Liatris cylindracea |
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barrelhead gayfeather, cylindrical blazingstar, Ontario blazing star |
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Habit | Plants 20–60 cm. |
Stems | glabrous. |
Leaves | basal and proximal cauline 3(–5)-nerved, linear-oblanceolate to linear-lanceolate, 80–250 × 2–6 mm (largest usually distal to proximalmost), gradually reduced distally, essentially glabrous (proximal margins pilose-ciliate). |
Peduncles | 0 or (spreading-ascending) 2–10(–20) mm. |
Involucres | cylindro-campanulate, (11–)13–18 × 6–8 mm. |
Florets | 10–35; corolla tubes glabrous inside (lobes adaxially hispid). |
Phyllaries | in 5–7 series, ovate-triangular (outer) to broadly oblong or spatulate-oblong, strongly unequal, essentially glabrous, margins usually with narrow hyaline borders, ciliolate, apices broadly rounded, rounded-acuminate, or truncate (inner stiffly mucronate). |
Heads | borne singly or (2–28) in loose to dense, racemiform to spiciform arrays. |
Cypselae | 5–7 mm; pappi: lengths ± equaling corollas, bristles plumose. |
Corms | usually globose, rarely elongate. |
Liatris cylindracea |
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Phenology | Flowering Jul–Sep. |
Habitat | Prairies, limestone outcrops, bluffs, barrens, and glades, marl, sandstone outcrops, dunes, roadsides, sandy pine-oak, wooded northern slopes |
Elevation | 100–400 m (300–1300 ft) |
Distribution |
AL; AR; GA; IA; IL; IN; KS; KY; MI; MN; MO; NY; OH; OK; TN; WI; ON
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Discussion | Stems and leaves of Liatris cylindracea sometimes are hairy (Kentucky, Missouri), perhaps reflecting genetic influence from L. hirsuta. See also discussion under 1. L. compacta. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 21, p. 518. |
Parent taxa | |
Sibling taxa | |
Synonyms | Lacinaria cylindracea, L. intermedia, L. squarrosa var. intermedia |
Name authority | Michaux: Fl. Bor.-Amer. 2: 93. (1803) |
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