View source for Chorizanthe robusta

{{Treatment/ID
|accepted_name=Chorizanthe robusta
|accepted_authority=Parry
|publications={{Treatment/Publication
|title=Proc. Davenport Acad. Nat. Sci.
|place=5: 176. 1889
|year=1889
}}
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}{{Treatment/ID/Special_status
|code=C
|label=Conservation concern
}}
|basionyms=
|synonyms=
|hierarchy=Polygonaceae;Polygonaceae subfam. Eriogonoideae;Chorizanthe;Chorizanthe subg. Amphietes;Chorizanthe sect. Ptelosepala;Chorizanthe robusta
|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>[[Chorizanthe]]</div><div class="higher-taxon"><small>subgenus</small>[[Chorizanthe subg. Amphietes]]</div><div class="higher-taxon"><small>section</small>[[Chorizanthe sect. Ptelosepala]]</div><div class="higher-taxon"><small>species</small>[[Chorizanthe robusta]]</div></div>
|volume=Volume 5
|mention_page=page 447
|treatment_page=page 455
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>erect to spreading or decumbent, 0.5–3 × 0.1–6 dm, villous. <b>Leaves</b> basal or nearly so; petiole 1–4(–7) cm; blade oblanceolate, 1.5–5 × 0.2–0.7(–1) cm, villous. <b>Inflorescences</b> with secondary branches not suppressed except in terminal clusters of involucres, green to reddish; bracts 2, similar to proximal leaf blades only reduced, short-petiolate, becoming linear and aciculate at distal nodes, acerose, 1–5 cm × 2–5(–7) mm, awns absent. <b>Involucres</b> 1, greenish, cylindric, not ventricose, 2.5–4 mm, with white to pinkish, thin scarious margins restricted to basal portion of teeth, not corrugate, thinly pubescent abaxially; teeth spreading, equal, 0.3–0.8(–1) mm; awns uncinate with longer ones 0.7–1.3 mm and anterior one mostly 1–1.3 mm, these alternating with shorter (0.3–0.7 mm) ones. <b>Flowers</b> slightly exserted; perianth bicolored with floral tube white and tepals white to rose, cylindric, 2.5–4 mm, pubescent abaxially; tepals connate 1/4 their length, monomorphic, oblanceolate to narrowly oblong, usually truncate to rounded and erose or denticulate apically, occasionally distinctly cuspidate; stamens 9, included; filaments distinct, 2–3.5 mm, glabrous; anthers pink to red or maroon, oblong, 0.6–0.8 mm. <b>Achenes</b> light brown, globose-lenticular, 3.5–4 mm.</span><!--

-->{{Treatment/Body
|distribution=wc Calif.
|discussion=<p>Varieties 2 (2 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
|Margins of involucres white; plants spreading or decumbent; sandy to gravelly places; Alameda and San Mateo counties s in mountains and near coast to n Monterey County
|[[Chorizanthe robusta var. robusta|Chorizanthe robusta var. robusta]]
|-id=key-0-1
|1
|Margins of involucres rose-pink; plants erect; annual grasslands near Scotts Valley, Santa Cruz Mountains, Santa Cruz County
|[[Chorizanthe robusta var. hartwegii|Chorizanthe robusta var. hartwegii]]
|}
</div></div><!--

-->{{#Taxon:
name=Chorizanthe robusta
|authority=Parry
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Polygonaceae
|distribution=wc Calif.
|reference=None
|publication title=Proc. Davenport Acad. Nat. Sci.
|publication year=1889
|special status=Endemic;Conservation concern
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V5/V5_947.xml
|subfamily=Polygonaceae subfam. Eriogonoideae
|genus=Chorizanthe
|subgenus=Chorizanthe subg. Amphietes
|section=Chorizanthe sect. Ptelosepala
|species=Chorizanthe robusta
}}<!--

-->[[Category:Treatment]][[Category:Chorizanthe sect. Ptelosepala]]