Townsendia texensis |
Townsendia montana |
|
---|---|---|
Texas Townsend daisy |
mountain townsendia, Wyoming Townsend daisy |
|
Habit | Biennials (sometimes persisting), 15–25+ cm. | Perennials, mostly 1–2+ cm (usually ± pulvinate). |
Stems | decumbent to erect; internodes 5–20+ mm, strigose. |
± erect; internodes 0.1–1(–2) mm, strigose. |
Leaves | basal and cauline, blades oblanceolate to lance-linear, 20–45(–60+) × 2–4(–6+) 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 | ± campanulate to hemispheric, 12–15(–20+) mm diam. |
hemispheric to campanulate, 8–15 mm diam. |
Ray florets | 25–40+; corollas white or purplish adaxially, laminae 9–18 mm, abaxially usually glabrous, sometimes glandular-puberulent. |
13–21+; corollas usually white, sometimes pink or blue, adaxially, laminae 6–12 mm, abaxially usually glandular-puberulent, sometimes glabrous. |
Disc florets | 80–120+; corollas 3.5–5 mm. |
30–60+; corollas 3.5–5.5 mm. |
Phyllaries | 40–44 in 4–5+ series, the longer ± lanceolate, 5–9+ mm (l/w = 2.5–5), apices acute to attenuate (soft, not apiculate), 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 surpassed by leaves). |
usually on scapiform peduncles 5–60+ mm, sometimes sessile. |
Cypselae | 3.5–4 mm, faces hairy, hair tips glochidiform; pappi persistent; on ray cypselae ± 20 lanceolate to subulate scales 0.5–0.8(–2+) mm; on disc cypselae 16–24 subulate to setiform scales 5 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 texensis |
Townsendia montana |
|
Phenology | Flowering May–Jun. | Flowering (May–)Jul–Aug. |
Habitat | Cherts, limestone slopes | Meadows, granite and limestone ridges |
Elevation | 1200 m (3900 ft) | 2000–3100 m (6600–10200 ft) |
Distribution |
OK; TX |
CO; ID; MT; OR; UT; WY
|
Source | FNA vol. 20, p. 196. | FNA vol. 20, p. 201. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | T. alpigena, T. alpigena var. caelilinensis, T. montana var. caelilinensis | |
Name authority | Larsen: Ann. Missouri Bot. Gard. 14: 15, plate 3. (1927) | M. E. Jones: Proc. Calif. Acad. Sci., ser. 2, 5: 697. (1895) |
Web links |