Townsendia jonesii |
Townsendia minima |
|
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Jones' Townsend daisy, Jones' townsendia |
Wyoming Townsend daisy |
|
Habit | Perennials, 1–2(–4) cm (usually ± pulvinate). | Perennials, 1–2+ cm (± pulvinate). |
Stems | ± erect; internodes 0.1–1 mm, ± scabrellous to strigose. |
± erect; internodes 0.1–1+ mm, ± strigose. |
Leaves | basal and cauline, blades ± spatulate to oblanceolate, 7–15(–35+) × 1–2(–4+) mm, not fleshy, faces ± scabrellous to strigose. |
basal and cauline, blades ± spatulate, 5–10(–15+) × 1.5–3+ mm, ± fleshy, faces sparsely strigose or glabrate. |
Involucres | ± campanulate, 8–14 mm diam. |
± campanulate, 6–10 mm diam. |
Ray florets | 13–21; corollas white adaxially, laminae 5–7+ mm, ± densely glandular-puberulent abaxially. |
8–21; corollas white or pinkish adaxially, laminae 4–8 mm, abaxially usually glabrous, sometimes sparsely glandular-puberulent. |
Disc florets | 40–80+; corollas 4.5–5+ mm. |
20–40+; corollas 3–4 mm. |
Phyllaries | 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. |
20–28 in 3–4+ series, the longer ± lanceolate, 5–7 mm (l/w = 2.5–5), sometimes glabrate, apices obtuse to acute, abaxial faces usually ± strigillose. |
Heads | usually ± sessile, sometimes on scapiform peduncles 5–15+ mm. |
± sessile. |
Cypselae | 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. |
2–3.5 mm, faces hairy, hair tips entire or forked; pappi persistent, 15–30 subulate to setiform scales 3–5 mm. |
2n | = 27 (apomicts). |
|
Townsendia jonesii |
Townsendia minima |
|
Phenology | Flowering Apr–Jun. | Flowering Apr–Jun. |
Habitat | Rocky slopes, limestone slopes with pinyons | Rocky slopes, talus |
Elevation | 2100–3000 m (6900–9800 ft) | 1800–3100 m (5900–10200 ft) |
Distribution |
AZ; NV; UT
|
UT
|
Discussion | 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.) |
Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 20, p. 202. | FNA vol. 20, p. 202. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | T. mensana var. jonesii | T. alpigena var. minima |
Name authority | (Beaman) Reveal: Great Basin Naturalist 30: 35. (1970) | Eastwood: Leafl. W. Bot. 1: 206. (1936) |
Web links |