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common Townsend daisy, common townsendia, slender townsendia

annual Easter daisy, annual Townsend daisy

Habit Perennials, 1–3 cm (± pulvinate). Annuals, 3–12(–16+) cm.
Stems

± erect;

internodes 0.1–1 mm, strigose.

decumbent to erect;

internodes (1–)3–12(–18+) mm, strigose.

Leaves

basal and cauline, blades spatulate to narrowly obovate, (8–)12–25(–40+) × 1–2(–3+) mm, ± fleshy, faces ± strigose to strigillose or glabrate.

mostly cauline, blades spatulate to narrowly oblanceolate, 8–12(–25+) × 1–3(–5+) mm, not fleshy, faces ± strigillose.

Involucres

± campanulate, 8–12(–20+) mm diam.

± hemispheric, 8–12(–16) mm diam.

Ray florets

13–34+;

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

12–30+;

corollas white or pinkish to lavender adaxially, laminae 5–8+ mm, glabrous abaxially.

Disc florets

40–80+;

corollas 4–6+ mm.

60–120+;

corollas 2.5–3.5+ mm.

Phyllaries

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.

26–30+ in 3+ series, the longer ± lance-ovate to oblanceolate, 5–6+ mm (l/w = 2.5–5), apices acute, abaxial faces strigillose to glabrate.

Heads

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

at tips of stems.

Cypselae

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.

2–3 mm, faces hairy, hair tips glochidiform;

pappi persistent;

on ray cypselae ± 10 lanceolate scales 0.2–0.5(–1) mm;

on disc cypselae 20+ subulate scales 1–2.5(–4) mm.

2n

= 18.

= 18.

Townsendia leptotes

Townsendia annua

Phenology Flowering Jun–Jul. Flowering Apr–Jun(–Oct).
Habitat Rocky ridges, sandy slopes Sandy soils, alkaline flats, red clays
Elevation (2300–)2900–3800 m ((7500–)9500–12500 ft) 1200–2100 m (3900–6900 ft)
Distribution
from FNA
CA; CO; ID; MT; NM; NV; UT; WY
[WildflowerSearch map]
[BONAP county map]
from FNA
AZ; CO; NM; TX; UT; WY
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[BONAP county map]
Discussion

The type of Townsendia annua may prove to be conspecific with that of T. strigosa.

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

Source FNA vol. 20, p. 203. FNA vol. 20, p. 198.
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. mensana, T. microcephala, T. minima, T. montana, T. parryi, T. rothrockii, T. scapigera, T. smithii, T. spathulata, T. strigosa, T. texensis
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. texensis
Synonyms T. sericea var. leptotes
Name authority (A. Gray) Osterhout: Muhlenbergia 4: 69. (1908) Beaman: Contr. Gray Herb. 183: 132, plate 22, fig. 4. (1957)
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