Townsendia parryi |
Townsendia florifera |
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Parry's Townsend daisy, Parry's townsendia |
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Habit | Biennials or perennials, (2–)5–12(–25+) cm. | Biennials (perhaps flowering first year, sometimes persisting), 3–12(–15+) cm. |
Stems | decumbent to erect; internodes (0.1–)2–12(–25+) mm, strigose. |
decumbent to erect; internodes 3–12(–15+) mm, piloso-strigose. |
Leaves | basal and cauline, blades spatulate to oblanceolate, 15–35(–60+) × 2–5(–8+) mm, not fleshy, faces ± strigose or glabrate Heads at tips of stems (usually surpassed by leaves). |
basal and cauline, blades spatulate to linear, 10–25(–50+) × 2–3(–8+) mm, not fleshy, faces ± strigose. |
Involucres | ± hemispheric or broader, 12–25(–35+) mm diam. |
± hemispheric or broader, 16–20(–30) mm diam. |
Ray florets | 21–67+; corollas usually blue or purplish, rarely white or pinkish, adaxially, laminae 7–15(–20+) mm, glabrous abaxially. |
13–34+; corollas white or pinkish adaxially, laminae (8–)10–18+ mm, abaxially usually glandular-puberulent, rarely glabrous. |
Disc florets | 150–200+; corollas 4.5–6 mm. |
(80–)100–150+; corollas (4–)5.5–6+ mm. |
Phyllaries | 40–64 in 4–7+ series, the longer ± lanceolate to lance-linear, 10–15+ mm (l/w = 4–6), apices acute to attenuate (soft, not apiculate), abaxial faces ± strigose or glabrous. |
24–30+ in 3–4+ series, the longer ± lanceolate, (6–)9–11+ mm (l/w = 2.5–5), apices acute, abaxial faces strigose. |
Heads | at tips of stems. |
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Cypselae | 3–4.5+ mm, hairy, hair tips forked or entire; pappi persistent, of 24–30+ subulate to setiform scales 3.5–4(–7.5) 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. |
= 18. |
Townsendia parryi |
Townsendia florifera |
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Phenology | Flowering May–Aug. | Flowering Apr–Jun(–Aug). |
Habitat | Meadows, grassy slopes, gravelly benches, talus | Gravelly flats with junipers and sagebrush |
Elevation | 1500–3000 m (4900–9800 ft) | 400–2300 m (1300–7500 ft) |
Distribution |
ID; MT; NV; OR; UT; WY; AB; BC
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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. 197. | FNA vol. 20, p. 198. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Erigeron florifer, T. florifera var. watsonii | |
Name authority | D. C. Eaton: Amer. Naturalist 8: 212. (1874) | (Hooker) A. Gray: Proc. Amer. Acad. Arts 16: 84. (1880) |
Web links |