Townsendia jonesii |
Townsendia florifera |
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Jones' Townsend daisy, Jones' townsendia |
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Habit | Perennials, 1–2(–4) cm (usually ± pulvinate). | Biennials (perhaps flowering first year, sometimes persisting), 3–12(–15+) cm. |
Stems | ± erect; internodes 0.1–1 mm, ± scabrellous to strigose. |
decumbent to erect; internodes 3–12(–15+) mm, piloso-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 to linear, 10–25(–50+) × 2–3(–8+) mm, not fleshy, faces ± strigose. |
Involucres | ± campanulate, 8–14 mm diam. |
± hemispheric or broader, 16–20(–30) mm diam. |
Ray florets | 13–21; corollas white adaxially, laminae 5–7+ mm, ± densely glandular-puberulent abaxially. |
13–34+; corollas white or pinkish adaxially, laminae (8–)10–18+ mm, abaxially usually glandular-puberulent, rarely glabrous. |
Disc florets | 40–80+; corollas 4.5–5+ mm. |
(80–)100–150+; corollas (4–)5.5–6+ 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. |
24–30+ in 3–4+ series, the longer ± lanceolate, (6–)9–11+ mm (l/w = 2.5–5), apices acute, abaxial faces strigose. |
Heads | usually ± sessile, sometimes on scapiform peduncles 5–15+ mm. |
at tips of stems. |
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. |
(3.5–)4–5+ mm, faces hairy, hair tips entire or forked; pappi persistent; on ray cypselae 20–30 subulate to setiform scales 2–6 mm; on disc cypselae 20–30+ subulate to setiform scales (4–)5–7+ mm. |
2n | = 18. |
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Townsendia jonesii |
Townsendia florifera |
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Phenology | Flowering Apr–Jun. | Flowering Apr–Jun(–Aug). |
Habitat | Rocky slopes, limestone slopes with pinyons | Gravelly flats with junipers and sagebrush |
Elevation | 2100–3000 m (6900–9800 ft) | 400–2300 m (1300–7500 ft) |
Distribution |
AZ; NV; UT
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ID; MT; NV; OR; UT; WA; WY |
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.) |
J. H. Beaman (1957) considered plants intermediate between Townsendia florifera and T. parryi to be hybrids. Such intermediates occur in Montana (e.g., Jones in 1905 from Gallatin Co. and Suksdorf 282 from Park Co.), outside the known distribution of T. florifera. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 20, p. 202. | FNA vol. 20, p. 198. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | T. mensana var. jonesii | Erigeron florifer, T. florifera var. watsonii |
Name authority | (Beaman) Reveal: Great Basin Naturalist 30: 35. (1970) | (Hooker) A. Gray: Proc. Amer. Acad. Arts 16: 84. (1880) |
Web links |