Difference between revisions of "Enceliopsis nudicaulis"
Bot. Gaz. 47: 433. 1909.
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|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae | ||
Latest revision as of 21:11, 5 November 2020
Perennials, 10–40 cm; herbage dull gray, hairs ± spreading. Leaves: petioles not or barely winged; blades suborbiculate to ovate, 2–6 × 2–6 cm. Peduncles 15–45 cm. Involucres 10–20 mm. Phyllaries in 3–5 series, narrowly lanceolate (bases ovate), apices acute. Ray florets ± 21; corollas yellow, laminae 20–40 mm. Cypselae ± 9 × 3.5 mm, silky-hairy; pappi of 2 awns 1–1.5 mm (plus minute scales or teeth). 2n = 32.
Phenology: Flowering Apr–Aug.
Habitat: Stony hillsides, canyons
Elevation: 900–2000 m
Distribution
Ariz., Calif., Idaho, Nev., Utah.
Discussion
Plants with strongly corrugate leaf margins from Ash Meadows, Nevada, are var. corrugata. Cronquist believed that corrugate-leaved plants from other areas in southern Nevada were a result of drying in press; D. L. Sanders (unpubl.) showed a gradual drop-off in corrugation of living leaves in the region to the east of Ash Meadows.
Selected References
None.