Townsendia smithii |
Townsendia formosa |
|
---|---|---|
Black Rock Townsend daisy |
smooth Townsend daisy |
|
Habit | Perennials, 3–8(–12+) cm (usually ± pulvinate). | Biennials or perennials, 10–35(–75+) cm (usually rhizomatous and/or stoloniferous). |
Stems | ± erect; internodes 0.1–1 mm, ± scabrellous. |
erect; internodes (5–)10–15(–35) mm, strigillose. |
Leaves | basal and cauline, ± spatulate to oblanceolate, 15–50(–80) × 2–6(–11) mm, little, if at all, fleshy, faces ± scabrellous. |
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 to campanulate, 10–15 mm diam. |
± hemispheric or broader, 12–18+ mm diam. |
Ray florets | 12–21; corollas white adaxially, laminae 6–12+ mm, glabrous abaxially. |
20–34+; corollas usually white or pinkish adaxially (abaxially blue to lavender), laminae 10–15(–25+) mm, glabrous abaxially. |
Disc florets | 60–80+; corollas 3.5–5 mm. |
80–150+; corollas 4 mm. |
Phyllaries | 14–26 in 2–3+ series, the longer lance-ovate to lanceolate, 9–11 mm (l/w = 3–5), apices attenuate, abaxial faces piloso-strigose to 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 | on scapiform peduncles 30–80(–120) mm. |
at tips of stems (seldom surpassed by leaves). |
Cypselae | 2.5–3.5 mm, faces hairy, hair tips entire; pappi persistent, 16–20+ lanceolate to subulate scales 0.2–0.8 mm (± connate). |
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 smithii |
Townsendia formosa |
|
Phenology | Flowering May. | Flowering Jul–Aug(–Sep). |
Habitat | Volcanic soils, pinyon or yellow pines | Meadows, yellow-pine forests |
Elevation | 2000–2400 m (6600–7900 ft) | 2400–2600 m (7900–8500 ft) |
Distribution |
AZ |
AZ; NM |
Discussion | Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 20, p. 202. | FNA vol. 20, p. 197. |
Parent taxa | ||
Sibling taxa | ||
Name authority | L. M. Shultz & A. H. Holmgren: Brittonia 32: 144, fig. 1. (1980) | Greene: Leafl. Bot. Observ. Crit. 1: 213. (1906) |
Web links |