Liatris hirsuta |
Liatris punctata |
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hairy gayfeather, scaly blazing star |
dotted blazing star, dotted gayfeather, narrow-leaf blazingstar, plains gayfeather |
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Habit | Plants 20–70 cm. | Plants 15–85 cm. | ||||||||
Stems | hirsute to piloso-hirsute. |
glabrous. |
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Leaves | basal and proximal cauline 3–5-nerved, linear-lanceolate, 60–180 × 2–7 mm (largest usually distal to proximalmost), gradually reduced distally, hirsute to piloso-hirsute. |
basal and proximal cauline 1-nerved, linear, 50–140 × 1–7 mm, gradually or little reduced distally, essentially glabrous or sparsely piloso-hirsutulous, gland-dotted (margins sometimes ciliate). |
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Peduncles | 0 or (peduncles spreading to ascending) 1–10 mm. |
0 or very rarely 1–2 mm. |
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Involucres | cylindro-campanulate, 11–17 × 6–9 mm. |
campanulate-cylindric, 7–15 × (4–)5–7 mm. |
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Florets | 15–30; corolla tubes glabrous inside (lobes adaxially hispid). |
3–8; corolla tubes glabrous inside. |
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Phyllaries | (spreading to reflexed) in 5–7 series, ovate-triangular (outer) to oblong-triangular, unequal, usually sparsely hirsute, margins without hyaline borders, coarsely hirsute-ciliate, apices acute-acuminate. |
in 3–6 series, mostly oblong-obovate, unequal, essentially glabrous, margins without hyaline borders, sometimes ciliate, apices acute, acute-acuminate, obtuse, rounded, or rounded-truncate (often with indurate apicula or mucros, lateral veins usually not evident beyond middle or at least on distal 1/3). |
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Heads | in loose, racemiform to spiciform arrays. |
in dense to loose, spiciform arrays. |
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Cypselae | 5.5–6.5 mm; pappi: lengths ± equaling corollas, bristles plumose. |
(5.5–)6–8.5 mm; pappi: lengths ± equaling corollas, bristles plumose. |
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Corms | globose to slightly elongate. |
globose to depressed-globose or elongate, sometimes becoming simple or branched rhizomes. |
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Liatris hirsuta |
Liatris punctata |
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Phenology | Flowering (Jun–)Jul–Aug(–Sep). | |||||||||
Habitat | Prairies, rocky slopes, flats, marl ridges, pine-oak woods, streamsides, roadsides | |||||||||
Elevation | 50–500(–900) m (200–1600(–3000) ft) | |||||||||
Distribution |
AR; IA; KS; LA; MO; MS; NE; OK; TX
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AR; CO; IA; IL; KS; LA; MI; MN; MO; MT; ND; NE; NM; OH; OK; SD; TX; WI; WY; AB; MB; SK; n Mexico
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Discussion | Liatris hirsuta occupies a geographic range separate from and nearly contiguous with L. squarrosa. They have been treated as a single species. Liatris hirsuta is sympatric (without intergrades) with L. squarrosa var. squarrosa in Texas, Oklahoma, Louisiana, and Mississippi; it is sympatric with L. compacta in Arkansas; it intergrades with L. cylindracea in Missouri. See also discussion under 1. L. compacta. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Varieties 3 (3 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 21, p. 518. | FNA vol. 21, p. 519. | ||||||||
Parent taxa | ||||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | L. squarrosa var. hirsuta | Lacinaria punctata | ||||||||
Name authority | Rydberg: Brittonia 1: 98. (1931) | Hooker: Fl. Bor.-Amer. 1: 306, plate 105. (1833) | ||||||||
Web links |