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bract blazing star, South Texas gayfeather

Greene's elegant gayfeather, shaggy blazing star

Habit Plants 25–75 cm. Plants 60–105 cm.
Stems

glabrous.

glabrous.

Leaves

basal and proximal cauline 1-nerved, linear, 40–100 × 1–2 mm, even-sized or gradually reduced distally, essentially glabrous, gland-dotted (proximal margins sparsely ciliate).

basal and proximal cauline 1-nerved, linear-oblanceolate to narrowly oblanceolate, 80–210 × 2–5(–10) mm, gradually or abruptly reduced distally, essentially glabrous (sparsely piloso-ciliate along proximal margins), gland-dotted.

Peduncles

0.

0 or (ascending) 2(–7) mm.

Involucres

turbinate-cylindric, (11–)12–15 × 5–7 mm.

turbinate, 6–8 × 5–7 mm.

Florets

8–14(–16);

corolla tubes glabrous inside.

(7–)8–11(–13);

corolla tubes pilose inside.

Phyllaries

in 5–6(–7) series, broadly oblong to lanceolate-oblong, strongly unequal, glabrous, margins without hyaline borders, finely ciliolate, apices obtuse, rounded, or truncate, sharply involute-apiculate.

in 3–4(–5) series, mostly oblong, unequal, essentially glabrous, margins with hyaline borders (0.2–0.4 mm wide), sometimes sparsely ciliolate, apices rounded.

Heads

(widely spaced, stems evident) in loose, spiciform arrays.

in loose, racemiform arrays (internodes 2–14 mm).

Cypselae

6–9 mm;

pappi: lengths ± equaling corollas, bristles plumose.

2.8–3.5(–3.8) mm;

pappi: lengths ± equaling corollas, bristles barbellate.

Corms

globose.

mostly globose.

2n

= 60.

= 20.

Liatris bracteata

Liatris elegantula

Phenology Flowering Sep–Nov. Flowering Aug–Oct(–Nov).
Habitat Coastal prairies, roadsides, railroads, clays, sandy loams Longleaf pine-scrub oak, pine, live oak-pine, deciduous oak-pine, deciduous flatwoods, sandhills, savanna edges, edges of cypress depressions, depression meadows, live oak-pine-palmetto hammocks, sandy clay or loam, rarely clay
Elevation 0–10(–50) m (0–0(–200) ft) 0–300(–500) m (0–1000(–1600) ft)
Distribution
from FNA
TX
[BONAP county map]
from FNA
AL; FL; GA; MS
[WildflowerSearch map]
[BONAP county map]
Discussion

Of conservation concern.

Liatris bracteata might justifiably be treated at varietal rank within L. punctata; the morphologic difference appears to be primarily in head size (especially floret number). Chromosome counts (L. O. Gaiser 1950c) indicate that L. bracteata is hexaploid, compared to diploids and tetraploids in populations of L. punctata.

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

Source FNA vol. 21, p. 520. FNA vol. 21, p. 530.
Parent taxa Asteraceae > tribe Eupatorieae > Liatris Asteraceae > tribe Eupatorieae > Liatris
Sibling taxa
L. acidota, L. aestivalis, L. aspera, 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. 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. 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. pycnostachya, L. savannensis, L. scariosa, L. spicata, L. squarrosa, L. squarrulosa, L. tenuifolia, L. tenuis, L. virgata
Synonyms Lacinaria elegantula, L. graminifolia var. elegantula
Name authority Gaiser: Rhodora 48: 371. (1946) (Greene) K. Schumann: Just’s Bot. Jahresber. 29(1): 569. (1903)
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