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Boltonia asteroides var. latisquama
(A. Gray) Cronquist
Family:
Asteraceae
Images
not available
Flora of North America
Resources
Vesna Karaman-Castro, Lowell E. Urbatsch in Flora of North America (vol. 20)
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.
2
n
= 18. Flowering Aug-Sep. Marshes, streams, sloughs, wet ditches; 10-400 m; Ark., Conn., Iowa, Kans., Maine, Md., Mass., Minn., Miss., Mo., Nebr., N.Dak., Ohio, Okla., R.I., S.Dak., Vt., Va., Wis. Variety
latisquama
is considered endangered in Maryland.
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