Townsendia leptotes |
Townsendia exscapa |
|
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common Townsend daisy, common townsendia, slender townsendia |
Easter daisy, stemless Townsend daisy |
|
Habit | Perennials, 1–3 cm (± pulvinate). | Perennials, 1–3 cm (± pulvinate). |
Stems | ± erect; internodes 0.1–1 mm, strigose. |
± erect; internodes 0.1–1 mm, ± hirsute to strigose or glabrate. |
Leaves | basal and cauline, blades spatulate to narrowly obovate, (8–)12–25(–40+) × 1–2(–3+) mm, ± fleshy, faces ± strigose to strigillose or glabrate. |
basal and cauline, blades ± spatulate to narrowly oblanceolate or linear, 12–40(–75) × 2–6+ mm, not fleshy, faces ± strigillose. |
Involucres | ± campanulate, 8–12(–20+) mm diam. |
± hemispheric, (10–)12–25+ mm diam. |
Ray florets | 13–34+; corollas usually white or pinkish, seldom blue, adaxially, laminae 5–7(–12+) mm, abaxially usually glabrous, sometimes sparsely glandular-puberulent. |
11–40; corollas white adaxially, laminae (9–)12–18+ mm, glabrous abaxially. |
Disc florets | 40–80+; corollas 4–6+ mm. |
100–150+; corollas 6.5–9(–12+) mm. |
Phyllaries | 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. |
30–45(–60) in 4–6+ series, the longer narrowly lanceolate or linear to subulate, (10–)12–14(–17) mm (l/w = 6–9), apices obtuse to acute, abaxial faces sparsely strigillose or glabrate. |
Heads | usually ± sessile, rarely on scapiform peduncles 5–15+ mm. |
± sessile (usually nestled among rosette leaves). |
Cypselae | 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. |
4(–6+) mm, faces hairy, hair tips glochidiform; pappi persistent; on ray cypselae 20–30 setiform scales 6–8+ mm; on disc cypselae 20–30+ setiform scales 6.5–11+ mm. |
2n | = 18. |
= 18. |
Townsendia leptotes |
Townsendia exscapa |
|
Phenology | Flowering Jun–Jul. | Flowering Mar–Jun(–Aug). |
Habitat | Rocky ridges, sandy slopes | Openings in pine forests, meadows, gravelly hills, sandy soils |
Elevation | (2300–)2900–3800 m ((7500–)9500–12500 ft) | (1300–)1600–2300(–3300) m ((4300–)5200–7500(–10800) ft) |
Distribution |
CA; CO; ID; MT; NM; NV; UT; WY
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AZ; CO; ID; KS; MT; ND; NE; NM; NV; OK; SD; TX; UT; WY; AB; MB; SK; Mexico (Chihuahua)
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Source | FNA vol. 20, p. 203. | FNA vol. 20, p. 200. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | T. sericea var. leptotes | Aster exscapus, T. sericea |
Name authority | (A. Gray) Osterhout: Muhlenbergia 4: 69. (1908) | (Richardson) Porter: Mem. Torrey Bot. Club 5: 321. (1894) |
Web links |