View source for Hymenothrix

{{Treatment/ID
|accepted_name=Hymenothrix
|accepted_authority=A. Gray
|publications={{Treatment/Publication
|title=Mem. Amer. Acad. Arts, n. s.
|place=4: 102. 1849
|year=1849
}}
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Chaenactidinae;Hymenothrix
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Heliantheae]]</div><div class="higher-taxon"><small>subtribe</small>[[Asteraceae (tribe Heliantheae) subtribe Chaenactidinae]]</div><div class="higher-taxon"><small>genus</small>[[Hymenothrix]]</div></div>
|etymology=Greek hymen, membrane, and thrix, hair, possibly alluding to scarious-aristate pappus scales
|volume=Volume 21
|mention_page=page 364, 365
|treatment_page=page 387
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Annuals,</b> biennials, or perennials, 10–70[–150] cm. <b>Stems</b> erect, branched. <b>Leaves</b> basal and cauline; mostly alternate (proximal opposite); petiolate; blades 2-ternately [pinnately] lobed, ultimate margins entire, faces usually ± scabrellous (hairs white, antrorse, 0.1–0.5 mm), sometimes glabrate, sometimes gland-dotted. <b>Heads</b> radiate or discoid, in corymbiform to paniculiform arrays. <b>Involucres</b> obconic to hemispheric, 4–8+ mm diam. <b>Phyllaries</b> persistent, 8–16 in 2–3 series (reflexed in fruit, obovate or oblanceolate to linear, subequal, sometimes subtended by 1–3 bractlets, thin-herbaceous to membranous, margins scarious, often tinged with purple). <b>Receptacles</b> flat or convex, knobby or smooth, epaleate. <b>Ray</b> florets 0, or 3–8+, pistillate, fertile; corollas yellowish. <b>Disc</b> florets 10–30+, bisexual, fertile; corollas yellowish or whitish or pinkish to purplish (sparsely glandular-hairy), tubes about equaling cylindric throats or much longer than broadly funnelform throats, lobes 5, lance-oblong or lance-linear. <b>Cypselae</b> obpyramidal, 4–5-angled, faces ribbed and sparsely hairy (hairs straight); pappi persistent, of 12–18 narrowly lanceolate to subulate, medially thickened, scarious-margined scales in 1 series, some or all ± aristate. <b>x</b> = 12.</span><!--

-->{{Treatment/Body
|distribution=sw United States;Mexico.
|discussion=<p>Species 5 (3 in the flora).</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Phyllaries (8–)12–16, mostly oblong to ovate or obovate; corollas white or pinkish to purplish, lobe lengths 2–3+ times throats; anthers pinkish to purplish
|[[Hymenothrix wrightii|Hymenothrix wrightii]]
|-id=key-0-1
|1
|Phyllaries 8(–12), mostly linear to narrowly oblanceolate; corollas creamy to bright yellow, lobe lengths 0.3–1 times throats; anthers yellowish
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Rays 3–8; corollas of disc florets mostly 5–7 mm
|[[Hymenothrix wislizeni|Hymenothrix wislizeni]]
|-id=key-0-2
|2
|Rays 0; corollas of disc florets mostly 4–4.5 mm
|[[Hymenothrix loomisii|Hymenothrix loomisii]]
|}
</div></div><!--

-->{{#Taxon:
name=Hymenothrix
|author=John L. Strother
|authority=A. Gray
|rank=genus
|parent rank=subtribe
|synonyms=
|basionyms=
|family=Asteraceae
|distribution=sw United States;Mexico.
|reference=None
|publication title=Mem. Amer. Acad. Arts, n. s.
|publication year=1849
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V21_972.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Chaenactidinae
|genus=Hymenothrix
}}<!--

-->[[Category:Treatment]][[Category:Asteraceae (tribe Heliantheae) subtribe Chaenactidinae]]