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

hoary Townsend daisy, hoary townsendia, silvery townsendia

annual Easter daisy, annual Townsend daisy

Habit Perennials, (1–)2–8(–12+) cm. Annuals, 3–12(–16+) cm.
Stems

decumbent to erect;

internodes (0.5–)2–6(–12+) mm, usually densely piloso-hirsute, sometimes strigoso-scabrellous (surfaces usually hidden by hairs).

decumbent to erect;

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

Leaves

basal and cauline, blades spatulate to narrowly oblanceolate, 3–12(–40+) × 1–2(–4+) mm, not fleshy, ± strigoso-scabrellous to strigillose.

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

Involucres

± campanulate to hemispheric, (6–)10–15(–20) mm diam.

± hemispheric, 8–12(–16) mm diam.

Ray florets

(8–)13–34+;

corollas white or pinkish adaxially, laminae 5–8(–12+) mm, abaxially usually glabrous, sometimes glandular-puberulent at bases.

12–30+;

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

Disc florets

60–80+;

corollas 4.5–6.5+ mm.

60–120+;

corollas 2.5–3.5+ mm.

Phyllaries

16–28+ in 3–4+ series, the longer ± lance-ovate to lanceolate, (6–)8–9(–12+) mm (l/w = 2.5–5), apices acute, abaxial faces strigose.

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

at tips of stems (usually surpassed by leaves).

at tips of stems.

Cypselae

3.5–4.5+ mm, faces hairy, hair tips glochidiform;

pappi persistent;

on ray cypselae 15–30 lanceolate or subulate to setiform scales 0.3–0.6 or 4–6+ mm;

on disc cypselae 15–30+ subulate to setiform scales 4–6+ 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 incana

Townsendia annua

Phenology Flowering Apr–Jul. Flowering Apr–Jun(–Oct).
Habitat Sandy soils, rocky benches, shales, with pinyons and junipers Sandy soils, alkaline flats, red clays
Elevation 1100–2200 m (3600–7200 ft) 1200–2100 m (3900–6900 ft)
Distribution
from FNA
AZ; CO; MT; NM; NV; UT; WY
[WildflowerSearch map]
[BONAP county map]
from FNA
AZ; CO; NM; TX; UT; WY
[WildflowerSearch map]
[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. 199. 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. 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. 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. arizonica
Name authority Nuttall: Trans. Amer. Philos. Soc., n. s. 7: 305. (1840) Beaman: Contr. Gray Herb. 183: 132, plate 22, fig. 4. (1957)
Web links