Townsendia eximia |
Townsendia smithii |
|
---|---|---|
tall Townsend daisy, tall townsendia |
Black Rock Townsend daisy |
|
Habit | Biennials or perennials, 6–15(–30+) cm (sometimes rhizomatous). | Perennials, 3–8(–12+) cm (usually ± pulvinate). |
Stems | ± erect; internodes 6–8(–25) mm, ± strigose. |
± erect; internodes 0.1–1 mm, ± scabrellous. |
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, ± spatulate to oblanceolate, 15–50(–80) × 2–6(–11) mm, little, if at all, fleshy, faces ± scabrellous. |
Involucres | hemispheric or broader, (8–)12–25+ mm diam. |
± hemispheric to campanulate, 10–15 mm diam. |
Ray florets | 15–55+; corollas usually blue adaxially, laminae 12–20 mm, glabrous abaxially. |
12–21; corollas white adaxially, laminae 6–12+ mm, glabrous abaxially. |
Disc florets | (60–)100–150+; corollas (3.5–)4–5+ mm. |
60–80+; corollas 3.5–5 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. |
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. |
Heads | at tips of ± leafy stems. |
on scapiform peduncles 30–80(–120) mm. |
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. |
2.5–3.5 mm, faces hairy, hair tips entire; pappi persistent, 16–20+ lanceolate to subulate scales 0.2–0.8 mm (± connate). |
2n | = 18. |
|
Townsendia eximia |
Townsendia smithii |
|
Phenology | Flowering (May–)Jul–Aug(–Oct). | Flowering May. |
Habitat | Gravelly banks, canyon walls, with junipers, pinyons, and yellow pines | Volcanic soils, pinyon or yellow pines |
Elevation | (1900–)2100–2500(–3300) m ((6200–)6900–8200(–10800) ft) | 2000–2400 m (6600–7900 ft) |
Distribution |
CO; NM
|
AZ |
Discussion | Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 20, p. 197. | FNA vol. 20, p. 202. |
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) | L. M. Shultz & A. H. Holmgren: Brittonia 32: 144, fig. 1. (1980) |
Web links |