus
Fully double flowers in shades of purple, yellow and orange. Fully double flowers in shades of purple, yellow and orange. Bed of fully double flowers in shades of white, pink & orange. Bed of fully double flowers in shades of white, pink & orange. Semi-double flowers in shades of yellow and orange. Semi-double flowers in shades of yellow and orange. Front view of a pink, fully double, rose-like flower Front view of a pink, fully double, rose-like flower Back view of a pink, double flower showing five sepals. Back view of a pink, double flower showing five sepals. Orange fully double flowers and highly dissected foliage. Orange fully double flowers and highly dissected foliage.

Ranunculus ficaria

Dusky Maiden, Fig Buttercup, Lesser Celandine, Lesser Crowfoot, Pilewort
Ground covered with the plant and many yellow flowers. Ground covered with the plant and many yellow flowers. A cluster of yellow flowers with many petals. A cluster of yellow flowers with many petals. Close up of flower showing many petals and stamens Close up of flower showing many petals and stamens Arrow-shaped leaves Arrow-shaped leaves Fingers showing underside of cordate leaf. Fingers showing underside of cordate leaf. Excavated roots bearing clusters of finger-like tubers Excavated roots bearing clusters of finger-like tubers

Ranunculus flammula

Creeping Spearwort, Greater Creeping Spearwort, Miniature Spearwort
Ranunclus flammula Ranunclus flammula Ranunclus flammula Ranunclus flammula Ranunclus flammula Ranunclus flammula Ranunclus flammula Ranunclus flammula Hand holding a small plant with ovate to lanceolate leaves Hand holding a small plant with ovate to lanceolate leaves

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

Ranunculus septentrionalis

Carolina Buttercup
Close-up of a bright yellow, bowl-shaped flower with 5 petals Close-up of a bright yellow, bowl-shaped flower with 5 petals Foliage and yellow, 5-petaled flowers. Foliage and yellow, 5-petaled flowers. Foliage and yellow, 5-petaled flowers. Foliage and yellow, 5-petaled flowers.

Raphanus raphanistrum

Rabano de Maleza, Wild Radish
Form in November in British Columbia, Canada Form in November in British Columbia, Canada Leaves and stem in November in British Columbia, Canada Leaves and stem in November in British Columbia, Canada Flowers in November in Wellington County, New Zealand Flowers in November in Wellington County, New Zealand Flower close-up in November in Marin County, California Flower close-up in November in Marin County, California

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

Columnar Prairie Coneflower, Long-headed Coneflower, Mexican Hat, Prairie Coneflower
Inflorescence with red-brown ray florets & yellow disk florets. Inflorescence with red-brown ray florets & yellow disk florets. Inflorescence with yellow ray florets & yellow disk florets. Inflorescence with yellow ray florets & yellow disk florets. daisy-like flower with reddish "petals" and an elongate "eye" daisy-like flower with reddish "petals" and an elongate "eye" Inflorescence with yellow ray florets & dark disk florets Inflorescence with yellow ray florets & dark disk florets flowers growing in prairie. Inflorescence disk elongate. flowers growing in prairie. Inflorescence disk elongate.

Ratibida pinnata

Drooping Coneflower, Gray-headed Coneflower, Grey-headed Coneflower, Pinnate Prairie Coneflower, Prairie Coneflower, Yellow Coneflower
pinnate foliage and heads with yellow disk flowers. pinnate foliage and heads with yellow disk flowers. Heads with drooping ray flowers and dark disk flowers. Heads with drooping ray flowers and dark disk flowers. Plant with basal pinnate leaves & heads on tall stalks. Plant with basal pinnate leaves & heads on tall stalks. A group of heads with yellow rays and dark disk flowers. A group of heads with yellow rays and dark disk flowers. 2 heads with yellow, drooping rays & dark disks. 2 heads with yellow, drooping rays & dark disks. Brown, elongate spheroid heads. Brown, elongate spheroid heads.
1 Cultivar/Variety