Medicago polymorphais
an annual or biennial herb that originated in Europe and naturalized
itself in various districts in the Edo period. Basal parts of stems
crawl on the ground, growing to 10-60cm in height. Leaves comprise
three obovate leaflets 1-2cm long and 0.5-1.5cm wide. Stipules cut in
deeply like the teeth of a comb, and flowers, yellow, 4-5mm long,
set themselves some at leaf axils. Legumes wind themselves in
whorls, 5-6mm in diameter, spirally, with prickles like hooks on
margins. Bloom time: March-May.
Wild plants in and around Shimane
島根とその周辺の野生植物
