Townsendia eximia |
Townsendia glabella |
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tall Townsend daisy, tall townsendia |
Gray's Townsend daisy |
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Habit | Biennials or perennials, 6–15(–30+) cm (sometimes rhizomatous). | Perennials, 1–5 cm (± pulvinate). |
Stems | ± erect; internodes 6–8(–25) mm, ± strigose. |
± erect; internodes 0.1–1 mm, strigose. |
Leaves | basal and cauline, blades spatulate to oblanceolate, 15–60(–120+) × 2–6(–10) mm (margins strigoso-ciliate), faces usually glabrous, sometimes sparsely strigillose. |
basal and cauline, blades spatulate to oblanceolate, 20–60+ × 2–5(–11+) mm, little, if at all, fleshy (margins strigoso-ciliate), usually glabrous, sometimes sparsely strigillose. |
Involucres | hemispheric or broader, (8–)12–25+ mm diam. |
hemispheric or broader, 8–12(–24) mm diam. |
Ray florets | 15–55+; corollas usually blue adaxially, laminae 12–20 mm, glabrous abaxially. |
12–34+; corollas usually white, sometimes pink or blue adaxially, laminae 5–10(–14+) mm, glabrous abaxially. |
Disc florets | (60–)100–150+; corollas (3.5–)4–5+ mm. |
50–80+; corollas 3.5–5.5 mm. |
Phyllaries | (30–)60–80+ in (4–)5–6+ series, the longer ± lanceolate, (7–)12–13+ mm (l/w = 3–5), apices acute to attenuate (most hard, apiculate), abaxial faces sparsely strigillose or glabrous. |
20–28+ in 3–4+ series, the longer ± lanceolate, 5–9 mm (l/w = 3–5), apices acute, abaxial faces glabrous or sparsely strigillose. |
Heads | at tips of ± leafy stems. |
usually on scapiform peduncles 10–20(–70) mm, rarely sessile. |
Cypselae | 3–4+ mm, faces ± hairy, hair tips forked or glochidiform; pappi persistent; on ray cypselae each a corona 0.1–0.5 mm; on disc cypselae each of 8–12+ lanceolate scales 0.5–1 mm plus 1–2+ subulate to setiform scales 1–4 mm. |
2–4 mm, faces sparsely hairy (mostly at bases), hair tips glochidiform; pappi persistent; on ray cypselae ± 20 lanceolate to subulate scales 0.5–1.8 mm; on disc cypselae 15–35 subulate to setiform scales (4–)5–7 mm. |
2n | = 18. |
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Townsendia eximia |
Townsendia glabella |
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Phenology | Flowering (May–)Jul–Aug(–Oct). | Flowering May–Aug. |
Habitat | Gravelly banks, canyon walls, with junipers, pinyons, and yellow pines | Shale slopes with pines |
Elevation | (1900–)2100–2500(–3300) m ((6200–)6900–8200(–10800) ft) | 2100–2600 m (6900–8500 ft) |
Distribution |
CO; NM
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CO
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Discussion | Of conservation concern. Distinctions between Townsendia glabella and T. rothrockii are subtle. Types of the two names are probably better considered to be conspecific. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 20, p. 197. | FNA vol. 20, p. 203. |
Parent taxa | Asteraceae > tribe Astereae > Townsendia | Asteraceae > tribe Astereae > Townsendia |
Sibling taxa | ||
Name authority | A. Gray: Mem. Amer. Acad. Arts, n. s. 4: 70. (1849) | A. Gray: Proc. Amer. Acad. Arts 16: 86. (1881) |
Web links |