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

Common name(s): rattlepod, fuzzy rattlepod, kolomona (Ni`ihau), kukaehoki
General Information
DistributionWidespread in the tropics and subtropics.In the Hawaiian Islands, naturalized on Midway, Ni`ihau, Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Kaho`olawe, Hawai`i.

Erect annual or suffrutescent perennial herbs; stems 2.5-13.3 dm long, weakly striate, usually spreading long-pubescent.
Leaves trifoliolate, leaflets elliptic, ovate, or obovate, 1-7 cm long, 0.6-4.4 cm wide, veins 3-6 on each side of midvein, both surfaces usually spreading long-pubescent, apex rounded, often retuse or mucronate, base rounded or broadly cuneate, petioles 20-80 mm long, stipules triangular, 3-8 mm long, persistent or caducous.
Flowers 8.5-16 mm long, 5-30 in leaf-opposed or terminal, lax to crowded inflorescences, rachis 5-23 cm long (incl. peduncle), bracts linear-triangular, 2-8 mm long, pendent, caducous or persistent, bracteoles at apex of pedicel, linear to filiform; calyx usually spreading long-pubescent, the tube 1.5-3 mm long, the lobes 4.5-12 mm long, lateral lobes distinct at apex; petals yellow, with age with red or brown lines near base, standard 8.5-16 mm long, 5-11.6 mm wide, wings oblong, 7-13 mm long, 2.5-5 mm wide, keel petals with nontwisted short beak short, margins lanate; elongated anthers 1.5-2.5 mm long, short ones 0.5-0.9 mm long.
Pods tan or dark brown at maturity, 2.8-3.9 cm long, nonstipitate, spreading long-pubescent.
Seeds ca. 40 per pod, brown or black, 1.8-3 mm long, smooth.
2n = 14, 16