Townsendia mensana |
Townsendia smithii |
|
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table Townsend daisy |
Black Rock Townsend daisy |
|
Habit | Perennials, 1–3 cm (± pulvinate). | Perennials, 3–8(–12+) cm (usually ± pulvinate). |
Stems | ± erect; internodes 0.1–1 mm, ± pilose. |
± erect; internodes 0.1–1 mm, ± scabrellous. |
Leaves | basal and cauline, blades narrowly oblanceolate to lance-linear, 5–40+ × 0.6–2.5+ mm, not fleshy, faces ± strigoso-sericeous to strigose. |
basal and cauline, ± spatulate to oblanceolate, 15–50(–80) × 2–6(–11) mm, little, if at all, fleshy, faces ± scabrellous. |
Involucres | ± campanulate, 7–10 mm diam. |
± hemispheric to campanulate, 10–15 mm diam. |
Ray florets | 13–21+; corollas white adaxially, laminae 4–8+ mm, glandular-puberulent abaxially. |
12–21; corollas white adaxially, laminae 6–12+ mm, glabrous abaxially. |
Disc florets | 40–60+; corollas (3.5–)4.5–6 mm. |
60–80+; corollas 3.5–5 mm. |
Phyllaries | 25–50+ in 4–5+ series, the longer narrowly lanceolate, 6–8+ mm (l/w = 5–6), apices acute, abaxial faces sparsely strigillose or glabrate. |
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 | ± sessile. |
on scapiform peduncles 30–80(–120) mm. |
Cypselae | 3–3.5 mm, faces hairy, hair tips glochidiform; pappi persistent; on ray cypselae 15–35 subulate to setiform scales 0.5–1.5 or 4–5 mm; on disc cypselae 15–35 subulate to setiform scales 4–6.5 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 mensana |
Townsendia smithii |
|
Phenology | Flowering May. | Flowering May. |
Habitat | Openings with junipers and pinyons | Volcanic soils, pinyon or yellow pines |
Elevation | 1700–2700 m (5600–8900 ft) | 2000–2400 m (6600–7900 ft) |
Distribution |
UT |
AZ |
Discussion | Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 20, p. 201. | FNA vol. 20, p. 202. |
Parent taxa | ||
Sibling taxa | ||
Name authority | M. E. Jones: Contr. W. Bot. 13: 15. (1910) | L. M. Shultz & A. H. Holmgren: Brittonia 32: 144, fig. 1. (1980) |
Web links |