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Forestry: The 100 Twig Test
100 twigs...100 species
100
Biology
Undergraduate 3
11/29/2011

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Cards

Term

sugar maple

 

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Definition

ACERACEAE

Acer saccharum

 

brown, pointy, imbricate buds

light brown twig

Term

red maple

 

[image]

Definition

ACERACEAE

Acer rubrum

 

rounded, dark red, imbricate buds

dark red twig

Term

Norway maple

 

 [image]

Definition

ACERACEAE

Acer platinoides

 

large, rounded, dark red buds

twig shiny, scarred

Term

silver maple

 

[image]

Definition

ACERACEAE

Acer sacharinum

 

small, rounded, red buds

reddish brown twig

Term

mountain maple

 

[image]

 

Definition

ACERACEAE

Acer spicatum

 

pale reddish, pubescent twig and buds

buds valvate

Term

striped maple

 

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Definition

ACERACEAE

Acer pensylvanicum

 

large, dark reddish, valvate buds

greenish twig

Term

box elder

 

 [image]

Definition

ACERACEAE

Acer negundo

 

smooth, shiny brown twig

small, appressed buds

Term

green ash

 

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Definition

OLEACEAE

Fraxinus pensylvanica

 

bud sits on flat top of leaf scar

Term

white ash

 

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Definition

OLEACEAE

Fraxinus americana

 

bud sits in curved top of leaf scar

Term

black ash

 

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Definition

OLEACEAE

Fraxinus nigra

 

bud sits on flat top of leaf scar

bud darker

Term

lilac

 

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Definition

OLEACEAE

Syringia vulgaris

Term

alternate-leaf dogwood

 

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Definition

CORNACEAE

Cornus alternifolia

Term

silky dogwood

 

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Definition

CORNACEAE

Cornus amomum

 

silky pubescence

Term

red-osier dogwood

 

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Definition

CORNACEAE

Cornus stolonifera

Term

red-panicle dogwood

 

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Definition

CORNACEAE

Cornus racemosa

Term

honeysuckle

 

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Definition

CAPRIFOLIACEAE

Lonicera sp.

 

buds very divergent

Term

elderberry

 

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Definition

CAPRIFOLIACEAE

Sambucus sp.

Term

maple-leaf viburnum

 

[image]

Definition

CAPRIFOLIACEAE

Viburnum acerifolia

Term

hobblebush

 

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Definition

CAPRIFOLIACEAE

Viburnum alnifolium

 

light brown, pubescent alien finger buds

Term

nannyberry

 

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Definition

CAPRIFOLIACEAE

Viburnum lentago

 

long, flexible buds

same color as twig

Term

highbush cranberry

 

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Definition

CAPRIFOLIACEAE

Viburnum trilobum

Term

horsechestnut

 

[image]

 

 

Definition

HIPPOCASTANACEAE

Aesculus hippocastanum

Term

common buckthorn

 

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Definition

RHAMNACEAE

Rhamnus cathartica

 

terminal bud not naked

Term

glossy buckthorn

 

[image]

Definition

RHAMNACEAE

Rhamnus frangula

 

terminal bud naked

Term

mountain holly

 

[image]

 

 

Definition

AQUIFOLIACEAE

Nemopanthus mucronata

Term

winterberry

 

[image]

Definition

AQUIFOLIACEAE

Ilex verticillata

Term

partridge berry

 

[image]

 

Definition

RUBIACEAE

Mitchella repens

 

evergreen leaves

light green veins

red berry

Term

staghorn sumac

 

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Definition

ANACARDIACEAE

Rhus typhina

 

twig and bud very pubescent

Term

barberry

 

 [image]

Definition

BERBERIDACEAE

Berberis sp.

 

elongated red berry

small, divergent needles

Term

bittersweet

 

[image] 

Definition

CELASTRACEAE

Celastrus scandens

 

persistent panicle of red berries (dried)

Term

northern burning bush

 

[image]

Definition

CELASTRACEAE

Euonymus alatus

 

wings

Term

black locust

 

[image] 

Definition

FABACEAE

Robinia pseudoacacia

 

"woody" twig

large, very divergent thorns

Term

witch hazel

 

[image]

Definition

HAMAMELIDACEAE

Hamamelis virginiana

 

light brown deer foot bud

Term

yellow birch

 

[image]

Definition

BETULACEAE

Betula alleghaniensis

 

wintergreen scent

Term

sweet birch

 

[image]

Definition

BETULACEAE

Betula lenta

 

root beer scent

Term

paper birch

 

[image]

Definition

BETULACEAE

Betula papyrifera

Term

gray birch

 

[image]

Definition

BETULACEAE

Betula populiafolia

Term

ironwood

 

[image]

Definition

BETULACEAE

Ostrya virginiana

Term

musclewood

 

[image]

Definition

BETULACEAE

Carpinus caroliniana

Term

speckled alder

 

[image]

Definition

BETULACEAE

Alnus rugosa

 

big, red boxing glove buds

Term

beaked hazelnut

 

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Definition

BETULACEAE

Corylus conuta

 

white pubescence on tip o fbud = bunny tail

Term

blueberry

 

 [image]

Definition

ERICACEAE

Vaccinium sp.

 

bright green new growth

whiskers on buds

Term

huckleberry

 

[image]

Definition

ERICACEAE

Gaylussacia sp.

Term

rhododendron

 

[image]

Definition

ERICACEAE

Rhododendron sp.

 

large, ovate, evergreen leaves

Term

rhodora

 

[image]

Definition

ERICACEAE

Rhododendron canadense

 

persistent fruit capsule

Term

sheep laurel

 

[image]

Definition

ERICACEAE

Kalmia angustifolia

 

smaller rhododendron leaves

Term

wintergreen

 

[image]

Definition

ERICACEAE

Gaultheria procumbens

 

wintergreen scent

oval, evergreen leaves

red berry

Term

American beech

 

[image]

 

Definition

FAGACEAE

Fagus grandifolia

 

long, pointy, divergent buds

Term

northern red oak

 

[image]

Definition

FAGACEAE

Quercus rubra

 

clumped buds

large, pointed

dull, reddish

Term

black oak

 

[image]

Definition

FAGACEAE

Quercus velutina

 

clumped buds

large, pointed

dull, light brown

Term

white oak

 

[image]

Definition

FAGACEAE

Quercus alba

 

clumped buds

small, rounded

dull, light brown

Term

pin oak

 

[image]

Definition

FAGACEAE

Quercus palustris

 

clumped buds

small, rounded

shiny, reddish

Term

black walnut

 

[image]

Definition

JUGLANDACEAE

Juglans nigra

 

shorter monkey face

1 bud on top = tikka

Term

butternut

 

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Definition

JUGLANDACEAE

Juglans cinerea

 

longer monkey face

2 buds on top = fancy hat

Term

shagbark hickory

 

[image]

Definition

JUGLANDACEAE

Carya ovata

 

dark brown twig

brown buds

Term

bitternut hickory

 

[image]

Definition

JUGLANDACEAE

Carya cordiformis

 

gin and tonic scent

light brown twig

yellowish buds

Term

tulip poplar

 

[image]

 

 

Definition

MAGNOLIACEAE

Liriodendron tulipifera

 

valvate duck bill bud

Term

black tupelo

 

[image]

 

Definition

NYSSACEAE

Nyssa sylvatica

Term

sweetfern

 

[image]

 

 

Definition

MYRICACEAE

Comptonia peregrina

 

basil scent

Term

sweet gale

 

[image]

Definition

MYRICACEAE

Myrica gale

 

zebra buds

Term

raspberry

 

[image]

 

Definition

ROSACEAE

Rubus sp.

 

thorns

red, rounded canes

 

Term

blackberry

 

[image]

Definition

ROSACEAE

Rubus sp.

 

thorns

green, angled canes

Term

purple-flowering raspberry

 

[image]

Definition

ROSACEAE

Rubus oderatus

 

lots of tiny thorns

light brown twig

Term

black cherry

 

[image]

Definition

ROSACEAE

Prunus serotina

Term

choke cherry

 

[image]

Definition

ROSACEAE

Prunus virginiana

Term

pin cherry

 

[image]

Definition

ROSACEAE

Prunus pensylvanica

Term

rose

 

[image]

Definition

ROSACEAE

Rosa sp.

 

thorns

persisten hypanthium

Term

hawthorn

 

[image]

Definition

ROSACEAE

Cratagus sp.

 

big, scary thorns

Term

meadowsweet

 

[image]

Definition

ROSACEAE

Spiraea latifolia

 

slender, light brown twig

tiny light brown buds

Term

wild pear

 

[image]

Definition

ROSACEAE

Pyrus communis

 

lots of spur shoots

Term

apple

 

[image]

Definition

ROSACEAE

Malus pumila

Term

serviceberry

 

[image]

Definition

ROSACEAE

Amelanchier sp.

Term

eastern cottonwood

 

[image]

Definition

SALICACEAE

Populus deltoides

Term

quaking aspen

 

[image]

Definition

SALICACEAE

Populus tremuloides

Term

bigtooth aspen

 

[image]

Definition

SALICACEAE

Populus grandidentata

Term

shrub willow

 

[image]

Definition

SALICACEAE

Salix sp.

Term

black willow

 

[image]

Definition

SALICACEAE

Salix nigra

Term

leatherwood

 

[image]

 

Definition

THYMELAEACEAE

Dirca palustris

 

leaf scar encircles bud

twig very flexible

Term

slippery elm

 

[image]

Definition

ULMACEAE

Ulmes rubra

 

dark, mouse turd buds

Term

American elm

 

[image]

Definition

ULMACEAE

Ulmes americana

 

reddish, mouse turd buds

Term

hackberry

 

[image]

Definition

ULMACEAE

Celtis occidentalis

Term

basswood

 

[image]

Definition

TILIACEAE

Tilia americana

Term

little-leaf linden

 

[image]

Definition

TILIACEAE

Tilia cordata

Term

Virginia creeper

 

[image]

 

 

Definition

VITACEAE

Parthenocissus quinquefolia

 

vine

Term

grape

 

[image]

Definition

VITACEAE

Vitus sp.

 

vine

Term

eastern white pine

 

[image]

Definition

PINACEAE

Pinus strobus

 

fascicles of 5

Term

red pine

 

[image]

Definition

PINACEAE

Pinus resinosa

 

fascicles of 2

needles not flexible

twig slender, reddish

 

Term

Scotch pine

 

[image]

Definition

PINACEAE

Pinus sylvestris

 

fascicles of 2

twig slender, light brown

Term

Austrian pine

 

[image]

Definition

PINACEAE

Pinus nigra

 

fascicles of 2

twig thick

Term

pitch pine

 

[image]

Definition

PINACEAE

Pinus rigida

 

fascicles of 3

Term

eastern hemlock

 

[image]

Definition

PINACEAE

Tsuga canadensis

Term

balsam fir

 

[image]

Definition

PINACEAE

Abies balsamea

Term

eastern larch

 

[image]

Definition

PINACEAE

Larix laricina

Term

Norway spruce

 

[image]

Definition

PINACEAE

Picea abies

 

darker green

longer needles

Term

white spruce

 

[image]

Definition

PINACEAE

Picea glauca

 

darker green

shorter needles

Term

blue spruce

 

[image]

Definition

PINACEAE

Picea pungens

 

lighter green

longer needles

Term

black spruce

 

[image]

Definition

PINACEAE

Picea mariana

 

lighter green

shorter needles

Term

Canada yew

 

[image]

Definition

TAXACEAE

Taxus canadensis

Term

northern white cedar

 

[image]

Definition

CUPRESSACEAE

Thuja occidentalis

 

scales

flat

Term

eastern red cedar

 

[image]

Definition

CUPRESSACEAE

Juniperus virginiana

 

awls

not flat

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