Difference between revisions of "Liatris squarrosa"

(Linnaeus) Michaux

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

Common names: Loosescale gayfeather colicroot
Basionym: Serratula squarrosa Linnaeus
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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|discussion=<p>Varieties 2 (2 in the flora).</p><!--
--><p>See discussion under 1. Liatris compacta.</p>
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--><p>See discussion under 1. <i>Liatris compacta</i>.</p>
 
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V19-20-21/V21_1305.xml
 
|tribe=Asteraceae tribe Eupatorieae
 
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|genus=Liatris
 
|genus=Liatris

Revision as of 16:31, 18 September 2019

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 gland-dotted. 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.

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