Townsendia spathulata |
Townsendia florifera |
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sword Townsend daisy |
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Habit | Perennials, 1–2 cm (usually ± pulvinate). | Biennials (perhaps flowering first year, sometimes persisting), 3–12(–15+) cm. |
Stems | ± erect; internodes 0.1–1 mm, ± villous. |
decumbent to erect; internodes 3–12(–15+) mm, piloso-strigose. |
Leaves | basal and cauline, ± spatulate, 7–10(–20) × 1.5–2(–4) mm little, it at all, fleshy, faces ± villous or sericeous. |
basal and cauline, blades spatulate to linear, 10–25(–50+) × 2–3(–8+) mm, not fleshy, faces ± strigose. |
Involucres | ± urceolate, 6–12(–16) mm diam. |
± hemispheric or broader, 16–20(–30) mm diam. |
Ray florets | 12–30+; corollas white to pinkish adaxially, laminae 3–12 mm, abaxially usually glandular-puberulent, sometimes glabrous. |
13–34+; corollas white or pinkish adaxially, laminae (8–)10–18+ mm, abaxially usually glandular-puberulent, rarely glabrous. |
Disc florets | 16–30+; corollas 4–5+ mm. |
(80–)100–150+; corollas (4–)5.5–6+ mm. |
Phyllaries | 16–24+ in 3–4 series, the longer lance-ovate to lanceolate, 6–8(–9) mm (l/w = 4–7), apices usually acute, sometimes attenuate, abaxial faces ± villous to 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 | ± sessile. |
at tips of stems. |
Cypselae | 2.5–4 mm, faces hairy, hair tips glochidiform or forked; pappi readily falling, of 14–30 subulate to setiform scales 4.5–6+ mm (± connate basally). |
(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 spathulata |
Townsendia florifera |
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Phenology | Flowering May–Jun. | Flowering Apr–Jun(–Aug). |
Habitat | Open ridges | Gravelly flats with junipers and sagebrush |
Elevation | 1600–2300 m (5200–7500 ft) | 400–2300 m (1300–7500 ft) |
Distribution |
MT; WY
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ID; MT; NV; OR; UT; WA; WY |
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. 196. | FNA vol. 20, p. 198. |
Parent taxa | Asteraceae > tribe Astereae > Townsendia | Asteraceae > tribe Astereae > Townsendia |
Sibling taxa | ||
Synonyms | Erigeron florifer, T. florifera var. watsonii | |
Name authority | Nuttall: Trans. Amer. Philos. Soc., n. s. 7: 305. (1840) | (Hooker) A. Gray: Proc. Amer. Acad. Arts 16: 84. (1880) |
Web links |