Townsendia texensis |
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Texas Townsend daisy |
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Habit | Biennials (sometimes persisting), 15–25+ cm. |
Stems | decumbent to erect; internodes 5–20+ mm, strigose. |
Leaves | basal and cauline, blades oblanceolate to lance-linear, 20–45(–60+) × 2–4(–6+) mm, not fleshy, faces ± strigose. |
Involucres | ± campanulate to hemispheric, 12–15(–20+) mm diam. |
Ray florets | 25–40+; corollas white or purplish adaxially, laminae 9–18 mm, abaxially usually glabrous, sometimes glandular-puberulent. |
Disc florets | 80–120+; corollas 3.5–5 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. |
Heads | at tips of stems (usually surpassed by leaves). |
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. |
2n | = 18. |
Townsendia texensis |
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Phenology | Flowering May–Jun. |
Habitat | Cherts, limestone slopes |
Elevation | 1200 m (3900 ft) |
Distribution |
OK; TX |
Source | FNA vol. 20, p. 196. |
Parent taxa | |
Sibling taxa | |
Name authority | Larsen: Ann. Missouri Bot. Gard. 14: 15, plate 3. (1927) |
Web links |