Lab 5

Front 1

Acer rubrum - red maple

Back 1

"medium tree 20-60 tall; leaves opposite, 3-5 lobed, toothed, base of terminal lobe wide; young bark

Front 2

Acer saccharinum - silver maple

Back 2

"tall tree 40-60 high; bark grey and peels off with age; leaves opposite, deeply 5-lobed, slightly

Front 3

Sagittaria sp. - arrowhead, duck potato

Back 3

"leaves variable from arrow-shaped to elliptical (ribbon-like) to lance-shaped, erect extending above

Front 4

Cicuta sp. – water hemlock

Back 4

"Biennial or perennial toxic herb. Highly poisonous, handle with caution. Stems, leaves, and shoots

Front 5

Ilex verticillata - Michigan holly

Back 5

"plants are dioecious; leaves alternate, acuminate at tip with numerous fine teeth along margins; holly

Front 6

Peltandra virginica - arrow arum

Back 6

"leaves lobed at base (typically sagitate), each basal lobe with a heavy central vein, 3-nerved,with a small

Front 7

Bidens sp. - begger-ticks

Back 7

"flowers inconspicuous, lacking rays, bright yellow; leaves variable mostly toothed and lanceolate,

Front 8

Eupatorium maculatum - joe-pye-weed

Back 8

"stem deep purple or purple spotted, rough and coarse, up to 1m tall; leaves in whorls, on short petioles,

Front 9

Eupatorium perfoliatum - boneset

Back 9

"leaves wrinkled and veiny, unite basally around the stem (perfoliate); hairy plant; white flower; low

Front 10

Solidago sp. - goldenrod

Back 10

"leaves are ribbon-like with a central vein; upper part of stem branched; inflorescence is flat-topped, flowers

Front 11

Alnus incana – speckled alder

Back 11

"thicket forming shrub up to 15 tall; leaves simple, dull above, whitened beneath, doubly toothed, with

Front 12

Sambucus canadensis – common elder

Back 12

"Shrubs or small trees to 3m tall which may from thickets. Stems pithy with protruding wart-like lenticels.

Front 13

Ceratophyllum sp. - coontail

Back 13

"leaves whorled, dichotomously forked with spiny teeth along one side, more crowded toward the tip

Front 14

Cornus sp. - dogwood

Back 14

"Shrubs or trees; leaves not toothed; leaf veins follow the smooth leaf edges toward the tips; silky sap

Front 15

Carex sp.

Back 15

"Nutlet enclosed in a sac, the perigynium; stamens and pistils in separate flowers. Staminate and pistillate

Front 16

Scirpus cyperinus - wool grass

Back 16

"spikelets terminal, like a fountain spray of wool puff ball due to long bristles; involucels (bracts at

Front 17

Scirpus validus - softstem bulrush

Back 17

"single round stem with sheath at base, sometimes leafy and sometimes naked from 70cm-200cm in height,

Front 18

Quercus bicolor – swamp oak

Back 18

"Medium size tree reaching height to 20 meters. Leaves alternate, simple, obovate, margin with large

Front 19

Elodea sp. - waterweed

Back 19

"plants submersed; branching stems forming large masses at the bottom; leaves whorled (rarely opposite),

Front 20

Lycopus americanus - cut-leaved water horehound

Back 20

"leaves opposite, deeply serrated; square stems; without odor; flowers small in clusters in axils, corolla is

Front 21

Lythrum salicaria - purple loosestrife

Back 21

"stems slender, angled, not woody (can be woody as they age); leaves opposite, not petioled, sort of heartshaped

Front 22

Calamagrostis canadensis - bluejoint

Back 22

"leaves very narrow1-5mm thick; 1 floret per spikelet; bristle like hairs from floret; stem slight up to

Front 23

Leersia oryzoides - rice cut grass

Back 23

"stems 10cm-1m high; stems and leaves rough and cutting (feeling sticky); joints of stems with very small

Front 24

Phalaris arundinaceae - reed canary grass

Back 24

"leaves 5-15mm wide; slender tall grass up to 1.5m; found in large clumps; flowers in spikelets in club-like

Front 25

Polygonum sp. - smartweed

Back 25

"leaves long, narrow, lance-shaped; flower pink or whitish spike-like clusters, without petals, made up of

Front 26

Rumex sp. - dock

Back 26

"Perrenial herbs. Leaves large and clustered at base of plant, or can be leafy stemmed, oblong, flat to wavy

Front 27

Pontedaria cordata - pickerelweed

Back 27

"leaves clustered, large, arrow or heart-shaped with numerous parellel veins, extending erect above the

Front 28

Potamogeton crispus - curly pondweed

Back 28

"Aquatic perennial herb. Stems compressed with few branches. Leaves al submersed, oblong rounded at tip

Front 29

Rosa palustris - marsh rose

Back 29

"Highly branching prickly shrub. Leaves alternate and palmately divided into usually seven leaflets.

Front 30

Spirea sp.

Back 30

"Shrubs with slender wand-like twigs, narrow based and mostly toothed leaves, papery bark that often

Front 31

Cephalanthus occidentalis - buttonbush

Back 31

"shrub; leaves opposite, 2-3 long, in twos or whorls of three, waxy and thick, elliptic, sharp pointed;

Front 32

Salix sp. - willow

Back 32

"variable species and difficult to identify to species: IN GENERAL: leaves alternate, usually lanceolate,

Front 33

Solanum dulcamara - nightshade

Back 33

"perennial vine; leaves heart-shaped and lobed; flowers purple or blue; berries red; moist soil, wet

Front 34

Typha angustifolia - narrow-leaved cattail

Back 34

"leaves long thin and ribbon-like; stem is slender, underground stems spread rapidly; flowers small and

Front 35

Typha latifolia - broad-leaved cattail

Back 35

"leaves flat, thick and wide; stems stout, underground stems spread rapidly; flowers small and unisexual,

Front 36

Boehmeria cylindrica - false nettle

Back 36

"16-40 tall; stem hollow, 4-angled; leaves opposite, NO stinging hairs, well stalked, coarsely toothed,

Front 37

Vitis riperia - river-bank grape

Back 37

"vine; leaves alternate, roughly 3-lobed to about 12 long, leaf margins with teeth various and lobed