Comprehensive Description
provided by North American Flora
Aciphyllaea acerosa (DC.) A. Gray, Mem. Am. Acad. II. 4: 91
1849.
Dyssodia acerosa DC. Prodr. 5: 641. 1836.
Hvmenatherum acerosum A. Gray, PL Wright. 1: 115. 1852.
Dyssodia fusca A. Nelson, Bot. Gaz. 47: 436. 1909.
A suffruticose perennial; stems 1-2 dm. high, much branched; leaves opposite or alternate, crowded, linear-filiform, acerose, 1-2 cm. long, with smaller ones fascicled in their axils; involucre 6-7 mm. high, 3-5 mm. broad; principal bracts obtuse, with two rows of rounded glands; ligules yellow, 3-4 mm. long; disk-corollas yellow, 4 mm. long; lobes 0.5 mm. long; achenes 3 mm. long; pappus 4 mm. long.
Type locality: State of San Luis Potosi. Distribution: Texas to Arizona, Zacatecas, and Hidalgo.
- bibliographic citation
- Per Axel Rydberg. 1915. (CARDUALES); CARDUACEAE; HELENIEAE, TAGETEAE. North American flora. vol 34(2). New York Botanical Garden, New York, NY
