Havardia mexicana (Rose) Britton & Rose

Havardia mexicana (Rose) Britton & Rose
Pithecolobium tnexicaHumKose.ContT. V.S.Nat. Herb. 1: 100. 1891.
A small tree, 5-10 m. high, the twigs hairy but soon glabrate, the stipular spines, when present, 2-4 mm. long. Petiole and rachis pilose; a small sessile gland on the petiole and sometimes on the rachis; pinnae 2-4 pairs; leaflets 5-10 pairs, oblong, 4-8 mm. long, puberulent on both sides, obtuse, the midvein somewhat excentric; inflorescence paniculate; peduncles slender, 5-15 mm. long, hairy; pedicels about 2 mm. long; calyx 1 mm. long, pubescent; corolla 3 mm. long, pubescent, deeply lobed, the lobes spreading; stamens numerous, 8-10 mm. long, their tube short; legume 7-10 cm. long, 2-2.5 cm. broad, sometimes constricted between the seeds, glabrous; seeds few.
Type locality: Alamos, Sonora.
Distribution: Sonora, Sinaloa, and Lower California.