Liatris pilosa |
Liatris elegans |
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grass-leaf gayfeather, shaggy blazing star |
elegant gayfeather, pinkscale blazing star, pinkscale gayfeather |
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Habit | Plants 40–120 cm. | Plants 30–120 cm. | ||||||||||||
Stems | glabrous or sparsely to moderately pilose distally or throughout. |
puberulent to hirsute-puberulent. |
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Leaves | basal and proximal cauline 1-nerved, narrowly oblanceolate, 60–170(–200) × 2–7(–11) mm, abruptly to gradually reduced distally (becoming linear, spreading-ascending), essentially glabrous or sparsely pilose (abaxially), gland-dotted (proximal margins piloso-ciliate). |
(basal on relatively distant internodes usually withering before flowering) proximal cauline 1-nerved, narrowly oblanceolate, 60–200(–300) × 3–8 mm, gradually or abruptly reduced distally (becoming slightly to strongly deflexed), essentially glabrous or sparsely puberulent, gland-dotted. |
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Peduncles | 0 or (ascending) 1–10(–80) mm. |
usually 0, sometimes 1–5(–10) mm. |
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Involucres | turbinate to campanulate-cylindric, (7–)8–10 × 5–6 mm. |
turbinate-cylindric, 12–20 × 4–6 mm. |
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Florets | (6–)7–12(–13, mostly 9–12 in Del. |
4–5; corolla tubes glabrous inside. |
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Phyllaries | in (3–)4–5(–6) series, oblong, unequal, essentially glabrous, margins with hyaline borders (0.2–0.4 mm wide), erose to lacerate, ciliolate, apices usually rounded, rarely acute. |
in 3–4 series, narrowly lanceolate-triangular, unequal, strigose to strigoso-hispid, margins with hyaline borders, apices (at least inner) prolonged, spreading, ± dilated, petaloid (pink, purplish, white, or yellow). |
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Heads | in loose to dense, racemiform to spiciform arrays (internodes 1–7 mm). |
in dense, spiciform arrays. |
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Cypselae | (2.5–)3–4 mm; pappi: lengths ± equaling corollas, bristles barbellate. |
3.5–5(–6) mm; pappi: lengths ± equaling corollas, bristles plumose. |
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Corms | globose. |
depressed-globose or globose to napiform. |
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And | N.J.); corolla tubes pilose inside. |
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2n | = 20. |
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Liatris pilosa |
Liatris elegans |
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Phenology | Flowering (Aug–)Sep–Oct(–Nov). | |||||||||||||
Habitat | Old fields, pine barrens, scrub oak-pine sandhills, openings in pine, oak, and oak-hickory woods, tidal marsh edges, sandy fields, dune hollows, wet sand near beaches, edges of tidal marshes, sand to sandy clay-loam | |||||||||||||
Elevation | (0–)10–500 m ((0–)0–1600 ft) | |||||||||||||
Distribution |
DE; MD; NC; NJ; PA; SC; VA
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AL; AR; FL; GA; LA; MS; OK; SC; TX
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Discussion | Varieties 4 (4 in the flora). Variety elegans extends across the geographic range of the species; the other three varieties form local enclaves essentially imbedded within var. elegans and sporadically intergrading with it at points of contact (see further comments under 10d. var. kralii). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 21, p. 529. | FNA vol. 21, p. 521. | ||||||||||||
Parent taxa | Asteraceae > tribe Eupatorieae > Liatris | Asteraceae > tribe Eupatorieae > Liatris | ||||||||||||
Sibling taxa | ||||||||||||||
Subordinate taxa | ||||||||||||||
Synonyms | Serratula pilosa, Lacinaria graminifolia var. pilosa, L. graminifolia, L. graminifolia var. dubia, L. graminifolia var. lasia, L. pilosa var. laevicaulis | Staehelina elegans | ||||||||||||
Name authority | (Aiton) Willdenow: Sp. Pl. 3: 1636. (1803) | (Walter) Michaux: Fl. Bor.-Amer. 2: 91. (1803) | ||||||||||||
Web links |