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 21:55, 29 July 2020 by imported>Volume Importer
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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.

"barbellate" is not a number."fine" is not a number.

... more about "Liatris gracilis"
not tailed +, truncate +, rounded +  and obtuse +
rounded;truncate +
scarious +
usually ovate +  and lanceolate +
usually terete +  and clavate +
indeterminate +  and determinate +
Guy L. Nesom +
decurrent +
not enlarged +
5-nerved +, 3-nerved +  and 1-nerved +
dissected +, lobed +, toothed +  and entire +
mostly linear;ovatelanceolate +
papillate +  and rugose +
(4-)5-angled;10-ribbed +
linear-clavate +
Slender gayfeather +
white +, usually lavender +  and dark magenta or pinkish purple +
usually hirsutulous +  and hirtellous-pilose +
prismatic +
fertile +  and bisexual +
Ala. +, Fla. +, Ga. +, Miss. +  and S.C. +
10–50 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Longleaf pine, slash pine, palmetto-scrub oak, turkey oak-bluejack oak, sand scrub, sand ridges, uplands, boggy flatwoods, sandy peat, fencerows, roadsides, woodland edges +
in usually determinate , rarely indeterminate , arrays +  and singly +
indeterminate +
each +  and sessile +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
cylindro-campanulate +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
5 cm50 mm <br />0.05 m <br /> (15 cm150 mm <br />0.15 m <br />) +
cauline +, proximal +  and basal +
spatulate;usually linear;linear-oblanceolate or oblanceolate +
reduced +
0.2 cm2 mm <br />0.002 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
lanceolate +  and lance-linear +
2-carpellate +
persistent +
2-10(-12) mm +
Flowering (Jul–)Aug–Oct(–Nov). +
18 +  and 40 +
Fl. Amer. Sept. +
bearing subulate enations +, hairy +  and bristly +
conic;spheric;usually flat;convex +
exalbuminous +
Illustrated +  and Endemic +
branched +  and simple +
puberulent +
appendaged +  and truncate +
hirsutulous +
papillate +
Lacinaria gracilis +  and Lacinaria laxa +
Liatris gracilis +
species +
20 cm200 mm <br />0.2 m <br /> (180 cm1,800 mm <br />1.8 m <br />) +