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tooth white-top-aster

Habit Plants 14–65 cm.
Stems

erect, puberulent.

Leaves

basal persistent at flowering, winged-petiolate, blades oblanceolate to obovate or spatulate, 20–150 mm, serrate near apices, puberulent;

cauline sessile, blades narrowly to broadly ovate, 10–110 × 4–30 mm, bases cuneate, margins serrate, distal becoming entire, apices acuminate to acute, faces puberulent.

Peduncle

bracts absent.

Involucres

4–7 mm at flowering.

Ovaries

fusiform-obconic, 0.8–2 mm, densely strigose;

pappi: inner series 4–5 mm.

Ray florets

3–7;

corolla tubes 2–4 mm, laminae 2–6 mm.

Disc florets

9–20;

corolla tubes 3–4 mm, lobes 0.6–2 mm.

Phyllaries

in 3–4 series, outer 2–4 mm, mid 3–5 mm, glabrate.

Heads

2–5 per branch, in corymbiform arrays.

2n

= 18.

Sericocarpus asteroides

Phenology Flowering mid summer–early fall.
Habitat Dry sandy, clay, and shaley open soils in fields and open mixed and pine woods, road margins, eastern deciduous forest
Elevation 0–1600 m (0–5200 ft)
Distribution
from FNA
AL; CT; DC; DE; FL; GA; KY; LA; MA; MD; ME; MS; NC; NH; NJ; NY; OH; PA; RI; SC; TN; VA; VT; WV
[WildflowerSearch map]
[BONAP county map]
Discussion

Collections of Sericocarpus asteroides purportedly from Indiana and Wisconsin are of questionable provenance or chance introductions.

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

Source FNA vol. 20, p. 103.
Parent taxa Asteraceae > tribe Astereae > Sericocarpus
Sibling taxa
S. linifolius, S. oregonensis, S. rigidus, S. tortifolius
Synonyms Conyza asteroides, Aster asteroides, Aster paternus
Name authority (Linnaeus) Britton: Gen. Sp. Aster., 150. (1832)
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