Townsendia formosa |
Townsendia leptotes |
|
---|---|---|
smooth Townsend daisy |
common Townsend daisy, common townsendia, slender townsendia |
|
Habit | Biennials or perennials, 10–35(–75+) cm (usually rhizomatous and/or stoloniferous). | Perennials, 1–3 cm (± pulvinate). |
Stems | erect; internodes (5–)10–15(–35) mm, strigillose. |
± erect; internodes 0.1–1 mm, strigose. |
Leaves | 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. |
basal and cauline, blades spatulate to narrowly obovate, (8–)12–25(–40+) × 1–2(–3+) mm, ± fleshy, faces ± strigose to strigillose or glabrate. |
Involucres | ± hemispheric or broader, 12–18+ mm diam. |
± campanulate, 8–12(–20+) mm diam. |
Ray florets | 20–34+; corollas usually white or pinkish adaxially (abaxially blue to lavender), laminae 10–15(–25+) mm, glabrous abaxially. |
13–34+; corollas usually white or pinkish, seldom blue, adaxially, laminae 5–7(–12+) mm, abaxially usually glabrous, sometimes sparsely glandular-puberulent. |
Disc florets | 80–150+; corollas 4 mm. |
40–80+; corollas 4–6+ mm. |
Phyllaries | 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. |
40–50+ in 4–5+ series, the longer ± lanceolate, 7–9(–12) mm (l/w = 2.5–5), apices acute to attenuate, abaxial faces sparsely strigose or glabrous. |
Heads | at tips of stems (seldom surpassed by leaves). |
usually ± sessile, rarely on scapiform peduncles 5–15+ mm. |
Cypselae | 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. |
3+ mm, faces glabrous or sparsely hairy (hairs mostly at bases), hair tips glochidiform; pappi persistent; on ray cypselae ca. 25 lanceolate or subulate to setiform scales 0–1 or 5–8 mm; on disc cypselae ca. 30 subulate to setiform scales 5–8 mm. |
2n | = 18. |
= 18. |
Townsendia formosa |
Townsendia leptotes |
|
Phenology | Flowering Jul–Aug(–Sep). | Flowering Jun–Jul. |
Habitat | Meadows, yellow-pine forests | Rocky ridges, sandy slopes |
Elevation | 2400–2600 m (7900–8500 ft) | (2300–)2900–3800 m ((7500–)9500–12500 ft) |
Distribution |
AZ; NM |
CA; CO; ID; MT; NM; NV; UT; WY
|
Source | FNA vol. 20, p. 197. | FNA vol. 20, p. 203. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | T. sericea var. leptotes | |
Name authority | Greene: Leafl. Bot. Observ. Crit. 1: 213. (1906) | (A. Gray) Osterhout: Muhlenbergia 4: 69. (1908) |
Web links |