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Local Flora > Lab exam 4 - twigs > Flashcards

Lab exam 4 - twigs Flashcards

1
Q

Beech

A

Fagaceae Fagus grandifolia

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2
Q

Pale Dogwood

A

Cornaceae Cornus amomum

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3
Q

Beech twig characteristics

A

terminal & lateral scaled buds are long thorn-looking spires, coming off main twig or at terminus of short stems

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4
Q

Red Maple

A

Aceraceae Acer Rubrum

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5
Q

Eastern Cottonwood

A

Salicaceae Populus deltoides

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6
Q

Eastern Cottonwood twig characteristics

A

star-shaped pith

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7
Q

Red maple twig characteristics

A

light grey bark, many round scaled buds at multiple termini, if lateral buds present held very close to the stem & very small

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8
Q

Pale Dogwood twig characteristics

A

red bark, leaf scars opposite

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9
Q

Silver Maple

A

Aceraceae Acer saccharinum

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10
Q

Silver Maple twig characteristics

A

brown/red bark, many round scaled buds at multiple termini, if lateral buds present held very close to the stem & very small

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11
Q

River Birch

A

Betulaceae Betula nigra

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12
Q

River Birch twig characteristics

A

twin shingled spire terminal buds

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13
Q

Glossy Buckthorn

A

Rhamnaceae Frangula alnus

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14
Q

Glossy Buckthorn twig characteristics

A

miniscule/near invisible leaf scars, terminal buds very small wooly

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15
Q

Black Cherry

A

Rosaceae Prunus serotina

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16
Q

Pin Oak twig identification

A

grey twig w/lateral branches, many pointed termini buds, dew-claw buds

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17
Q

Apple

A

Rosaceae Malus spp.

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18
Q

Apple twig identification

A

spurs (thick node-like bud stalks)

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19
Q

Pussy Willow

A

Salicaceae Salix discolor

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20
Q

Pussy Willow twig characteristics

A

thick acorn-like (in color & shine) lateral buds, some lateral buds (especially near the top) are much smaller

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21
Q

Tree of Heaven

A

Simaroubaceae Ailanthus altissima

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22
Q

Tree of Heaven twig identification

A

thickest twig in collection, odor near cut, huge leaf scars, near flat round buds

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23
Q

White Ash

A

Oleaceae Fraxinus americana

24
Q

White Ash twig characteristics

A

thin prehensile looking grabbing branch

25
Q

Cucumber tree

A

Magnoliaceae Magnolia acuminata

26
Q

Cucumber tree twig identification

A

red bark, white-grey/green terminal buds

27
Q

Pin Oak

A

Fagaceae Quercus palustris

28
Q

Black Cherry twig identification

A

deep red bark, grey towards the end, several branchlets, small buds very red,

29
Q

Pawpaw

A

Annonaceae Asimina triloba

30
Q

Pawpaw twig identification

A

round dark ultra wooly buds , no branches

31
Q

Black Walnut

A

Juglandaceae Juglans nigra

32
Q

Black Walnut twig identification

A

chambered pith, thick twig, wooly white buds, lateral smaller than terminal buds

33
Q

Black Oak

A

Fagaceae Quercus velutina

34
Q

Black Oak twig identification

A

white wooly multiple terminal buds, all buds approximately the same size

35
Q

Tulip Tree

A

Magnoliaceae Liriodendron tulipifera

36
Q

Tulip tree twig identification

A

very dark brown bark, round leaf scars, green smooth-looking bud

37
Q

basswood

A

Tiliaceae Tilia americana

38
Q

Basswood twig identification

A

all buds small, acorn red; similar color bark after node, lateral buds point away from stem

39
Q

Butternut

A

Juglandaceae Juglans cinerea

40
Q

Butternut twig identification

A

chambered pith, large wooly terminal bud & smaller lateral buds, many wide thin leaf scars w/ lobes pointing away from bud, u shaped bundle scars

41
Q

Slippery Elm

A

Ulmaceae Ulmus rubra

42
Q

Slippery elm twig identification

A

dark grey before node, red after node; branchlet with many buds, buds small black w/red tips

43
Q

Black Tupelo

A

Nyssaceae Nyssa sylvatica

44
Q

Black Tupelo twig identification

A

pale tan/white bark, very small buds & leaf scars

45
Q

Quaking Aspen

A

Salicaceae Populus tremuloides

46
Q

Quaking Aspen twig identification

A

grey bark w/red undertone before node, red after node, very pointy small red lateral buds, thicker stubby scaled terminal buds

47
Q

Sassafras

A

Lauraceae Sassafras albidum

48
Q

Sassafras twig identification

A

green bark, wintergreen smell & taste

49
Q

Shagbark Hickory

A

Juglandaceae Carya ovata

50
Q

Shagbark Hickory twig identification

A

brown bark w/orange lenticels, white wooly terminal bud, lateral buds get bigger towards terminal, obvious leaf scars w/many bundle scars

51
Q

Flowering dogwood

A

Cornaceae Cornus florida

52
Q

Flowering dogwood twig identification

A

stem splits in multiple branchlets, all buds terminal, some spine-like some flat round & shingle scaled

53
Q

Witch Hazel

A

Hamamelidaceae Hamamelis virginiana

54
Q

Witch Hazel twig identification

A

yellow flower strings?

55
Q

Black Locust

A

Fabaceae Robinia pseudoacaial

56
Q

Black Locust twig identification

A

thorns, brown-red new growth bark

Local Flora (6 decks)

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