View source for Johanneshowellia

{{Treatment/ID
|accepted_name=Johanneshowellia
|accepted_authority=Reveal
|publications={{Treatment/Publication
|title=Brittonia
|place=56: 299. 2004
|year=2004
}}
|common_names=Howell’s-buckwheat
|basionyms={{Treatment/ID/Basionym
|name=Puberula
|authority=Rydberg
|rank=unranked
|publication_title=Fl. Rocky Mts.,
|publication_place=211. 1917
}}
|synonyms=
|hierarchy=Polygonaceae;Polygonaceae subfam. Eriogonoideae;Johanneshowellia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Polygonaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Polygonaceae subfam. Eriogonoideae]]</div><div class="higher-taxon"><small>genus</small>[[Johanneshowellia]]</div></div>
|etymology=for John Thomas Howell, 1903–1994, California botanist and Eriogonum scholar
|volume=Volume 5
|mention_page=page 219, 220
|treatment_page=page 443
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> annual; taproot slender. <b>Stems</b> arising directly from the root, weakly erect to spreading, solid, not fistulose or disarticulating into ringlike segments, silky-puberulent. <b>Leaves</b> usually quickly deciduous, basal, rosulate; petiole present; blade obovate to rounded or somewhat reniform, margins entire. <b>Inflorescences</b> terminal, cymose; branches dichotomous or trichotomous at proximal node, otherwise dichotomous, not brittle or disarticulating into segments, round, silky-puberulent; bracts 3, connate proximally, triangular or linear to narrowly lanceolate, scalelike or somewhat leaflike, not awned, glabrous to puberulent. <b>Peduncles</b> absent. <b>Involucral</b> bracts obscure, in tight spiral of (3–)4(–7) distinct, oblanceolate to obovate lobes, bractlike, not awned. <b>Flowers</b> 4–7 per involucral cluster; perianth white or pale yellowish to rose or red, broadly campanulate when open, narrowly urceolate when closed, smooth or minutely pustulose abaxially, glabrous; tepals 6, connate 1/4 their length, monomorphic or slightly dimorphic, entire apically; stamens 9; filaments basally adnate, glabrous; anthers white to pale pink, oblong. <b>Achenes</b> included, light brown, not winged, 3-gonous, glabrous. <b>Seeds</b>: embryo curved.</span><!--

-->{{Treatment/Body
|distribution=w United States.
|discussion=<p>Species 2 (2 in the flora).</p><!--
--><p>With recognition of <i>Johanneshowellia</i>, all members of <i>Eriogonum</i> have their involucral bracts fused into a distinct, turbinate to campanulate or hemispheric, tubular structure. In <i>Johanneshowellia</i>, the four to seven, distinct, involucral bracts are arranged in a tight spiral. Each 0.5–1.2 mm, awnless, entire to deeply lobed bract subtends a flower-bearing pedicel. These involucral bracts are themselves usually obscured by inflorescence bracts that subtend each node. As a result, care must be taken to observe the true nature of the involucral complex. The genus is allied with <i>Eriogonum </i>subg.<i> Oregonium</i>.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Perianths minutely pustulose basally and along midribs, 1.5-2 mm in fruit; outer tepals narrowly ovate, slightly auriculate basally with slightly undulate-crisped margins in fruit; plants grayish to greenish, mostly densely silky-puberulent
|[[Johanneshowellia puberula|Johanneshowellia puberula]]
|-id=key-0-1
|1
|Perianths smooth, 2-2.5 mm in fruit; tepals lanceolate, not auriculate basally, margins entire; plants reddish, thinly silky-puberulent
|[[Johanneshowellia crateriorum|Johanneshowellia crateriorum]]
|}
</div></div><!--

-->{{#Taxon:
name=Johanneshowellia
|author=James L. Reveal
|authority=Reveal
|rank=genus
|parent rank=subfamily
|synonyms=
|basionyms=Puberula
|family=Polygonaceae
|distribution=w United States.
|reference=None
|publication title=Brittonia
|publication year=2004
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V5/V5_925.xml
|subfamily=Polygonaceae subfam. Eriogonoideae
|genus=Johanneshowellia
}}<!--

-->[[Category:Treatment]][[Category:Polygonaceae subfam. Eriogonoideae]]