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smallhead Townsend daisy

annual Easter daisy, annual Townsend daisy

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

± erect;

internodes 0.1–1 mm, ± villous.

decumbent to erect;

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

Leaves

basal and cauline, ± spatulate to oblanceolate, 3–8(–18) × 1–2.5 mm (not fleshy), faces ± villous.

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

Involucres

± campanulate, 4–8 mm diam.

± hemispheric, 8–12(–16) mm diam.

Ray florets

13–17;

corollas white adaxially, laminae 5–8 mm, glabrous abaxially.

12–30+;

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

Disc florets

number unknown;

corollas 4 mm.

60–120+;

corollas 2.5–3.5+ mm.

Phyllaries

ca. 26 in 3–4 series, the longer ± lanceolate, 5–8 mm (l/w = 3–5), apices acute, abaxial faces ± strigose to villous.

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

± sessile.

at tips of stems.

Cypselae

3–4 mm, faces glabrous or glabrate;

pappi readily falling, of 15–20 subulate to setiform scales 3–5 mm (± connate basally).

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.

Townsendia microcephala

Townsendia annua

Phenology Flowering Jul. Flowering Apr–Jun(–Oct).
Habitat Rocky slopes Sandy soils, alkaline flats, red clays
Elevation 2600 m (8500 ft) 1200–2100 m (3900–6900 ft)
Distribution
from FNA
WY
[BONAP county map]
from FNA
AZ; CO; NM; TX; UT; WY
[WildflowerSearch map]
[BONAP county map]
Discussion

Of conservation concern.

The type of Townsendia microcephala may prove to be conspecific with that of T. spathulata.

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

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. 196. 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. leptotes, T. mensana, 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
Name authority Dorn: Madroño 39: 189, fig. 1. (1992) Beaman: Contr. Gray Herb. 183: 132, plate 22, fig. 4. (1957)
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