Grindelia tricuspis (Sch. Bip.) Adr. Bartoli & Tortosa

Olivaea tricuspis Schultz-Bip.; Benth. in Hook. Ic. 111.2:3. 1872
An herb, probably paludose; stem 3 dm. high or more, erect, glabrous or papillose-puberulent above; leaves sessile, cordate-amplexicaul at the base, narrowly lanceolate, entire, or few-toothed towards the base, and sometimes 3-cleft or 3-toothed at the apex, 5-7 cm. long, glabrous on both sides, 1 -ribbed; heads short-peduncled; involucre about 18 mm. broad; bracts narrowly lanceolate, the inner more scarious; ray-flowers about 30; ligules about 12 mm. long; disk-flowers numerous; achenes oval, flattened, glabrous, winged.
Type locality: Guadalajara, Mexico. Distribution: Southern Mexico.