Townsendia leptotes |
Townsendia annua |
|
---|---|---|
common Townsend daisy, common townsendia, slender townsendia |
annual Easter daisy, annual Townsend daisy |
|
Habit | Perennials, 1–3 cm (± pulvinate). | Annuals, 3–12(–16+) cm. |
Stems | ± erect; internodes 0.1–1 mm, strigose. |
decumbent to erect; internodes (1–)3–12(–18+) 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. |
mostly cauline, blades spatulate to narrowly oblanceolate, 8–12(–25+) × 1–3(–5+) mm, not fleshy, faces ± strigillose. |
Involucres | ± campanulate, 8–12(–20+) mm diam. |
± hemispheric, 8–12(–16) 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. |
12–30+; corollas white or pinkish to lavender adaxially, laminae 5–8+ mm, glabrous abaxially. |
Disc florets | 40–80+; corollas 4–6+ mm. |
60–120+; corollas 2.5–3.5+ 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. |
26–30+ in 3+ series, the longer ± lance-ovate to oblanceolate, 5–6+ mm (l/w = 2.5–5), apices acute, abaxial faces strigillose to glabrate. |
Heads | usually ± sessile, rarely on scapiform peduncles 5–15+ mm. |
at tips of stems. |
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. |
2–3 mm, faces hairy, hair tips glochidiform; pappi persistent; on ray cypselae ± 10 lanceolate scales 0.2–0.5(–1) mm; on disc cypselae 20+ subulate scales 1–2.5(–4) mm. |
2n | = 18. |
= 18. |
Townsendia leptotes |
Townsendia annua |
|
Phenology | Flowering Jun–Jul. | Flowering Apr–Jun(–Oct). |
Habitat | Rocky ridges, sandy slopes | Sandy soils, alkaline flats, red clays |
Elevation | (2300–)2900–3800 m ((7500–)9500–12500 ft) | 1200–2100 m (3900–6900 ft) |
Distribution |
CA; CO; ID; MT; NM; NV; UT; WY
|
AZ; CO; NM; TX; UT; WY
|
Discussion | The type of Townsendia annua may prove to be conspecific with that of T. strigosa. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 20, p. 203. | FNA vol. 20, p. 198. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | T. sericea var. leptotes | |
Name authority | (A. Gray) Osterhout: Muhlenbergia 4: 69. (1908) | Beaman: Contr. Gray Herb. 183: 132, plate 22, fig. 4. (1957) |
Web links |