Description
provided by eFloras
Perennials, 15–30 cm; internodes mostly 10–20+ mm. Leaf blades mostly filiform, 20–60 × 1–2 mm. Phyllaries 5, ovate to oblong or elliptic, 9–12 mm. Florets mostly 50–80+; corollas yellow, 7.5–12 mm. Cypselae 7–8 mm; pappi: longer bristles 8–10 mm. 2n = 72.
- license
- cc-by-nc-sa-3.0
- copyright
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Comprehensive Description
provided by North American Flora
Porophyllum greggii A. Gray, PI. Wright. 1: 120. 1852
A perennial, with a suffruticose base; stems 2-3 dm. high, often flexuose,. terete; leaves alternate, numerous, filiform, 2-4 cm. long; heads solitary at the ends of the branches; peduncles 4—5 cm. long; involucre broadly campanulate, 10-12 mm. high, pale; bracts 5-8, elliptic or obovate-oblong, rounded at the apex, scarious-margined, with 2 rows of long glands; flowers manj-; coroUas yellowish, 8-10 mm. long; tube somewhat shorter than the cylindric throat; lobes ovate; achenes 7 mm. long, hispidulous; pappus yellowish, about 1 cm. long; bristles hispidulous.
Type locality: Valley of Parras, Coahuila.
Distribution: Western Texas and Coahuila.
- bibliographic citation
- Per Axel Rydberg. 1916. (CARDUALES); CARDUACEAE; TAGETEAE, ANTHEMIDEAE. North American flora. vol 34(3). New York Botanical Garden, New York, NY
