Townsendia minima |
Townsendia glabella |
|
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Wyoming Townsend daisy |
Gray's Townsend daisy |
|
Habit | Perennials, 1–2+ cm (± pulvinate). | Perennials, 1–5 cm (± pulvinate). |
Stems | ± erect; internodes 0.1–1+ mm, ± strigose. |
± erect; internodes 0.1–1 mm, strigose. |
Leaves | basal and cauline, blades ± spatulate, 5–10(–15+) × 1.5–3+ mm, ± fleshy, faces sparsely strigose or glabrate. |
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 | ± campanulate, 6–10 mm diam. |
hemispheric or broader, 8–12(–24) mm diam. |
Ray florets | 8–21; corollas white or pinkish adaxially, laminae 4–8 mm, abaxially usually glabrous, sometimes sparsely glandular-puberulent. |
12–34+; corollas usually white, sometimes pink or blue adaxially, laminae 5–10(–14+) mm, glabrous abaxially. |
Disc florets | 20–40+; corollas 3–4 mm. |
50–80+; corollas 3.5–5.5 mm. |
Phyllaries | 20–28 in 3–4+ series, the longer ± lanceolate, 5–7 mm (l/w = 2.5–5), sometimes glabrate, apices obtuse to acute, abaxial faces usually ± strigillose. |
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 | ± sessile. |
usually on scapiform peduncles 10–20(–70) mm, rarely sessile. |
Cypselae | 2–3.5 mm, faces hairy, hair tips entire or forked; pappi persistent, 15–30 subulate to setiform scales 3–5 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 | = 27 (apomicts). |
= 18. |
Townsendia minima |
Townsendia glabella |
|
Phenology | Flowering Apr–Jun. | Flowering May–Aug. |
Habitat | Rocky slopes, talus | Shale slopes with pines |
Elevation | 1800–3100 m (5900–10200 ft) | 2100–2600 m (6900–8500 ft) |
Distribution |
UT
|
CO
|
Discussion | Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
Source | FNA vol. 20, p. 202. | FNA vol. 20, p. 203. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | T. alpigena var. minima | |
Name authority | Eastwood: Leafl. W. Bot. 1: 206. (1936) | A. Gray: Proc. Amer. Acad. Arts 16: 86. (1881) |
Web links |