The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Black Rock Townsend daisy

Habit Perennials, 3–8(–12+) cm (usually ± pulvinate).
Stems

± erect;

internodes 0.1–1 mm, ± scabrellous.

Leaves

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

Involucres

± hemispheric to campanulate, 10–15 mm diam.

Ray florets

12–21;

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

Disc florets

60–80+;

corollas 3.5–5 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.

Heads

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

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).

2n

= 18.

Townsendia smithii

Phenology Flowering May.
Habitat Volcanic soils, pinyon or yellow pines
Elevation 2000–2400 m (6600–7900 ft)
Distribution
from FNA
AZ
[BONAP county map]
Discussion

Of conservation concern.

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

Source FNA vol. 20, p. 202.
Parent taxa 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
Name authority L. M. Shultz & A. H. Holmgren: Brittonia 32: 144, fig. 1. (1980)
Web links