Lab Four

Question 1

Poaceae (Grass Family)

Answer 1

2-ranked leaves, leaves narrow, parallel veined, entire; stems round or flattened with definite nodes and internodes; flowers simple without showy petals

Question 2

Cyperaceace (Sedge Family)

Answer 2

3-ranked leaves, narrow; appear grass-like. Stems lack nodes and internodes; are triangular in cross-section, may be confused with grass family plants in early stages

Question 3

Fabaceae (Legumes Family)

Answer 3

Mostly compound and alternate leaves, trifoliate or pinnate, with a pair of stipules at base of petiole; flowers irregular with 5 petals; fruit a single-celled pod

Question 4

Asclepiadaceae (Milkweed Family)

Answer 4

Leaves simple and opposite or whorled without stipules; most species contain milky juice; fruit a long pod with seeds attached to tufts of floss

Question 5

Convolvulaceae (Bindweed Family)

Answer 5

Plants viny, leaves alternately entire, and with a pair of basal lobes; flowers showy, fused into a tube

Question 6

Polygonaceae (Buckwheat Family)

Answer 6

Stems encircled by a membranous sheath just above the node; leaves mostly alternate, simple and entire; flowers without true petals but with petal-like sepals