Liatris squarrosa

(Linnaeus) Michaux

Fl. Bor.-Amer. 2: 92. 1803.

Common names: Loosescale gayfeather colicroot
IllustratedEndemic
Basionym: Serratula squarrosa Linnaeus Sp. Pl. 2: 818. 1753
Synonyms: Lacinaria squarrosa (Linnaeus) Hill
Treatment appears in FNA Volume 21. Treatment on page 517. Mentioned on page 513, 518, 535.
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Plants 30–80 cm. Corms globose to slightly elongate. Stems glabrous or puberulent-villous. Leaves: basal and proximal cauline 3–5-nerved, broadly linear to linear-oblanceolate, 70–220 × 2–12 mm (largest usually distal to proximalmost), gradually reduced distally, puberulent-villous or glabrous, weakly glanddotted. Heads borne singly or (3–26) in loose, racemiform to spiciform arrays. Peduncles 0 or (spreading to ascending) 1–8 (–20+) mm. Involucres cylindro-campanulate, 12–20 (–25) × 7–10 mm. Phyllaries (usually erect, sometimes spreading-reflexing on the distal 1/3) in 5–7 series, narrowly ovate-triangular and foliaceous (outer) to ovate or oblong-triangular, ± equal, glabrous or pubescent, margins without hyaline borders, stiffly to softly ciliate, apices acuminate to acute. Florets (10–) 23–45 (–60); corolla-tubes glabrous inside (lobes adaxially hispid). Cypselae 4–5.5 mm; pappi: lengths ± equaling corollas, bristles plumose.

Distribution

V21-1305-distribution-map.gif

Ala., Colo., Del., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Md., Mich., Mo., N.C., Nebr., Ohio, Okla., S.C., Tenn., Tex., Va., W.Va.

Discussion

Varieties 2 (2 in the flora).

See discussion under 1. Liatris compacta.

Selected References

None.

Key

1 Stems glabrous; leaves glabrous; phyllariesglabrous Liatris squarrosa var. glabrata
1 Stems usually puberulent-strigose (hairs soft, upturned or appressed); leaves sparsely pilose to glabrescent; phyllaries usually ciliate, faces glabrousor pubescent Liatris squarrosa var. squarrosa

"plumose" is not a number."fine" is not a number.

... more about "Liatris squarrosa"
not tailed +, truncate +, rounded +  and obtuse +
acuminate;acute +
scarious +
usually ovate +  and lanceolate +
usually terete +  and clavate +
racemiform +  and spiciform +
indeterminate +  and determinate +
Guy L. Nesom +
(Linnaeus) Michaux +
decurrent +
not enlarged +
Serratula squarrosa +
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 +
Loosescale gayfeather +  and colicroot +
white +, usually lavender +  and dark magenta or pinkish purple +
usually hirsutulous +  and hirtellous-pilose +
prismatic +
fertile +  and bisexual +
Ala. +, Colo. +, Del. +, Fla. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Md. +, Mich. +, Mo. +, N.C. +, Nebr. +, Ohio +, Okla. +, S.C. +, Tenn. +, Tex. +, Va. +  and W.Va. +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
indeterminate +
each +  and sessile +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (2 cm20 mm <br />0.02 m <br />) +
cylindro-campanulate +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
7 cm70 mm <br />0.07 m <br /> (22 cm220 mm <br />0.22 m <br />) +
cauline +, proximal +  and basal +
glabrous +  and puberulent-villous +
broadly linear;linear-oblanceolate +
reduced +
0.2 cm2 mm <br />0.002 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
lanceolate +  and lance-linear +
pubescent +  and glabrous +
oblong-triangular +  and ovate +
2-carpellate +
persistent +
1-8(-20+) mm +
18 +  and 40 +
Fl. Bor.-Amer. +
bearing subulate enations +, hairy +  and bristly +
conic;spheric;usually flat;convex +
exalbuminous +
Illustrated +  and Endemic +
branched +  and simple +
puberulent-villous +  and glabrous +
appendaged +  and truncate +
hirsutulous +
papillate +
Lacinaria squarrosa +
Liatris squarrosa +
species +
20 cm200 mm <br />0.2 m <br /> (180 cm1,800 mm <br />1.8 m <br />) +