Symphyotrichum subulatum var. ligulatum

S. D. Sundberg

Sida 21: 907. 2004.

Common names: Saltmarsh or southern annual saltmarsh aster
Basionym: Aster subulatus var. ligulatus Shinners Field & Lab. 21: 159. 1953
Synonyms: Symphyotrichum divaricatum (Nuttall) G. L. Nesom
Treatment appears in FNA Volume 20. Treatment on page 481.

Plants (10–)60–200 cm. Stems usually simple, sometimes branched proximally. Heads 15–120, in open, diffuse arrays, secund on primary branches longer than peduncles. Involucres (5.2–)6–6.9 mm. Phyllaries 25–45(–62), subulate to lanceolate, narrow, green zones narrowly lanceolate. Ray florets 17–30(–45) in 1 series; laminae lavender to blue, (3.5–)4.5–7 × 0.9–1.3 mm, longer than pappi, drying in 3–5 coils (apices shallowly lobed). Disc florets (20–)33–50; corollas 3.7–4.5(–5) mm. Cypselae (1.3–)1.7–2.5(–2.9) mm; pappi (3–)3.5–4.6 mm. 2n = 10.


Phenology: Flowering Jul–Nov(–Feb).
Habitat: Marshy habitats, often weedy, roadsides, lawns, waste places
Elevation: 0–1500 m

Distribution

V20-1082-distribution-map.gif

Ala., Ark., Kans., La., Miss., Nebr., N.Mex., Okla., Tenn., Tex., Mexico (Chihuahua, Coahuila, Tamaulipas).

Discussion

Selected References

None.

Lower Taxa

None.
Luc Brouillet +, John C. Semple +, Geraldine A. Allen +, Kenton L. Chambers +  and Scott D. Sundberg† +
S. D. Sundberg +
Aster subulatus var. ligulatus +
Saltmarsh or southern annual saltmarsh aster +
Ala. +, Ark. +, Kans. +, La. +, Miss. +, Nebr. +, N.Mex. +, Okla. +, Tenn. +, Tex. +, Mexico (Chihuahua +, Coahuila +  and Tamaulipas). +
0–1500 m +
Marshy habitats, often weedy, roadsides, lawns, waste places +
Flowering Jul–Nov(–Feb). +
Symphyotrichum divaricatum +
Symphyotrichum subulatum var. ligulatum +
Symphyotrichum subulatum +
variety +