Liatris pilosa |
Liatris gracilis |
|
---|---|---|
grass-leaf gayfeather, shaggy blazing star |
slender blazing star, slender gayfeather |
|
Habit | Plants 40–120 cm. | Plants 20–100 cm. |
Stems | glabrous or sparsely to moderately pilose distally or throughout. |
puberulent to piloso- or strigoso-puberulent. |
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 and proximal cauline 1-nerved, usually linear to linear-oblanceolate or oblanceolate, sometimes narrowly spatulate, 50–150 × 2–8(–10) mm, gradually or abruptly reduced on distal 1/2–1/3 of stems, essentially glabrous (proximal margins ciliate). |
Peduncles | 0 or (ascending) 1–10(–80) mm. |
0 or (usually straight, stiffly spreading to ascending) 2–10(–12) mm. |
Involucres | turbinate to campanulate-cylindric, (7–)8–10 × 5–6 mm. |
cylindro-campanulate, (4–)4.5–6(–7) × 3–4(–5) mm. |
Florets | (6–)7–12(–13, mostly 9–12 in Del. |
3–6(–9); corolla tubes pilose inside. |
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, (green to purple) ovate to oblong, strongly to weakly unequal, sparsely puberulent, margins with hyaline borders, ciliolate, apices rounded to truncate. |
Heads | in loose to dense, racemiform to spiciform arrays (internodes 1–7 mm). |
in loose, racemiform arrays. |
Cypselae | (2.5–)3–4 mm; pappi: lengths ± equaling corollas, bristles barbellate. |
3–3.5 mm; pappi: lengths ± equaling corollas, bristles barbellate. |
Corms | globose. |
globose to subglobose. |
And | N.J.); corolla tubes pilose inside. |
|
2n | = 20. |
= 20. |
Liatris pilosa |
Liatris gracilis |
|
Phenology | Flowering (Aug–)Sep–Oct(–Nov). | Flowering (Jul–)Aug–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 | Longleaf pine, slash pine, palmetto-scrub oak, turkey oak-bluejack oak, sand scrub, sand ridges, uplands, boggy flatwoods, sandy peat, fencerows, roadsides, woodland edges |
Elevation | (0–)10–500 m ((0–)0–1600 ft) | 10–50 m (0–200 ft) |
Distribution |
DE; MD; NC; NJ; PA; SC; VA
|
AL; FL; GA; MS; SC
|
Discussion | Plants of Liatris gracilis from the panhandle of Florida and the southern tier of Alabama counties tend to have sharply acute phyllaries; intermediates are often encountered. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 21, p. 529. | FNA vol. 21, p. 531. |
Parent taxa | Asteraceae > tribe Eupatorieae > Liatris | Asteraceae > tribe Eupatorieae > Liatris |
Sibling taxa | ||
Synonyms | Serratula pilosa, Lacinaria graminifolia var. pilosa, L. graminifolia, L. graminifolia var. dubia, L. graminifolia var. lasia, L. pilosa var. laevicaulis | Lacinaria gracilis, Lacinaria laxa |
Name authority | (Aiton) Willdenow: Sp. Pl. 3: 1636. (1803) | Pursh: Fl. Amer. Sept. 2: 508. (1813) |
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