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eastern western-daisy, entireleaf western daisy

Texas western-daisy

Habit Annuals (biennials?), usually fibrous-rooted. Annuals, taprooted.
Stems

usually 1, erect to decumbent-ascending.

usually 3–8, decumbent-ascending, sometimes 1, erect.

Leaves

basal and proximal cauline 30–60 × 7–22 mm.

basal and proximal cauline 20–45 × 5–11 mm.

Involucres

3.5–6 mm.

4–6.8 mm.

Ray florets

(8–)16–26;

corolla laminae white, occasionally drying with bluish midstripe abaxially, (6–)8–17 mm.

18–35;

corolla laminae white or abaxially lavender, often drying pinkish, 8–13 mm.

Disc floret

corollas 2.5–3.7 mm.

corollas 3.2–3.8 mm.

Cypselae

(1.4–)1.6–2(–2.2) × 0.9–1.1 mm, faces minutely papillate-pebbly, linear striations barely discernible, usually glabrous, sometimes sparsely glochidiate-hairy distally.

1.4–2.1 × 0.7–1.2 mm, faces minutely, glandular-papillate-pebbly, uniformly sparsely to moderately glochidiate-hairy.

2n

= 8.

= 6.

Astranthium integrifolium

Astranthium robustum

Phenology Flowering Apr–Jun(–Jul). Flowering Mar–Jun.
Habitat Rocky (limestone) banks and ridges, alluvial fields, stream banks and terraces, open juniper woods, glades, roadsides Disturbed sites in sandy or rocky soil, mesas, canyons, pine flats, roadsides, ditches
Elevation 50–300 m (200–1000 ft) 800–1400 m (2600–4600 ft)
Distribution
from FNA
AL; GA; KY; MS; TN
[WildflowerSearch map]
[BONAP county map]
from FNA
TX
[BONAP county map]
Discussion

Astranthium robustum is known only from the trans-Pecos region.

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

Source FNA vol. 20, p. 204. FNA vol. 20, p. 204.
Parent taxa Asteraceae > tribe Astereae > Astranthium Asteraceae > tribe Astereae > Astranthium
Sibling taxa
A. ciliatum, A. robustum
A. ciliatum, A. integrifolium
Synonyms Bellis integrifolia A. integrifolium var. robustum
Name authority (Michaux) Nuttall: Trans. Amer. Philos. Soc., n. s. 7: 312. (1840) (Shinners) De Jong: Publ. Mus. Michigan State Univ., Biol. Ser. 2: 521. (1965)
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