FOR 232 twig exam

Nannyberry

Adoxaceae

Viburnum lentago

Long, lanceolate terminal bud (looks like a scorpion's stinger)

Staghorn sumac

Anacardiaceae

Rhus typhina

Very pubescent

Thick twig

Northern catalpa

Bignoniaceae

Catalpa speciosa

Whorled

No terminal bud

Thick twig

Yellow birch

Betulaceae

Betula alleghaniensis

Haired margins on bud scales

Spur shoots

Wintergreen smell

Paper birch

Betulaceae

Betula papyrifera

Slightly gummy buds

Spur shoots on older growth

Gray birch

Betulaceae

Betula populifolia

Warty raised lenticels

Usually single male catkin toward twig end

Musclewood

Betulaceae

Carpinus Caroliniana

Lined buds

Tag alder

Betulaceae

Alnus incanus

Triangular pith

Stalked buds

Light lenticels

American hazelnut

Betulaceae

Corylus Americana

Fine hairs

Blunt, tiny buds

Dark scales at base of bud

Ironwood

Betulaceae

Ostrya virginiana

Triplet catkins at twig end

Small, ovate buds

Hackberry

Cannabaceae

Celtics occidentalis

Oppressed buds

Pubescent buds

Pseudo terminal bud

Alternate leaves dogwood

Cornaceae

Cornus alternifolia

Smooth, narrow leaf scars

Round, tiny terminal buds

Red/dark purple bud

Silky dogwood

Cornaceae

Cornus amomum

Silky grey haired buds

Salmon pink pith

Oppressed buds

Grey dogwood

Cornaceae

Cornus racemosa

Frosted tip buds

Pyramidal umbels

Red stemmed dogwood

Cornaceae

Cornus sericea

Raised white lenticels

White pith

Black locust

Fabaceae

Robinia pseudoacacia

No clear bud

Paired stipular thorns

American beech

Fagaceae

Fagus grandiflora

Very long, sharp buds

Buds look rolled

White oak

Fagaceae

Quercus Alba

Shiny

Round buds

Swamp white oak

Fagaceae

Quercus bicolor

Short, blunt buds

Light brown

Brown buds

Bur oak

Fagaceae

Quercus macrocarpa

Corky ridges

Pubescent buds

Northern red oak

Fagaceae

Quercus rubra

Plump terminal buds

Red-brown buds

Shiny

Northern Pin oak

Fagaceae

Quercus ellipsoidalis

Hairy young twig

Small, angled buds

Gingko

Gingkoaceae

Gingko biloba

Spur shoots

Reddish brown, turns grey

Witch-hazel

Hamamelidaceae

Hamamelis virginiana

Fine pubescens

Buds look like a deer foot

Butternut

Juglandaceae

Juglans cinerea

Smiley leaf scar

Dark chambered pith

Black walnut

Juglandaceae

Juglans nigra

Screaming bud

Cream chambered pith

Bitternut hickory

Juglandaceae

Carya cordiformis

Yellow bud

Velvate terminal bud

Shagbark hickory

Juglandaceae

Carya ovata

Large, pubescent terminal bud

Raised leaf scars

Tulip poplar

Magnoliaceae

Liriodendron tulipifera

Duck bill bud

Smells spicy

Stipules leave ring around leaf scar

White ash

Oleaceae

Fraxinus Americana

Half moon leaf scar

Stout, grey-green twigs

Black ash

Oleaceae

Fraxinus nigra

Big, circular leaf scar

Brownish-black buds

Green ash

Oleaceae

Fraxinus Pennsylvanica

D shaped leaf scar

New growth slightly pubescent

Tamarack

Pinaceae

Larix laricina

Very slender

Lots of spur shoots

Glossy buckthorn

Rhamnaceae

Frangula alnus

Tan and fuzzy buds

Grey, rectangular vertical lenticels

European buckthorn

Rhamnaceae

Rhamnus cathartica

Tipped with thorn

Ovate, reddish, oppressed bud

Pin cherry

Rosaceae

Prunus pensylvanica

Buds cluster at end of twig

Shiny, red new twigs

Tiny round buds

Black cherry

Rosaceae

Prunus serotina

Two tone, green and brown buds

Small, semi-circle scars

Choke cherry

Rosaceae

Prunus virginiana

Small, tan-brown buds

Prominent lenticels

Serviceberry

Rosaceae

Amelanchier spp.

Pointed, twisted buds

Slender, flexible twigs

Prickly ash

Rutaceae

Zanthoxylum americanum

Stipular thorns

Wooly, reddish brown buds

Smells like citrus

Cottonwood

Salicaceae

Populus deltoids

Sticky, shiny buds

Yellowish-brown twig

Terminal bud scaley

Big-toothed aspen

Salicaceae

Populus grandidentata

Raised, heart shaped leaf scars

Fine pubescens

Quaking aspen

Salicaceae

Populus tremuloides

Shiny, dry buds

Dark brown-black buds

Willow

Salicaceae

Salix spp.

No terminal bud

Oppressed, naked buds

Boxelder

Sapindaceae

Acer negundo

Ovoid terminal bud

White, hairy bud

Norway maple

Sapindaceae

Acer platanoides

Plump, round, greenish purple buds

Smooth, shiny twig

Red maple

Sapindaceae

Acer rubrum

V shaped leaf scars

No odor

Silver maple

Sapindaceae

Acer saccharinum

Round buds

Stinky

Sugar maple

Sapindaceae

Acer saccharum

Pointed, scaley bud

Slender, shiny twig

Ohio buckeye

Sapindaceae

Aesculus glabra

Orange-brown bud

Dry bud

Horsechestnut

Sapindaceae

Aesculus hippocastanum

Ovoid, sticky buds

Bundle scars on edge of scar

American basswood

Tiliaceae

Tilia Americana

False terminal bud

Greenish-reddish, plump bud

American elm

Ulmaceae

Ulmus Americana