Description of Native Vines 
63. Various-leaved Kidney-bean. (Phaseolus helvolus.) 
LEAF : pinnate, alternate ; leaflets, 3, %4'-3' long, ovate to long- 
ovate, entire or 3-lobed. FLOWER: greenish-white, red- or pur- 
ple-tinged, sweet-pea-shaped (calyx 5-toothed), few-clustered on 
long stem; August, September; pod about straight. Massa- 
chusetts, and south, on coast, and along Great Lakes: twining 
and trailing, herbaceous. 
64. Umbelled Kidney-bean. (Phaseolus umbellatus.) 
LEAF : pinnate, alternate ; leaflets, 3, about 1’ long, ovate to 
lance-shaped, rarely lobed. FLOWER: sweet-pea-shaped (calyx 
5-toothed), almost stemless, few-clustered ; pod about straight, 
nearly 2’ long, very narrow. Long Island, south and west, in 
sandy soil; twining or trailing, herbaceous. 
65. Spurred Butterfly-pea. (Centrosema virginianum.) 
LEAF: pinnate, alternate; leaflets, 3, 1’ long or more, long 
ovate to linear, glossy; stalk rough-hairy. FLOWER: violet 
pea-shaped, 1’ long (spur near base, calyx 5-toothed), 1-4-clus- 
tered; July; pod straight, 4’-5’. Maryland, and south; twining, 
herbaceous. 
66. Butterfly-pea. (Clitoria mariana.) 
LEAF: pinnate, alternate; leaflets, 3, 1° long, long-ovate to 
lance-shaped. FLOWER: blue or purple, with some whitish, 
showy, 2’ long, pea-shaped, not spurred (calyx 5-toothed), 1-3- 
clustered ; July, August; pod 1%4’-2’, narrow, flat. East New 
York, New Jersey, south and southwest; twining, sometimes 
creeping, woody at base. 
67. Bush-trefoil. Tick-trefoil. (Desmodium rotundi- 
folium.) 
LEAF : pinnate, alternate ; leaflets, 3, 1-2’ long, roundish, en- 
tire , stipules prominent, ovate, pointed; “afand stalk hairy. 
FLOWER: purple, pea-shaped (calyx 5-toothed), few-clustered ; 
August ; pod 2-6-jointed, edge deeply lobed, covered with hooked 
hairs ; trailing, herbaceous. (Pl. VI.) 
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