Townsendia jonesii |
Townsendia mensana |
|
---|---|---|
Jones' Townsend daisy, Jones' townsendia |
table Townsend daisy |
|
Habit | Perennials, 1–2(–4) cm (usually ± pulvinate). | Perennials, 1–3 cm (± pulvinate). |
Stems | ± erect; internodes 0.1–1 mm, ± scabrellous to strigose. |
± erect; internodes 0.1–1 mm, ± pilose. |
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 narrowly oblanceolate to lance-linear, 5–40+ × 0.6–2.5+ mm, not fleshy, faces ± strigoso-sericeous to strigose. |
Involucres | ± campanulate, 8–14 mm diam. |
± campanulate, 7–10 mm diam. |
Ray florets | 13–21; corollas white adaxially, laminae 5–7+ mm, ± densely glandular-puberulent abaxially. |
13–21+; corollas white adaxially, laminae 4–8+ mm, glandular-puberulent abaxially. |
Disc florets | 40–80+; corollas 4.5–5+ mm. |
40–60+; corollas (3.5–)4.5–6 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. |
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. |
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. |
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. |
Townsendia jonesii |
Townsendia mensana |
|
Phenology | Flowering Apr–Jun. | Flowering May. |
Habitat | Rocky slopes, limestone slopes with pinyons | Openings with junipers and pinyons |
Elevation | 2100–3000 m (6900–9800 ft) | 1700–2700 m (5600–8900 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. 201. |
Parent taxa | Asteraceae > tribe Astereae > Townsendia | Asteraceae > tribe Astereae > Townsendia |
Sibling taxa | ||
Synonyms | T. mensana var. jonesii | |
Name authority | (Beaman) Reveal: Great Basin Naturalist 30: 35. (1970) | M. E. Jones: Contr. W. Bot. 13: 15. (1910) |
Web links |