Townsendia annua |
Townsendia jonesii |
|
---|---|---|
annual Easter daisy, annual Townsend daisy |
Jones' Townsend daisy, Jones' townsendia |
|
Habit | Annuals, 3–12(–16+) cm. | Perennials, 1–2(–4) cm (usually ± pulvinate). |
Stems | decumbent to erect; internodes (1–)3–12(–18+) mm, strigose. |
± erect; internodes 0.1–1 mm, ± scabrellous to strigose. |
Leaves | mostly cauline, blades spatulate to narrowly oblanceolate, 8–12(–25+) × 1–3(–5+) mm, not fleshy, faces ± strigillose. |
basal and cauline, blades ± spatulate to oblanceolate, 7–15(–35+) × 1–2(–4+) mm, not fleshy, faces ± scabrellous to strigose. |
Involucres | ± hemispheric, 8–12(–16) mm diam. |
± campanulate, 8–14 mm diam. |
Ray florets | 12–30+; corollas white or pinkish to lavender adaxially, laminae 5–8+ mm, glabrous abaxially. |
13–21; corollas white adaxially, laminae 5–7+ mm, ± densely glandular-puberulent abaxially. |
Disc florets | 60–120+; corollas 2.5–3.5+ mm. |
40–80+; corollas 4.5–5+ mm. |
Phyllaries | 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. |
20–28 in 3–4+ series, the longer ± lanceolate, 4–8 mm (l/w = 2.5–5), sometimes glabrate, apices acute, abaxial faces usually sparsely strigillose. |
Heads | at tips of stems. |
usually ± sessile, sometimes on scapiform peduncles 5–15+ mm. |
Cypselae | 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. |
2–3(–4+) mm, faces hairy, hair tips glochidiform or forked; pappi persistent; on ray cypselae 20–24 subulate to setiform scales 3–4+ mm; on disc cypselae 20–24 subulate to setiform scales 4–6(–8) mm. |
2n | = 18. |
|
Townsendia annua |
Townsendia jonesii |
|
Phenology | Flowering Apr–Jun(–Oct). | Flowering Apr–Jun. |
Habitat | Sandy soils, alkaline flats, red clays | Rocky slopes, limestone slopes with pinyons |
Elevation | 1200–2100 m (3900–6900 ft) | 2100–3000 m (6900–9800 ft) |
Distribution |
AZ; CO; NM; TX; UT; WY
|
AZ; NV; UT
|
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.) |
The current circumscription of Townsendia jonesii is, perhaps, too lumpy. Some lumps might be better treated as distinct species and/or included within the circum-scription of T. scapigera. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 20, p. 198. | FNA vol. 20, p. 202. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | T. mensana var. jonesii | |
Name authority | Beaman: Contr. Gray Herb. 183: 132, plate 22, fig. 4. (1957) | (Beaman) Reveal: Great Basin Naturalist 30: 35. (1970) |
Web links |