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Texas Townsend daisy

common Townsend daisy, common townsendia, slender townsendia

Habit Biennials (sometimes persisting), 15–25+ cm. Perennials, 1–3 cm (± pulvinate).
Stems

decumbent to erect;

internodes 5–20+ mm, strigose.

± erect;

internodes 0.1–1 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 narrowly obovate, (8–)12–25(–40+) × 1–2(–3+) mm, ± fleshy, faces ± strigose to strigillose or glabrate.

Involucres

± campanulate to hemispheric, 12–15(–20+) mm diam.

± campanulate, 8–12(–20+) mm diam.

Ray florets

25–40+;

corollas white or purplish adaxially, laminae 9–18 mm, abaxially usually glabrous, sometimes glandular-puberulent.

13–34+;

corollas usually white or pinkish, seldom blue, adaxially, laminae 5–7(–12+) mm, abaxially usually glabrous, sometimes sparsely glandular-puberulent.

Disc florets

80–120+;

corollas 3.5–5 mm.

40–80+;

corollas 4–6+ 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.

40–50+ in 4–5+ series, the longer ± lanceolate, 7–9(–12) mm (l/w = 2.5–5), apices acute to attenuate, abaxial faces sparsely strigose or glabrous.

Heads

at tips of stems (usually surpassed by leaves).

usually ± sessile, rarely on scapiform peduncles 5–15+ mm.

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.

3+ mm, faces glabrous or sparsely hairy (hairs mostly at bases), hair tips glochidiform;

pappi persistent;

on ray cypselae ca. 25 lanceolate or subulate to setiform scales 0–1 or 5–8 mm;

on disc cypselae ca. 30 subulate to setiform scales 5–8 mm.

2n

= 18.

= 18.

Townsendia texensis

Townsendia leptotes

Phenology Flowering May–Jun. Flowering Jun–Jul.
Habitat Cherts, limestone slopes Rocky ridges, sandy slopes
Elevation 1200 m (3900 ft) (2300–)2900–3800 m ((7500–)9500–12500 ft)
Distribution
from FNA
OK; TX
[BONAP county map]
from FNA
CA; CO; ID; MT; NM; NV; UT; WY
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 20, p. 196. FNA vol. 20, p. 203.
Parent taxa Asteraceae > tribe Astereae > Townsendia Asteraceae > tribe Astereae > Townsendia
Sibling taxa
T. annua, T. aprica, T. condensata, T. eximia, T. exscapa, T. fendleri, T. florifera, T. formosa, T. glabella, T. grandiflora, T. gypsophila, T. hookeri, T. incana, T. jonesii, T. leptotes, T. mensana, T. microcephala, T. minima, T. montana, T. parryi, T. rothrockii, T. scapigera, T. smithii, T. spathulata, T. strigosa
T. annua, T. aprica, T. condensata, T. eximia, T. exscapa, T. fendleri, T. florifera, T. formosa, T. glabella, T. grandiflora, T. gypsophila, T. hookeri, T. incana, T. jonesii, T. mensana, T. microcephala, T. minima, T. montana, T. parryi, T. rothrockii, T. scapigera, T. smithii, T. spathulata, T. strigosa, T. texensis
Synonyms T. sericea var. leptotes
Name authority Larsen: Ann. Missouri Bot. Gard. 14: 15, plate 3. (1927) (A. Gray) Osterhout: Muhlenbergia 4: 69. (1908)
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