Flora of the Hawaiian Islands
Dicotyledon Literature for Medicago lupulina
Wagner et al., 1990, 1999.
   Fabaceae -- The Pea Family Bibliography
      Medicago lupulina

Common name(s): black medick, nonesuch
General Information
DistributionNative to Europe and temperate Asia, but naturalized in many subtropical and tropical areas.In the Hawaiian Islands, naturalized on Midway, Kaua`i, O`ahu, Maui, Hawai`i.

Annual or short-lived perennial herbs, pubescent; stems procumbent or ascending, 1-8 dm long.
Leaflets obovate, rhombic-cuneate, or oblong-cuneate, 3-20 mm long, 2.5-12 mm wide, pubescent or glabrate, margins denticulate in upper part, apex rounded, ± emarginate, stipules narrowly ovate to cordate, weakly toothed to subentire.
Flowers 10-50 in racemes, bracts white, filiform; corolla yellow, 2-3 mm long.
Pods black when ripe, 1.5-3 mm long, reniform, pubescent, transverse veins prominent, curved, anastomosing, forming an elongated network, prickles absent.
Seed 1.
2n = 16, 28, 32