Flora of the Hawaiian Islands
Dicotyledon Literature for Desmodium incanum
Wagner et al., 1990, 1999; Lorence & Wagner, 2020.
   Fabaceae -- The Pea Family Bibliography
      Desmodium incanum

Common name(s): tick clover, tick trefoil, ka`imi, Spanish clover
General Information
DistributionNative to tropical and subtropical America, now widespread in Asia and Africa.In the Hawaiian Islands, naturalized on Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Hawai`i.

Prostrate, ascending, or erect herb, subshrub, or shrub to 10 dm tall; stems pubescent with spreading hooked and longer straight hairs, glabrate.
Leaves trifoliolate, petiolate; leaflets subcoriaceous, usually elliptic or narrowly elliptic, terminal one 4–9 cm, long, 1.5–4.5 cm wide, lateral veins conspicuous, adaxial surface with minute hooked and straight hairs and sometimes with a pale whitish mark along midrib, abaxial surface densely appressed pubescent, apex obtuse or often acute; petiole 1–4 cm long.
Inflorescences racemose, flowers numerous, 5–12 cm long, rachis densely pubescent with minute hooked hairs. Flowers on pedicel 3–10 mm long, persistent after articles fall, pubescent with minute hooked hair; corolla pink to purplish, 5–6 mm long.
Fruit stipitate, (3)4–5(–8)-jointed, (2–)2.5–3(–4) cm long, densely pubescent with hooked hairs, articles nearly semicircular, 4–5 mm long, ca. 3 mm wide.
2n = 22.
Nancy Khan