Difference between revisions of "Boltonia asteroides var. latisquama"
Bull. Torrey Bot. Club 74: 149. 1947.
Endemic
Basionym: Boltonia latisquama A. Gray Amer. J. Sci. Arts, ser. 2, 33: 238. 1862
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|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Boltonia | |genus=Boltonia | ||
Latest revision as of 21:05, 5 November 2020
Heads 30–50(–100); bracts linear-oblanceolate to narrowly oblanceolate or linear-subulate, 25–70 × 2–7 mm. Involucres 4–5 × 6–14 mm. Phyllaries sometimes reflexed, spatulate to obovate-spatulate, subequal, membranous margins broad, (2–)2.5–6 mm wide, apices cuspidate; outer 2.6–3.8 × 0.5–1.6 mm; inner 3.2–4 × 0.9–1.5 mm. Cypselae obovoid to obcordiform, winged; pappus awns 0.7–2 mm, lengths 2/3+ cypselae. 2n = 18.
Phenology: Flowering Aug–Sep.
Habitat: Marshes, streams, sloughs, wet ditches
Elevation: 10–400 m
Distribution
Ark., Conn., Iowa, Kans., Maine, Md., Mass., Minn., Miss., Mo., Nebr., N.Dak., Ohio, Okla., R.I., S.Dak., Vt., Va., Wis.
Discussion
Variety latisquama is considered endangered in Maryland.
Selected References
None.
Lower Taxa
None.