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annual Easter daisy, annual Townsend daisy

Jones' Townsend daisy, Jones' townsendia

Habit Annuals, 3–12(–16+) cm. Perennials, 1–2(–4) cm (usually ± pulvinate).
Stems

decumbent to erect;

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

± erect;

internodes 0.1–1 mm, ± scabrellous to strigose.

Leaves

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

basal and cauline, blades ± spatulate to oblanceolate, 7–15(–35+) × 1–2(–4+) mm, not fleshy, faces ± scabrellous to strigose.

Involucres

± hemispheric, 8–12(–16) mm diam.

± campanulate, 8–14 mm diam.

Ray florets

12–30+;

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

13–21;

corollas white adaxially, laminae 5–7+ mm, ± densely glandular-puberulent abaxially.

Disc florets

60–120+;

corollas 2.5–3.5+ mm.

40–80+;

corollas 4.5–5+ mm.

Phyllaries

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.

20–28 in 3–4+ series, the longer ± lanceolate, 4–8 mm (l/w = 2.5–5), sometimes glabrate, apices acute, abaxial faces usually sparsely strigillose.

Heads

at tips of stems.

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

Cypselae

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.

2–3(–4+) mm, faces hairy, hair tips glochidiform or forked;

pappi persistent;

on ray cypselae 20–24 subulate to setiform scales 3–4+ mm;

on disc cypselae 20–24 subulate to setiform scales 4–6(–8) mm.

2n

= 18.

Townsendia annua

Townsendia jonesii

Phenology Flowering Apr–Jun(–Oct). Flowering Apr–Jun.
Habitat Sandy soils, alkaline flats, red clays Rocky slopes, limestone slopes with pinyons
Elevation 1200–2100 m (3900–6900 ft) 2100–3000 m (6900–9800 ft)
Distribution
from FNA
AZ; CO; NM; TX; UT; WY
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[BONAP county map]
from FNA
AZ; NV; UT
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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.)

The current circumscription of Townsendia jonesii is, perhaps, too lumpy. Some lumps might be better treated as distinct species and/or included within the circum-scription of T. scapigera.

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

Source FNA vol. 20, p. 198. FNA vol. 20, p. 202.
Parent taxa Asteraceae > tribe Astereae > Townsendia Asteraceae > tribe Astereae > Townsendia
Sibling taxa
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
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. 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. mensana var. jonesii
Name authority Beaman: Contr. Gray Herb. 183: 132, plate 22, fig. 4. (1957) (Beaman) Reveal: Great Basin Naturalist 30: 35. (1970)
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