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table Townsend daisy

Texas Townsend daisy

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

± erect;

internodes 0.1–1 mm, ± pilose.

decumbent to erect;

internodes 5–20+ mm, strigose.

Leaves

basal and cauline, blades narrowly oblanceolate to lance-linear, 5–40+ × 0.6–2.5+ mm, not fleshy, faces ± strigoso-sericeous to strigose.

basal and cauline, blades oblanceolate to lance-linear, 20–45(–60+) × 2–4(–6+) mm, not fleshy, faces ± strigose.

Involucres

± campanulate, 7–10 mm diam.

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

Ray florets

13–21+;

corollas white adaxially, laminae 4–8+ mm, glandular-puberulent abaxially.

25–40+;

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

Disc florets

40–60+;

corollas (3.5–)4.5–6 mm.

80–120+;

corollas 3.5–5 mm.

Phyllaries

25–50+ in 4–5+ series, the longer narrowly lanceolate, 6–8+ mm (l/w = 5–6), apices acute, abaxial faces sparsely strigillose or glabrate.

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

± sessile.

at tips of stems (usually surpassed by leaves).

Cypselae

3–3.5 mm, faces hairy, hair tips glochidiform;

pappi persistent;

on ray cypselae 15–35 subulate to setiform scales 0.5–1.5 or 4–5 mm;

on disc cypselae 15–35 subulate to setiform scales 4–6.5 mm.

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 mensana

Townsendia texensis

Phenology Flowering May. Flowering May–Jun.
Habitat Openings with junipers and pinyons Cherts, limestone slopes
Elevation 1700–2700 m (5600–8900 ft) 1200 m (3900 ft)
Distribution
from FNA
UT
[BONAP county map]
from FNA
OK; TX
[BONAP county map]
Discussion

Of conservation concern.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 20, p. 201. FNA vol. 20, p. 196.
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. microcephala, T. minima, T. montana, T. parryi, T. rothrockii, T. scapigera, T. smithii, T. spathulata, T. strigosa, T. texensis
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
Name authority M. E. Jones: Contr. W. Bot. 13: 15. (1910) Larsen: Ann. Missouri Bot. Gard. 14: 15, plate 3. (1927)
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