Liatris tenuis |
Liatris hirsuta |
|
---|---|---|
gulf blazing star, Shinners' gayfeather |
hairy gayfeather, scaly blazing star |
|
Habit | Plants 30–55 cm. | Plants 20–70 cm. |
Stems | strigoso-puberulent. |
hirsute to piloso-hirsute. |
Leaves | basal and proximal cauline 1(–3)-nerved, linear-lanceolate to linear-oblanceolate, 120–250 × 2–3(–5) mm, abruptly reduced on distal 1/2–2/3 of stems, sparsely pilose (abaxial faces), gland-dotted. |
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. |
Peduncles | 0 or 1–5 mm. |
0 or (peduncles spreading to ascending) 1–10 mm. |
Involucres | cylindro-campanulate, 10–13 × 5–6(–7) mm. |
cylindro-campanulate, 11–17 × 6–9 mm. |
Florets | 10–12; corolla tubes glabrous inside. |
15–30; corolla tubes glabrous inside (lobes adaxially hispid). |
Phyllaries | in 3–4(–5) series, outermost narrowly triangular, unequal, sparsely fine-pilose to glabrate, margins without hyaline borders, ciliate, apices (loosely divergent) acute to acuminate (innermost sometimes obtuse and short-acuminate). |
(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. |
Heads | in loose, spiciform arrays (internodes 1–15 mm). |
in loose, racemiform to spiciform arrays. |
Cypselae | 4.2–4.5 mm; pappi: lengths equaling corollas, bristles barbellate or proximally plumose. |
5.5–6.5 mm; pappi: lengths ± equaling corollas, bristles plumose. |
Corms | globose to subglobose. |
globose to slightly elongate. |
Liatris tenuis |
Liatris hirsuta |
|
Phenology | Flowering (Jun–)Jul–Sep. | Flowering (Jun–)Jul–Aug(–Sep). |
Habitat | Longleaf pine savannas, pine-hardwood edges, slopes, flats, uplands, near drainages, sands, sandy clays, fencerows, roadsides | Prairies, rocky slopes, flats, marl ridges, pine-oak woods, streamsides, roadsides |
Elevation | 50–100 m (200–300 ft) | 50–500(–900) m (200–1600(–3000) ft) |
Distribution |
LA; TX |
AR; IA; KS; LA; MO; MS; NE; OK; TX
|
Discussion | Liatris tenuis is in the Center for Plant Conservation’s National Collection of Endangered Plants. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
Source | FNA vol. 21, p. 523. | FNA vol. 21, p. 518. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | L. squarrosa var. hirsuta | |
Name authority | Shinners: SouthW. Naturalist 4: 208. (1959) | Rydberg: Brittonia 1: 98. (1931) |
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