Liatris gracilis

Pursh

Fl. Amer. Sept. 2: 508. 1813.

Common names: Slender gayfeather
IllustratedEndemic
Synonyms: Lacinaria gracilis (Pursh) Kuntze Lacinaria laxa Small
Treatment appears in FNA Volume 21. Treatment on page 531. Mentioned on page 515, 516.
Revision as of 21:56, 27 May 2020 by imported>Volume Importer

Plants 20–100 cm. Corms globose to subglobose. Stems puberulent to piloso- or strigoso-puberulent. Leaves: 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). Heads in loose, racemiform arrays. Peduncles 0 or (usually straight, stiffly spreading to ascending) 2–10(–12) mm. Involucres cylindro-campanulate, (4–)4.5–6(–7) × 3–4(–5) mm. Phyllaries 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. Florets 3–6(–9); corolla tubes pilose inside. Cypselae 3–3.5 mm; pappi: lengths ± equaling corollas, bristles barbellate. 2n = 20.


Phenology: Flowering (Jul–)Aug–Oct(–Nov).
Habitat: 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: 10–50 m

Distribution

V21-1350-distribution-map.gif

Ala., Fla., Ga., Miss., S.C.

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.

Selected References

None.

Lower Taxa

None.
... more about "Liatris gracilis"
Guy L. Nesom +
Slender gayfeather +
Ala. +, Fla. +, Ga. +, Miss. +  and S.C. +
10–50 m +
Longleaf pine, slash pine, palmetto-scrub oak, turkey oak-bluejack oak, sand scrub, sand ridges, uplands, boggy flatwoods, sandy peat, fencerows, roadsides, woodland edges +
Flowering (Jul–)Aug–Oct(–Nov). +
Fl. Amer. Sept. +
Illustrated +  and Endemic +
Lacinaria gracilis +  and Lacinaria laxa +
Liatris gracilis +
species +