Hesperidanthus linearifolius
Bull. Torrey Bot. Club 34: 434. 1907.
Perennials. Stems simple or few from caudex, erect, (often much-branched distally), (2.5–) 3.5–10 (–15) dm. Leaves shortly petiolate; blade usually linear to linear-lanceolate, rarely lanceolate, (2.5–) 3.5–12 (–15) cm × (1–) 2–6 (–10) mm (smaller distally), base cuneate to attenuate (or petiolelike), margins entire or, very rarely, sparsely denticulate, apex acuminate to acute. Racemes several-flowered, (proximalmost flowers sometimes bracteate). Fruiting pedicels divaricate or ascending, straight, (5–) 8–20 (–25) mm. Flowers: sepals purplish, (4–) 4.5–7 × 1–2 mm, (median pair apical cuculla to 0.7 mm); petals purple, (10–) 12–16 (–18) × (2–) 3.5–5.5 mm, claw distinctly differentiated from blade, [5–7 (–9) mm]; filaments 2–4 mm; anthers narrowly oblong to linear, 2–4 mm; gynophore 0.4–1 (–2) mm. Fruits usually straight, rarely curved, terete, (3.5–) 4–9 (–11) cm × 1–1.5 mm; ovules (76–) 80–110 per ovary; style subclavate to cylindrical, 0.5–1.8 (–2.5) mm; stigma conical, 2-lobed (lobes prominent, connivent). Seeds 0.9–1.6 × 0.5–0.9 mm. 2n = 22, 44.
Phenology: Flowering Jul–Nov.
Habitat: Open woods, dry hillsides, oak woodland, mixed conifer forests, arroyos, canyons, rocky ridges, limestone ledges, sandstone crevices, roadsides
Elevation: 700-3100 m
Distribution
Ariz., Colo., N.Mex., Tex., Mexico (Chihuahua), Mexico (Coahuila), Mexico (Durango), Mexico (Nuevo León), Mexico (San Luis Potosí), Mexico (Sonora), Mexico (Zacatecas)
Discussion
Selected References
None.
Lower Taxa
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