Difference between revisions of "Palafoxia rosea"
Rhodora 48: 86. 1946.
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|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Chaenactidinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Chaenactidinae | ||
Latest revision as of 20:15, 5 November 2020
Annuals, 10–50 cm. Stems scabrous to glabrate, not stipitate-glandular. Leaf blades linear-lanceolate, 30–60 × 2–6(–10) mm. Involucres ± turbinate. Phyllaries 5–10 × 1–2.5 mm, ± equal, usually scabrellous and stipitate-glandular. Ray florets 0. Disc florets 5–30; corollas actinomorphic, 7–10 mm, throats ± funnelform, shorter than lobes. Cypselae 5–8 mm; pappus scales of inner cypselae (1.5–)3–8 mm. 2n = 20.
Phenology: Flowering spring–fall.
Habitat: Sandy soils
Elevation: 100–1500 m
Distribution
Colo., Kans., N.Mex., Okla., Tex., Wyo.
Discussion
Plants of Palafoxia rosea with phyllaries 7–10 (versus 5–7) mm and pappus scales 3–8 (versus 1–3) mm have been treated as var. macrolepis. Some specimens are not readily assignable to either variety, and some are not readily assignable to either P. rosea or P. texana. Other specimens referred here to P. rosea closely resemble P. callosa.
Selected References
None.