Sericocarpus asteroides

(Linnaeus) Britton

Gen. Sp. Aster., 150. 1832.

Common names: Toothed white-topped aster
IllustratedEndemic
Basionym: Conyza asteroides Linnaeus Sp. Pl. 2: 861. 1753
Synonyms: Aster asteroides (Linnaeus) MacMillan Aster paternus Cronquist
Treatment appears in FNA Volume 20. Treatment on page 103.

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. Heads 2–5 per branch, in corymbiform arrays. Involucres 4–7 mm at flowering. Peduncle bracts absent. Phyllaries in 3–4 series, outer 2–4 mm, mid 3–5 mm, glabrate. 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. Ovaries fusiform-obconic, 0.8–2 mm, densely strigose; pappi: inner series 4–5 mm. 2n = 18.


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

Distribution

V20-200-distribution-map.gif

Ala., Conn., Del., D.C., Fla., Ga., Ky., La., Maine, Md., Mass., Miss., N.H., N.J., N.Y., N.C., Ohio, Pa., R.I., S.C., Tenn., Vt., Va., W.Va.

Discussion

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

Selected References

None.

Lower Taxa

None.

"[" is not declared as a valid unit of measurement for this property."]" is not declared as a valid unit of measurement for this property.

... more about "Sericocarpus asteroides"
not tailed +, rounded +  and obtuse +
distinct +
acuminate;acute +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
John C. Semple +  and Michelle R. Leonard +
(Linnaeus) Britton +
winged-petiolate +
cuneate +
indurate +
Conyza asteroides +
compound +  and simple +
1 cm10 mm <br />0.01 m <br /> (11 cm110 mm <br />0.11 m <br />) +
ovate;oblanceolate;obovate or spatulate +
2 cm20 mm <br />0.02 m <br /> (15 cm150 mm <br />0.15 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (3 cm30 mm <br />0.03 m <br />) +
rugulose +  and muricate +
ovate +, obovate +  and linear +
Toothed white-topped aster +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
not 2-lipped +  and actinomorphic +
white +  and cream +
fusiform +  and obconic terete +
fertile +  and bisexual +
fertile +  and bisexual +
Ala. +, Conn. +, Del. +, D.C. +, Fla. +, Ga. +, Ky. +, La. +, Maine +, Md. +, Mass. +, Miss. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Pa. +, R.I. +, S.C. +, Tenn. +, Vt. +, Va. +  and W.Va. +
0–1600 m +
puberulent +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Dry sandy, clay, and shaley open soils in fields and open mixed and pine woods, road margins, eastern deciduous forest +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
petiolate +  and sessile +
cauline +  and basal +
erect;spreading +
triangular +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
2-carpellate +
fusiform-obconic +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
white +  and tan or rust +
persistent +
Flowering mid summer–early fall. +
thumbnail--shaped +
Gen. Sp. Aster., +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
Illustrated +  and Endemic +
puberulent +
appendaged +  and truncate +
papillate +  and smooth +
Aster asteroides +  and Aster paternus +
Sericocarpus asteroides +
Sericocarpus +
species +
15 cm150 mm <br />0.15 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
dark green +