Townsendia florifer |
Townsendia aprica |
|
---|---|---|
showy Townsend-daisy, showy townsendia |
last chance Townsend daisy |
|
Habit | Perennials, 1–2 cm (± pulvinate). | |
Stems | ± erect; internodes 0.1–1 mm, ± strigose. |
|
Leaves | basal and cauline, blades ± spatulate, 5–8(–16+) × 1.5–2.5+ mm, little, if at all, fleshy, faces ± strigose. |
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Involucres | ± campanulate, 4–8+ mm diam. |
|
Ray florets | 13–21; corollas yellow adaxially, laminae 4–6+ mm, glandular-puberulent abaxially. |
|
Disc florets | 25–60+; corollas 4–5+ mm. |
|
Phyllaries | 24–40+ in 4+ series, the longer ± lanceolate, 4–7 mm (l/w = 2.5–5), sometimes glabrate, apices acute to attenuate, abaxial faces usually sparsely strigillose or glandular-puberulent. |
|
Heads | ± sessile. |
|
Cypselae | 2–2.5 mm, faces hairy, hair tips glochidiform; pappi persistent; on ray cypselae 10–12 lanceolate to subulate scales 0.5–1+ mm; on disc cypselae 20+ subulate to setiform scales 4–5+ mm. |
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2n | = 18. |
|
Townsendia florifer |
Townsendia aprica |
|
Phenology | Flowering Apr–May. | |
Habitat | Clay hills | |
Elevation | 1500–2500 m (4900–8200 ft) | |
Distribution |
UT |
|
Discussion | Of conservation concern. Townsendia aprica is questionably distinct from T. jonesii. Townsendia aprica is in the Center for Plant Conservation’s National Collection of Endangered Plants. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 20, p. 201. | |
Parent taxa | Asteraceae > tribe Astereae > Townsendia | |
Sibling taxa | ||
Synonyms | T. jonesii var. lutea | |
Name authority | S. L. Welsh & Reveal: Brittonia 20: 375, fig. 1. (1968) | |
Web links |