Doellingeria infirma

(Michaux) Greene
Pittonia 3: 52. 1896.
Common names: Cornel-leaved or cornel-leaf whitetop aster
Endemic
Basionym: Aster infirmus Michaux Fl. Bor.-Amer. 2: 109. 1803
Synonyms: Aster cornifolius Muhlenberg ex Willdenow Aster humilis Willdenow Diplopappus cornifolius (Muhlenberg ex Willdenow) Lessing ex Darlington Diplostephium cornifolium (Muhlenberg ex Willdenow) de Candolle Doellingeria cornifolia (Muhlenberg ex Willdenow) Nees Doellingeria humilis (Willdenow) Britton Doellingeria umbellata var. humilis (Willdenow) W. Stone
Treatment appears in FNA Volume 20. Treatment on page 45. Mentioned on page 43, 46.

Plants 40–120 cm (crowns short, woody). Stems 1, ascending to erect, slightly to strongly flexuous, striate, glabrous. Cauline leaves: mid and distal not crowded, blades broadly lanceolate to oblanceolate, 50–130 × 15–45 mm, reduced and narrower distally, bases cuneate, margins flat to ± involute, finely ciliate, apices acuminate, faces glabrous or sparsely hairy. Heads (1–)3–33(–78). Peduncles 1–10 mm (leafless or nearly so), sparsely to moderately canescent; bracts linear-lanceolate to broadly lanceolate. Involucres 3.8–6.8 mm. Phyllaries in 4–5 series, midveins usually swollen and translucent, apices narrowly rounded, glabrate. Rays (3–)4–8(–11); laminae 6–12(–14.5) × 1–3.3 mm. Disc florets 4–13(–20); corollas 4–7 mm, lobes 2.5–3.5 mm, 50–75% of limbs. Cypselae 1.8–3.8 mm, 6–10-ribbed, glabrous, rarely sparsely strigose, sometimes sparsely glandular; pappi: outer 0.5–1 mm, inner 3.9–5 mm. 2n = 18.


Phenology: Flowering mid summer–early fall.
Habitat: Rich loam and dry rocky soils, deciduous woods, mountains and adjacent plateaus
Elevation: 10–100 m

Distribution

V20-61-distribution-map.gif

Ala., Conn., Del., Fla., Ga., Ky., Md., Mass., N.J., N.Y., N.C., Ohio, Pa., R.I., S.C., Tenn., Va., W.Va.

Discussion

Doellingeria infirma is found in the Appalachian Mountains, the Piedmont and adjacent plateaus, to northern Florida.

Selected References

None.

Lower Taxa

None.

... more about "Doellingeria infirma"
John C. Semple +  and Jerry G. Chmielewski +
(Michaux) Greene +
Aster infirmus +
Cornel-leaved or cornel-leaf whitetop aster +
Ala. +, Conn. +, Del. +, Fla. +, Ga. +, Ky. +, Md. +, Mass. +, N.J. +, N.Y. +, N.C. +, Ohio +, Pa. +, R.I. +, S.C. +, Tenn. +, Va. +  and W.Va. +
10–100 m +
Rich loam and dry rocky soils, deciduous woods, mountains and adjacent plateaus +
Flowering mid summer–early fall. +
Aster cornifolius +, Aster humilis +, Diplopappus cornifolius +, Diplostephium cornifolium +, Doellingeria cornifolia +, Doellingeria humilis +  and Doellingeria umbellata var. humilis +
Doellingeria infirma +
Doellingeria +
species +