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cat-tail gayfeather, prairie blazing star, prairie gayfeather, thick-spike blazing star

bluffs gayfeather, Gholson's blazing star, Gholson's gayfeather

Habit Plants (40–)60–120(–180) cm. Plants 45–120(–180) cm.
Stems

glabrous or densely piloso-puberulent.

finely puberulent.

Leaves

basal and proximal cauline 3–5-nerved, linear to narrowly oblanceolate or oblanceolate, 110–220 × 4–10(–12) mm, gradually then abruptly reduced distally (bractlike proximal to heads), essentially glabrous or sparsely pilose to densely piloso-puberulent, weakly gland-dotted (bases of basal usually fibrous-persistent).

basal and proximal cauline 1-nerved, spatulate (petioles slender, blades elliptic to lanceolate-elliptic), (100–)150–250 × (8–)11–22(–27) mm, gradually reduced distally, essentially glabrous, gland-dotted.

Peduncles

usually 0, rarely (spreading to ascending) 1–2 mm.

(spreading-ascending) (2–)5–12(–26) mm (with bracts 2+ mm wide, grading from distal leaves).

Involucres

campanulate-cylindric, 7–9(–10) × 3.5–5 mm.

cylindro-turbinate, 4–5 × 2.5–3 mm.

Florets

(4–)5–8;

corolla tubes glabrous inside.

3–5(–6);

corolla tubes pilose inside.

Phyllaries

(reflexed or curving-spreading) in 4–5 series, oblong-lanceolate, unequal, essentially glabrous or ± pilose, margins with hyaline borders, sometimes ciliate, apices usually acute to acute-acuminate (sometimes distally dilated, nearly petaloid).

in 3(–4) series, ovate to oblong, strongly to weakly unequal, essentially glabrous, margins with hyaline borders, ciliolate, apices (at least outer) acuminate to acute.

Heads

in dense, spiciform arrays.

in loose, racemiform arrays.

Cypselae

3.8–4.5(–5) mm;

pappi: lengths ± equaling corollas, bristles barbellate.

3.5–5 mm;

pappi: lengths ± equaling corollas, bristles barbellate.

Corms

globose, sometimes becoming elongate rhizomes.

globose.

2n

= 20.

Liatris pycnostachya

Liatris gholsonii

Phenology Flowering (Jul–)Aug–Oct(–Nov).
Habitat Slopes of shaded sites in deciduous woods, ecotones of mesic woods and scrub oak, sandy ridges between ravines, open sites on bluffs, loamy or gravelly sands
Elevation 20–50 m (100–200 ft)
Distribution
from FNA
AR; IA; IL; IN; KS; KY; LA; MA; MI; MN; MO; MS; ND; NE; NJ; NY; OH; OK; PA; SD; TX; WI
[WildflowerSearch map]
[BONAP county map]
from FNA
FL
Discussion

Varieties 2 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Of conservation concern.

Liatris gholsonii is closely similar to L. gracilis; it apparently is restricted to an area along the Apalachicola River in Liberty and Leon counties.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Key
1. Corms globose; stems usually glabrous or sparsely pilose except near heads (where sparsely piloso-puberulent); leaves glabrous
var. pycnostachya
1. Corms globose to elongate; stems moderately to densely piloso-puberulent; leaves moderately to densely piloso-puberulent to nearly glabrous
var. lasiophylla
Source FNA vol. 21. 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. hirsuta, L. laevigata, L. lancifolia, L. ligulistylis, L. microcephala, L. ohlingerae, L. oligocephala, L. patens, L. pauciflora, L. pilosa, L. provincialis, L. punctata, 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. glandulosa, L. gracilis, 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
Subordinate taxa
L. pycnostachya var. lasiophylla, L. pycnostachya var. pycnostachya
Synonyms Lacinaria pycnostachya
Name authority Michaux: Fl. Bor.-Amer. 2: 91. (1803) L. C. Anderson: Sida 20: 98, fig. 1. (2002)
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