Habit:
annual.
Stem:
prostrate, glabrous.
Leaves:
3-foliolate, leaflets ovate.
Peduncle:
glabrous.
Inflorescence:
axillary raceme.
Seed number
per pod: 2~5.
Shape of seed:
ellipsoid.
Propagation
method: seed.
Weight of
1000 seeds: brown 25 g, black 39 g.
Self-seeding:
good.
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Root:
primary root.
Plant
height (stem tip): 150 cm.
Leaf
surface: glabrous.
Flowering
time: Dec. to Mar.
Flower:
white.
Pod:
ellipsoid, flat, glabrous.
Color of
seed: brown or black.
Usage:
forage, green manure, edible.
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