Townsendia florifera |
Townsendia formosa |
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smooth Townsend daisy |
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Habit | Biennials (perhaps flowering first year, sometimes persisting), 3–12(–15+) cm. | Biennials or perennials, 10–35(–75+) cm (usually rhizomatous and/or stoloniferous). |
Stems | decumbent to erect; internodes 3–12(–15+) mm, piloso-strigose. |
erect; internodes (5–)10–15(–35) mm, strigillose. |
Leaves | basal and cauline, blades spatulate to linear, 10–25(–50+) × 2–3(–8+) mm, not fleshy, faces ± strigose. |
basal and cauline, blades spatulate to oblanceolate or lance-linear, 15–45(–75+) × 2–10(–20) mm, not fleshy (margins strigoso-ciliolate), glabrous or glabrate. |
Involucres | ± hemispheric or broader, 16–20(–30) mm diam. |
± hemispheric or broader, 12–18+ mm diam. |
Ray florets | 13–34+; corollas white or pinkish adaxially, laminae (8–)10–18+ mm, abaxially usually glandular-puberulent, rarely glabrous. |
20–34+; corollas usually white or pinkish adaxially (abaxially blue to lavender), laminae 10–15(–25+) mm, glabrous abaxially. |
Disc florets | (80–)100–150+; corollas (4–)5.5–6+ mm. |
80–150+; corollas 4 mm. |
Phyllaries | 24–30+ in 3–4+ series, the longer ± lanceolate, (6–)9–11+ mm (l/w = 2.5–5), apices acute, abaxial faces strigose. |
30–45 in 4–6+ series, the longer obovate to lance-ovate or lanceolate, 10–12(–14) mm (l/w = 3–5), apices obtuse to acute (some or all hard, ± apiculate), abaxial faces sparsely strigillose or glabrous. |
Heads | at tips of stems. |
at tips of stems (seldom surpassed by leaves). |
Cypselae | (3.5–)4–5+ mm, faces hairy, hair tips entire or forked; pappi persistent; on ray cypselae 20–30 subulate to setiform scales 2–6 mm; on disc cypselae 20–30+ subulate to setiform scales (4–)5–7+ mm. |
3–4(–5) mm, faces glabrous or ± stipitate-glandular, hair tips not forked or glochidiform; pappi persistent, each a bidentate corona 0.1–0.4(–0.8) mm. |
2n | = 18. |
= 18. |
Townsendia florifera |
Townsendia formosa |
|
Phenology | Flowering Apr–Jun(–Aug). | Flowering Jul–Aug(–Sep). |
Habitat | Gravelly flats with junipers and sagebrush | Meadows, yellow-pine forests |
Elevation | 400–2300 m (1300–7500 ft) | 2400–2600 m (7900–8500 ft) |
Distribution |
ID; MT; NV; OR; UT; WA; WY |
AZ; NM |
Discussion | J. H. Beaman (1957) considered plants intermediate between Townsendia florifera and T. parryi to be hybrids. Such intermediates occur in Montana (e.g., Jones in 1905 from Gallatin Co. and Suksdorf 282 from Park Co.), outside the known distribution of T. florifera. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 20, p. 198. | FNA vol. 20, p. 197. |
Parent taxa | Asteraceae > tribe Astereae > Townsendia | Asteraceae > tribe Astereae > Townsendia |
Sibling taxa | ||
Synonyms | Erigeron florifer, T. florifera var. watsonii | |
Name authority | (Hooker) A. Gray: Proc. Amer. Acad. Arts 16: 84. (1880) | Greene: Leafl. Bot. Observ. Crit. 1: 213. (1906) |
Web links |