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Black Rock Townsend daisy

smooth Townsend daisy

Habit Perennials, 3–8(–12+) cm (usually ± pulvinate). Biennials or perennials, 10–35(–75+) cm (usually rhizomatous and/or stoloniferous).
Stems

± erect;

internodes 0.1–1 mm, ± scabrellous.

erect;

internodes (5–)10–15(–35) mm, strigillose.

Leaves

basal and cauline, ± spatulate to oblanceolate, 15–50(–80) × 2–6(–11) mm, little, if at all, fleshy, faces ± scabrellous.

basal and cauline, blades spatulate to oblanceolate or lance-linear, 15–45(–75+) × 2–10(–20) mm, not fleshy (margins strigoso-ciliolate), glabrous or glabrate.

Involucres

± hemispheric to campanulate, 10–15 mm diam.

± hemispheric or broader, 12–18+ mm diam.

Ray florets

12–21;

corollas white adaxially, laminae 6–12+ mm, glabrous abaxially.

20–34+;

corollas usually white or pinkish adaxially (abaxially blue to lavender), laminae 10–15(–25+) mm, glabrous abaxially.

Disc florets

60–80+;

corollas 3.5–5 mm.

80–150+;

corollas 4 mm.

Phyllaries

14–26 in 2–3+ series, the longer lance-ovate to lanceolate, 9–11 mm (l/w = 3–5), apices attenuate, abaxial faces piloso-strigose to strigose.

30–45 in 4–6+ series, the longer obovate to lance-ovate or lanceolate, 10–12(–14) mm (l/w = 3–5), apices obtuse to acute (some or all hard, ± apiculate), abaxial faces sparsely strigillose or glabrous.

Heads

on scapiform peduncles 30–80(–120) mm.

at tips of stems (seldom surpassed by leaves).

Cypselae

2.5–3.5 mm, faces hairy, hair tips entire;

pappi persistent, 16–20+ lanceolate to subulate scales 0.2–0.8 mm (± connate).

3–4(–5) mm, faces glabrous or ± stipitate-glandular, hair tips not forked or glochidiform;

pappi persistent, each a bidentate corona 0.1–0.4(–0.8) mm.

2n

= 18.

= 18.

Townsendia smithii

Townsendia formosa

Phenology Flowering May. Flowering Jul–Aug(–Sep).
Habitat Volcanic soils, pinyon or yellow pines Meadows, yellow-pine forests
Elevation 2000–2400 m (6600–7900 ft) 2400–2600 m (7900–8500 ft)
Distribution
from FNA
AZ
[BONAP county map]
from FNA
AZ; NM
[BONAP county map]
Discussion

Of conservation concern.

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

Source FNA vol. 20, p. 202. FNA vol. 20, p. 197.
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. spathulata, T. strigosa, T. texensis
T. annua, T. aprica, T. condensata, T. eximia, T. exscapa, T. fendleri, T. florifera, 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 L. M. Shultz & A. H. Holmgren: Brittonia 32: 144, fig. 1. (1980) Greene: Leafl. Bot. Observ. Crit. 1: 213. (1906)
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