Comprehensive Description
provided by North American Flora
Laphamia halimifolia A. Gray, PI. Wright. 1: 100. 1852 A perennial with a thick woody caudex; stems 1-2 dm. high, minutely puberulent or glabrate; leaves alternate; petioles about 1 cm. long; leaf -blades rather firm, 1-2.5 cm. long, triple-ribbed, ovate or rhombic, veiny, dentate, with few rather salient teeth, glandulargranuliferous and punctate; heads many in naked corymbs, 18-20-flowered, involucre campanulate, 3.5 mm. high, 2.5-3 mm. broad; bracts about 10, linear, glabrous except the ciliate tips; ligules broadly oval, 2 mm. long, slightly 3-toothed; disk-corollas 2.5 mm. long; tube about equaling the campanulate throat; achenes linear-oblanceolate, minutely puberulent, the faces obscurely 2or 3-nerved, with a slightly callous margin at the apex, but no pappus.
Type locality: San Pedro River [Texas].
Distribution: Western Texas.
- bibliographic citation
- Per Axel Rydberg. 1914. (CARDUALES); CARDUACEAE; HELENIEAE. North American flora. vol 34(1). New York Botanical Garden, New York, NY
