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woolly paperflower

Baker's paperflower

Habit Biennials or perennials (rarely flowering first year), 10–45(–60+) cm. Biennials or perennials (rarely flowering first year), 5–12(–20+) cm.
Stems

arachno-villous (gray to gray-green).

arachno-villous (gray to gray-green).

Peduncles

(0.5–)1–3(–5+) mm.

15–35(–50) mm.

Involucres

4–5(–7) mm.

7–9(–12) mm.

Disc florets

5–8(–12).

(10–)12–15(–20).

Heads

in ± crowded, corymbiform arrays.

in ± loose, corymbiform arrays.

Cypselae

usually glabrous, sometimes gland-dotted;

pappi of 4–6 lanceolate to lance-subulate scales 2.5–3+ mm.

usually glabrous, sometimes gland-dotted;

pappi of 4–5 ± oblong scales 1.5–2 mm.

Rays

(2–)3(–5);

laminae 3–4(–6) mm, spreading in fruit.

4–5(–8);

laminae 8–15+ mm, spreading in fruit.

2n

= 32.

= 32.

Psilostrophe villosa

Psilostrophe bakeri

Phenology Flowering (Mar–)May–Aug(–Oct). Flowering May–Jun.
Habitat Grasslands, limestone soils, gypseous soils, caliche Rocky, often alkaline, slopes, knolls
Elevation 300–900 m (1000–3000 ft) 1300–2000 m (4300–6600 ft)
Distribution
from FNA
KS; NM; OK; TX
[WildflowerSearch map]
[BONAP county map]
from FNA
CO; ID
[WildflowerSearch map]
[BONAP county map]
Discussion

In trans-Pecos Texas, Psilostrophe villosa has been collected within 10 km or so of the Rio Grande; it probably occurs in Mexico. Within 100 km or so of the New Mexico-Texas border, P. villosa and P. tagetina intergrade; B. L. Turner et al. (1988) treated P. villosa as P. tagetina var. cerifera.

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

Source FNA vol. 21, p. 455. FNA vol. 21, p. 455.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Gaillardiinae > Psilostrophe Asteraceae > tribe Heliantheae > subtribe Gaillardiinae > Psilostrophe
Sibling taxa
P. bakeri, P. cooperi, P. gnaphalodes, P. sparsiflora, P. tagetina
P. cooperi, P. gnaphalodes, P. sparsiflora, P. tagetina, P. villosa
Synonyms P. tagetina var. cerifera
Name authority Rydberg ex Britton: Man. Fl. N. States, 1006. (1901) Greene: Pl. Baker. 3: 29. (1901)
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