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hairy gayfeather, scaly blazing star

slender blazing star, slender gayfeather

Habit Plants 20–70 cm. Plants 20–100 cm.
Stems

hirsute to piloso-hirsute.

puberulent to piloso- or strigoso-puberulent.

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, 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 (peduncles spreading to ascending) 1–10 mm.

0 or (usually straight, stiffly spreading to ascending) 2–10(–12) mm.

Involucres

cylindro-campanulate, 11–17 × 6–9 mm.

cylindro-campanulate, (4–)4.5–6(–7) × 3–4(–5) mm.

Florets

15–30;

corolla tubes glabrous inside (lobes adaxially hispid).

3–6(–9);

corolla tubes pilose inside.

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(–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, racemiform to spiciform arrays.

in loose, racemiform arrays.

Cypselae

5.5–6.5 mm;

pappi: lengths ± equaling corollas, bristles plumose.

3–3.5 mm;

pappi: lengths ± equaling corollas, bristles barbellate.

Corms

globose to slightly elongate.

globose to subglobose.

2n

= 20.

Liatris hirsuta

Liatris gracilis

Phenology Flowering (Jun–)Jul–Aug(–Sep). Flowering (Jul–)Aug–Oct(–Nov).
Habitat Prairies, rocky slopes, flats, marl ridges, pine-oak woods, streamsides, roadsides 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 50–500(–900) m (200–1600(–3000) ft) 10–50 m (0–200 ft)
Distribution
from FNA
AR; IA; KS; LA; MO; MS; NE; OK; TX
[WildflowerSearch map]
[BONAP county map]
from FNA
AL; FL; GA; MS; SC
[WildflowerSearch map]
[BONAP county map]
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.)

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. 518. FNA vol. 21, p. 531.
Parent taxa Asteraceae > tribe Eupatorieae > Liatris Asteraceae > tribe Eupatorieae > Liatris
Sibling taxa
L. acidota, L. aestivalis, L. aspera, L. bracteata, L. chapmanii, L. cokeri, L. compacta, L. cylindracea, L. cymosa, L. elegans, L. elegantula, L. garberi, L. gholsonii, L. glandulosa, L. gracilis, L. helleri, L. laevigata, L. lancifolia, L. ligulistylis, L. microcephala, L. ohlingerae, L. oligocephala, L. patens, L. pauciflora, L. pilosa, L. provincialis, L. punctata, L. pycnostachya, L. savannensis, L. scariosa, L. spicata, L. squarrosa, L. squarrulosa, L. tenuifolia, L. tenuis, L. virgata
L. acidota, L. aestivalis, L. aspera, L. bracteata, L. chapmanii, L. cokeri, L. compacta, L. cylindracea, L. cymosa, L. elegans, L. elegantula, L. garberi, L. gholsonii, L. glandulosa, L. helleri, L. hirsuta, L. laevigata, L. lancifolia, L. ligulistylis, L. microcephala, L. ohlingerae, L. oligocephala, L. patens, L. pauciflora, L. pilosa, L. provincialis, L. punctata, L. pycnostachya, L. savannensis, L. scariosa, L. spicata, L. squarrosa, L. squarrulosa, L. tenuifolia, L. tenuis, L. virgata
Synonyms L. squarrosa var. hirsuta Lacinaria gracilis, Lacinaria laxa
Name authority Rydberg: Brittonia 1: 98. (1931) Pursh: Fl. Amer. Sept. 2: 508. (1813)
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