View source for Lygodesmia

{{Treatment/ID
|accepted_name=Lygodesmia
|accepted_authority=D. Don
|publications={{Treatment/Publication
|title=Edinburgh New Philos. J.
|place=6: 311. 1829
|year=1829
}}
|common_names=Skeletonplant;rush pink
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Cichorieae;Lygodesmia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Cichorieae]]</div><div class="higher-taxon"><small>genus</small>[[Lygodesmia]]</div></div>
|etymology=Greek lygos, twig or stick, and desme, bundle, alluding to clumped, sticklike stems with reduced leaves
|volume=Volume 19
|mention_page=page 219, 360, 361, 370
|treatment_page=page 369
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> 5–80 cm; rhizomatous or taprooted (roots vertical, rhizomes spreading). <b>Stems</b> 1–5+, (green to gray-green, rushlike, ± striate), simple to or much branched proximally and/or distally, usually glabrous, rarely tomentulose. <b>Leaves</b> basal (sometimes in rosettes) and cauline; sessile; blades linear to subulate, sometimes reduced to scales, margins entire or sparingly pinnately laciniately lobed (faces usually glabrous, rarely tomentulose). <b>Heads</b> borne singly or in loose, corymbiform arrays. <b>Peduncles</b> not inflated distally, bracteate. <b>Calyculi</b> of 8–16, ovate to subulate or scalelike bracteoles in 1–2 series, unequal, margins scarious to erose-ciliate, faces glabrous or tomentulose, sometimes roughened. <b>Involucres</b> cylindric, 5–8 mm diam. (apices truncate, narrow or spreading). <b>Phyllaries</b> 5–12 in ± 1 series, grayish green, ± linear, equal, margins scarious, faces glabrous or puberulent, sometimes roughened. <b>Receptacles</b> flat, sometimes pitted, sometimes scabrous, epaleate. <b>Florets</b> 5–12; corollas usually pink to lavender or purple, rarely white. <b>Cypselae</b> pale green to tan, subcylindric, straight or arcuate, subterete or longitudinally angled or sulcate, apices sometimes narrowed, not beaked, faces smooth or rugose-roughened, glabrous; pappi persistent, of 60–80, tawny or white, ± connate, smooth bristles in 1–2+ series. <b>x</b> = 9.</span><!--

-->{{Treatment/Body
|distribution=North America;n Mexico
|discussion=<p>Species 5 (5 in the flora).</p><!--
--><p><i>Lygodesmia</i> is easily recognized by the green, rushlike stems, narrow and often greatly reduced leaves, and terminal heads of showy, rosy, ligulate florets. It has been consideredcongeneric with <i>Stephanomeria</i>, <i>Prenanthella</i>, and <i>Shinnersoseris</i>; A. S. Tomb (1980) concluded that those taxa are not closely related. The annual species with plumose pappus bristles that formerly were included in <i>Lygodesmia</i> have been removed to those genera.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Involucres 10–16 mm; phyllary apices not appendaged; corollas 18–20 mm, ligules 3–4 mm wide; cypselae 6–10 mm; pappi 6–9 mm
|[[Lygodesmia juncea|Lygodesmia juncea]]
|-id=key-0-1
|1
|Involucres 14–25 mm; phyllary apices appendaged (reduced in L. grandiflora var. arizonica); corollas 12–40 mm, ligules 4–6(–10) mm wide; cypselae 10–19 mm; pappi 10–18 mm
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Basal leaves not forming rosettes; cauline leaves well developed, not reduced to scales; plants 5–25(–60) cm
|[[Lygodesmia grandiflora|Lygodesmia grandiflora]]
|-id=key-0-2
|2
|Basal leaves forming rosettes (often withered at flowering); cauline leaves mostly reduced to scales; plants 25–65 cm
|[[#key-0-3| > 3]]
|-id=key-0-3
|3
|Phyllaries 5–7; florets 5(–7)
|[[Lygodesmia ramosissima|Lygodesmia ramosissima]]
|-id=key-0-3
|3
|Phyllaries 8–10; florets 8–12
|[[#key-0-4| > 4]]
|-id=key-0-4
|4
|Basal leaves entire; cypselae sulcate on inner faces; stems strongly striate; Florida, Georgia
|[[Lygodesmia aphylla|Lygodesmia aphylla]]
|-id=key-0-4
|4
|Basal leaves laciniately lobed; cypselae smooth on inner faces; stems weakly striate; New Mexico, Oklahoma, Texas
|[[Lygodesmia texana|Lygodesmia texana]]
|}
</div></div><!--

-->{{#Taxon:
name=Lygodesmia
|author=David J. Bogler
|authority=D. Don
|rank=genus
|parent rank=tribe
|synonyms=
|basionyms=
|family=Asteraceae
|illustrator=Bee F. Gunn
|illustration copyright=Flora of North America Association
|distribution=North America;n Mexico
|reference=None
|publication title=Edinburgh New Philos. J.
|publication year=1829
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V19_591.xml
|tribe=Asteraceae tribe Cichorieae
|genus=Lygodesmia
}}<!--

-->[[Category:Treatment]][[Category:Asteraceae tribe Cichorieae]]