Senna racemosa var. liebmannii (Benth.) H. S. Irwin & Barneby

Gaumerocassia liebmannii (Benth.) Britton
Cassia Liebmannii Benth. Trans. Linn. Soc. 27: 549. 1871.
Branches, petioles, rachis and inflorescence softly reddish-pubescent. Leaves 15-20 cm. long; leaflets 6-10 pairs, oval to oblong, 2-3 cm. long, rounded at apex, oblique at base, velvety pubescent above, canescent to villous beneath; racemes lax-flowered, shorter than the leaves; bracts lanceolate, somewhat persistent; pedicels 12-18 mm. long; sepals thickish, 3-6 mm. long, brownish tomentose; petals twice as long as the sepals; legume pubescent.
Type locality: Oaxaca.
Distribution: Known only from the type locality, Santiago Estate, near the sea, Oaxaca.