Townsendia leptotes |
Townsendia hookeri |
|
---|---|---|
common Townsend daisy, common townsendia, slender townsendia |
Hooker's Townsend daisy, Hooker's townsendia |
|
Habit | Perennials, 1–3 cm (± pulvinate). | Perennials, 1–3 cm (± pulvinate). |
Stems | ± erect; internodes 0.1–1 mm, strigose. |
± erect; internodes 0.1–1 mm, ± strigose. |
Leaves | basal and cauline, blades spatulate to narrowly obovate, (8–)12–25(–40+) × 1–2(–3+) mm, ± fleshy, faces ± strigose to strigillose or glabrate. |
basal and cauline, blades narrowly oblanceolate to linear, 5–25(–40+) × 1–1.5(–3) mm, fleshy, faces ± strigoso-sericeous, little, if at all. |
Involucres | ± campanulate, 8–12(–20+) mm diam. |
± campanulate, 8–18+ mm diam. |
Ray florets | 13–34+; corollas usually white or pinkish, seldom blue, adaxially, laminae 5–7(–12+) mm, abaxially usually glabrous, sometimes sparsely glandular-puberulent. |
15–35; corollas white adaxially, laminae 8–12+ mm, glabrous abaxially. |
Disc florets | 40–80+; corollas 4–6+ mm. |
120–180+; corollas 4–5(–6+) mm. |
Phyllaries | 40–50+ in 4–5+ series, the longer ± lanceolate, 7–9(–12) mm (l/w = 2.5–5), apices acute to attenuate, abaxial faces sparsely strigose or glabrous. |
50–65+ in 5+ series, the longer ± lance-linear, 7–11(–13) mm (l/w = 6–9), apices attenuate, abaxial faces sparsely strigose or glabrate. |
Heads | usually ± sessile, rarely on scapiform peduncles 5–15+ mm. |
± sessile. |
Cypselae | 3+ mm, faces glabrous or sparsely hairy (hairs mostly at bases), hair tips glochidiform; pappi persistent; on ray cypselae ca. 25 lanceolate or subulate to setiform scales 0–1 or 5–8 mm; on disc cypselae ca. 30 subulate to setiform scales 5–8 mm. |
3.5–4.5 mm, faces hairy, hair tips glochidiform; pappi persistent; on ray cypselae ca. 30 subulate to setiform scales (1–)5–7 mm; on disc cypselae ca. 30 subulate to setiform scales 5.5–7.5+ mm. |
2n | = 18. |
= 18. |
Townsendia leptotes |
Townsendia hookeri |
|
Phenology | Flowering Jun–Jul. | Flowering Mar–Jun. |
Habitat | Rocky ridges, sandy slopes | Gravelly benches, sandy slopes |
Elevation | (2300–)2900–3800 m ((7500–)9500–12500 ft) | 700–1800 m (2300–5900 ft) |
Distribution |
CA; CO; ID; MT; NM; NV; UT; WY
|
AK; CO; ID; MT; ND; NE; SD; UT; WY; AB; BC; SK; YT
|
Source | FNA vol. 20, p. 203. | FNA vol. 20, p. 200. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | T. sericea var. leptotes | T. nuttallii |
Name authority | (A. Gray) Osterhout: Muhlenbergia 4: 69. (1908) | Beaman: Contr. Gray Herb. 183: 95, plates 17, 20, figs. 5, 6. (1957) |
Web links |