Purshia mexicana (D. Don) S. L. Welsh

Cowania mexicana D. Don, Trans. Linn. Soc. 14: 575. 1825
Geum ? dryadoides DC; Seringe, in DC. Prodr. 2: 554. 1825.
An erect branched shrub, 1-2 m. high, with short branches and brown bark, tomentose when young; leaves 3-cleft, with oblong, entire lobes, glandular-punctate above, but without stalked glands, white-tomentose beneath, and revolute-margined, 5-10 mm. long; stipules adnate to the short petioles, the free portion lanceolate; flowers solitary, terminal; pedicels 2-5 mm. long, tomentose, the glands sessile and often hidden in the tomentum; hypanthium campanulate, 3-4 mm. long, rather abruptly contracted into the pedicel; sepals imbricate, rounded, ovate, or obovate, rounded at the apex, 3 mm. long, tomentose when young, with sessile glands; petals yellow, broadly obovate, about 8 mm. long; stamens many; filaments filiform; pistils 5-10, densely villous; body lance-oblong, 3-4 mm. long; styles about 4 cm. long; glabrous tips 1-2 mm. long.
Type locality: Mexico. Distribution: Central Mexico.