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.

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 />) +