Townsendia florifera |
Townsendia montana |
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mountain townsendia, Wyoming Townsend daisy |
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Habit | Biennials (perhaps flowering first year, sometimes persisting), 3–12(–15+) cm. | Perennials, mostly 1–2+ cm (usually ± pulvinate). |
Stems | decumbent to erect; internodes 3–12(–15+) mm, piloso-strigose. |
± erect; internodes 0.1–1(–2) mm, strigose. |
Leaves | basal and cauline, blades spatulate to linear, 10–25(–50+) × 2–3(–8+) mm, not fleshy, faces ± strigose. |
basal and cauline, blades ± spatulate to oblanceolate, 10–35+ × 2–5+ mm, not fleshy, faces usually ± strigose, sometimes glabrous. |
Involucres | ± hemispheric or broader, 16–20(–30) mm diam. |
hemispheric to campanulate, 8–15 mm diam. |
Ray florets | 13–34+; corollas white or pinkish adaxially, laminae (8–)10–18+ mm, abaxially usually glandular-puberulent, rarely glabrous. |
13–21+; corollas usually white, sometimes pink or blue, adaxially, laminae 6–12 mm, abaxially usually glandular-puberulent, sometimes glabrous. |
Disc florets | (80–)100–150+; corollas (4–)5.5–6+ mm. |
30–60+; corollas 3.5–5.5 mm. |
Phyllaries | 24–30+ in 3–4+ series, the longer ± lanceolate, (6–)9–11+ mm (l/w = 2.5–5), apices acute, abaxial faces strigose. |
18–32 in 3–4+ series, the longer ± oblanceolate, 6–9 mm (l/w = 3–5), glabrate, or sparsely strigillose, apices obtuse to acute, abaxial faces glabrous. |
Heads | at tips of stems. |
usually on scapiform peduncles 5–60+ mm, sometimes sessile. |
Cypselae | (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. |
4.5 mm, faces glabrous or hairy at bases, hair tips glochidiform; pappi persistent; on ray cypselae 24–30+ subulate to setiform scales 5–6 mm; on disc cypselae 24–30+ subulate to setiform scales 5.5–6.6 mm. |
2n | = 18. |
= 18, 36. |
Townsendia florifera |
Townsendia montana |
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Phenology | Flowering Apr–Jun(–Aug). | Flowering (May–)Jul–Aug. |
Habitat | Gravelly flats with junipers and sagebrush | Meadows, granite and limestone ridges |
Elevation | 400–2300 m (1300–7500 ft) | 2000–3100 m (6600–10200 ft) |
Distribution |
ID; MT; NV; OR; UT; WA; WY |
CO; ID; MT; OR; UT; WY
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Discussion | 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.) |
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Source | FNA vol. 20, p. 198. | FNA vol. 20, p. 201. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Erigeron florifer, T. florifera var. watsonii | T. alpigena, T. alpigena var. caelilinensis, T. montana var. caelilinensis |
Name authority | (Hooker) A. Gray: Proc. Amer. Acad. Arts 16: 84. (1880) | M. E. Jones: Proc. Calif. Acad. Sci., ser. 2, 5: 697. (1895) |
Web links |