Iresine tomentella Standl.

Iresine tomentella Standley, Contr. U. S. Nat. Herb. 18: 97. 1916
Shrub ; branches slender, sparsely whitish-tomentose when young, glabrate in age ; petioles 0.8-1.5 cm. long, tomentulose when young; leaf -blades oblong-elliptic, elliptic, or oblanceolateoblong, 12.5-21.5 cm. long, 3.3-6.5 cm. wide, cuneate at the base, acute or longacuminate at the apex, usually somewhat abruptly so, thin, bright-green, glabrous above, loosely tomentose beneath along the veins when young, glabrate in age, the lateral veins conspicuous, arcuateascending; flowers polygamous, loosely paniculate, the panicle 9.5 cm. long and as broad, the branches ascending, thinly tomentose, the basal bracts linear, 2-2.5 cm. long; spikelets sessile, few-flowered, 2-2.5 mm. in diameter, the rachis lanate; bracts and bractlets ovate-orbicular, half as long as the sepals, obtuse or acutish, stramineous, hyaline, glabrous; sepals oval, 1.5-2 mm. long, obtuse, sparsely lanate at the base, stramineous; staminodia minute.
Typb locality: Near G6mez Farias, Tamaulipas, at an altitude of 350 meters. Distribution: Known only from the type locality.