Symphyotrichum lanceolatum var. interior

(Wiegand) G. L. Nesom

Phytologia 77: 284. 1995.

Endemic
Basionym: Aster interior Wiegand Rhodora 35: 35. 1933
Synonyms: Aster lanceolatus subsp. interior (Wiegand) A. G. Jones Aster simplex var. interior (Wiegand) Cronquist
Treatment appears in FNA Volume 20. Treatment on page 520. Mentioned on page 514, 515, 519.

Stems usually slender, sometimes stout, glabrous or hairy in lines. Leaf blades linear-lanceolate to lanceolate, distal cauline margins entire. Heads congested on lateral branches of arrays, often developing on short peduncles along most of the branch, usually not subtended by large foliaceous bracts. Involucres 3–4 mm. Phyllaries: outer 1.8–3.4 × ca. 0.4, inner 3.5–3.7 × 0.4–0.5 mm, outer 1/3–2/3 length of inner. Ray florets 22–24; corollas white, laminae 3.9–5.8 mm. Disc florets 20–23; corollas 2.8–3.1 mm, limbs 1.6–1.8 mm, lobes 0.5–0.7 mm. Cypselae 0.6–0.8 mm; pappi 2.9–3.3 mm. 2n = 48, 64.


Phenology: Flowering Jul–Oct.
Habitat: Bottomlands, along streams
Elevation: 10–400 m

Distribution

V20-1158-distribution-map.gif

Ont., Que., Ark., Ill., Ind., Iowa, Kans., Ky., Mich., Mo., Nebr., N.Y., Ohio, Okla., Pa., Vt.

Discussion

Selected References

None.

Lower Taxa

None.
Luc Brouillet +, John C. Semple +, Geraldine A. Allen +, Kenton L. Chambers +  and Scott D. Sundberg† +
(Wiegand) G. L. Nesom +
Aster interior +
Ont. +, Que. +, Ark. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, Mich. +, Mo. +, Nebr. +, N.Y. +, Ohio +, Okla. +, Pa. +  and Vt. +
10–400 m +
Bottomlands, along streams +
Flowering Jul–Oct. +
Aster lanceolatus subsp. interior +  and Aster simplex var. interior +
Symphyotrichum lanceolatum var. interior +
Symphyotrichum lanceolatum +
variety +