Othake sphacelatum

Comprehensive Description

provided by North American Flora
Othake sphacelatum (Nutt.) Rydb. Bull. Torrey Club 37: 331
Stevia sphacelata Nutt.; Torr. Ann. Lye. N. Y. 2: 214. 1827.
Palafoxia Hookeriana subradiata T. &. G. Fl. N. Am. 2: 368. 1842.
Polypteris Hookeriana A. Gray, Syn. Fl. N. Am. 1^: 337, in part. 1884. Not Palafoxia Hookeriana
T. &G. 1842. Polypteris sphacelata Trel. in Branner & Coville, Rep. Ark. Geol. Surv. 1888<: 197. 1891. Othake Hookeriatnim Bush, Trans. Acad. St. Louis 14: 177; excl. syn. 1904.
A branched annual; stem 2-6 dm. high, hispid and strongly glandular above; leaves
petioled, linear-lanceolate to lanceolate, or the upper linear, 3-10 cm. long, 6-15 mm. wide,
rarely distinctly 3-nerved, hispid-strigose; involucre turbinate, about 1 cm. high and broad;
bracts 10-15, linear-oblanceolate, purple-tipped, densely scabrous-hispidulous and glandular;
ray-flowers 8-10; ligules rose-purple, deeply 3-cleft, 1-2 cm. long, rarely none; disk-flowers
purplish; tube about 5 mm. long; lobes 3 mm. long; achenes 6-7 mm. long, pubescent;
squamellae of the disk-flowers lanceolate, awned, as long as the corolla-tube, those of the
ray-flowers spatulate, obtuse.
Type locality: Not given, but type was collected on Long's Expedition to the Rocky Mountains, probably in Colorado.
Distribution: Kansas and Colorado to Texas and Chihuahua.
bibliographic citation
Per Axel Rydberg. 1914. (CARDUALES); CARDUACEAE; HELENIEAE. North American flora. vol 34(1). New York Botanical Garden, New York, NY
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