Mimosa albida var. strigosa (Willd.) Robinson

Mimosa standleyi Macbride, Contr. Gray Herb. 59: 12. 1919
Mimosa Williamsii Standley, Contr. U. S. Nat. Herb. 18: 105. 1916. Not Rusby, 1912.
Trailing, the branches 2 m. long, glabrous, or sparingly pubescent, unarmed or very sparingly prickly. Petiole 2-5 cm. long, occasionally bearing a prickle; pinnae I pair; leaflets 2 pairs, the lower, inner leaflet very small, the others oblong to elliptic, 3-5 cm. long, acute, appressed-pubescent on both sides; peduncles 1-3.5 cm. long; legume 1-2 cm. long, 6-8 mm. wide, long-stipitate, acuminate or apiculate, appressed-hispid, I-3-jointed.
Type locality: Penenome, Panama. Distribution: Known only from the type locality.