View source for Koanophyllon

{{Treatment/ID
|accepted_name=Koanophyllon
|accepted_authority=Arruda in H. Koster
|publications={{Treatment/Publication
|title=in H. Koster, Trav. Brazil,
|place=495. 1816
|year=1816
}}
|common_names=Umbrella thoroughwort
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Eupatorieae;Koanophyllon
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Eupatorieae]]</div><div class="higher-taxon"><small>genus</small>[[Koanophyllon]]</div></div>
|etymology=Etymology unknown; possibly an oblique reference to the leaves as a source of dye like indigo
|volume=Volume 21
|mention_page=page 461, 462
|treatment_page=page 542
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> subshrubs, or shrubs [trees, vines], 40–200+ cm. <b>Stems</b> erect, branched. <b>Leaves</b> cauline; mostly opposite (distal sometimes alternate); petiolate; blades usually 3-nerved from bases, mostly deltate or ovate to triangular-lanceolate or lanceolate (lacking internal translucent lenses or streaks), margins entire or dentate, faces glabrous or sparsely hispidulous, puberulent, or strigose, sometimes sparsely to densely gland-dotted. <b>Heads</b> discoid, in corymbiform to paniculiform arrays. <b>Involucres</b> obconic to hemispheric, 2–3 mm diam. <b>Phyllaries</b> persistent (at least outermost), 7–16 in 1–2[–4] series, 3-nerved, ovate to lanceolate, ± equal or unequal. <b>Receptacles</b> flat or convex, epaleate. <b>Florets</b> 3–13[–20]; corollas whitish to pinkish [violet], throats funnelform (lengths ca. 2.5 times diams.); styles: bases sometimes enlarged, glabrous, branches filiform to obscurely clavate. <b>Cypselae</b> prismatic, 5-ribbed, sparsely hispidulous or piloso-strigose, sometimes gland-dotted; pappi persistent, of 30–35, barbellate bristles in 1 series. <b>x</b> = 10.</span><!--

-->{{Treatment/Body
|distribution=s;w United States;Mexico;West Indies;Central America;South America.
|discussion=<p>Species ca. 115 (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
|Leaf blades ovate to ovate-deltate or ovate-lanceolate, abaxial faces densely gland-dotted
|[[Koanophyllon villosum|Koanophyllon villosum]]
|-id=key-0-1
|1
|Leaf blades lanceolate to triangular-lanceolate, abaxial faces eglandular or sparsely gland-dotted
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Leaves usually opposite, sometimes subopposite to alternate on distal 1/3 of stems, blade apices acuminate, adaxial faces glabrous; involucres 4.5–5.5 mm; phyllaries: outermost narrowly lanceolate, glabrous, margins hyaline on proximal 2/3, eciliate
|[[Koanophyllon solidaginifolium|Koanophyllon solidaginifolium]]
|-id=key-0-2
|2
|Leaves opposite, blade apices acute, adaxial faces sparsely strigose to hispidulous; involucres (3–)3.5–4 mm; phyllaries: outermost ovate-elliptic or obovate to narrowly oblong-lanceolate, puberulent, margins herbaceous, usually weakly ciliate
|[[Koanophyllon palmeri|Koanophyllon palmeri]]
|}
</div></div><!--

-->{{#Taxon:
name=Koanophyllon
|author=Guy L. Nesom
|authority=Arruda in H. Koster
|rank=genus
|parent rank=tribe
|synonyms=
|basionyms=
|family=Asteraceae
|distribution=s;w United States;Mexico;West Indies;Central America;South America.
|reference=None
|publication title=in H. Koster, Trav. Brazil,
|publication year=1816
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V19-20-21/V21_1376.xml
|tribe=Asteraceae tribe Eupatorieae
|genus=Koanophyllon
}}<!--

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