View source for Androsace occidentalis

{{Treatment/ID
|accepted_name=Androsace occidentalis
|accepted_authority=Pursh
|publications={{Treatment/Publication
|title=Fl. Amer. Sept.
|place=1: 137. 1813 ,
}}
|common_names=Western rock jasmine
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Androsace arizonica
|authority=A. Gray
|rank=species
}} {{Treatment/ID/Synonym
|name=Androsace occidentalis var. arizonica
|authority=(A. Gray) H. St. John.
|rank=variety
}} {{Treatment/ID/Synonym
|name=Androsace occidentalis var. simplex
|authority=(Rydberg) H. St. John
|rank=variety
}} {{Treatment/ID/Synonym
|name=Androsace platysepala
|authority=
|rank=species
}}
|hierarchy=Primulaceae;Androsace;Androsace occidentalis
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Primulaceae]]</div><div class="higher-taxon"><small>genus</small>[[Androsace]]</div><div class="higher-taxon"><small>species</small>[[Androsace occidentalis]]</div></div>
|volume=Volume 8
|mention_page=page 260
|treatment_page=page 262
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>annual, inconspicuous, not mat-forming. <b>Leaves</b> in single rosette; petiole obscure; blade lanceolate, oblanceolate, or spatulate, 5–30 × 4–9 mm, base obscurely narrowing to stem, margins with simple hairs, surfaces puberulent, hairs simple. <b>Scapes</b> 1–15, 2–10 cm, glabrescent to puberulent. <b>Inflorescences</b> 3–15-flowered; involucral bracts lanceolate to elliptic or ovate, relatively broad. <b>Pedicels</b> erect to arcuate, slender, unequal, 0.3–3 cm. <b>Flowers</b>: calyx broadly campanulate, ridged, 3–5 mm, lobes erect, broadly lanceolate, apex acute to obtuse; corolla tube equaling or shorter than calyx, limb ca. 3 mm diam. <b>Capsules</b> ± equaling calyx, 3–5 mm. <b>2n</b> = 20.</span><!--

-->{{Treatment/Body
|phenology=Flowering early-mid summer.
|habitat=Open, grassy meadows, sandy or gravelly open soils, often in disturbed areas
|elevation=300-1700 m
|distribution=Alta.;B.C.;Man.;Ont.;Sask.;Ariz.;Ark.;Calif.;Colo.;Idaho;Ill.;Ind.;Iowa;Kans.;La.;Mass.;Mich.;Minn.;Mo.;Mont.;Nebr.;N.Mex.;N.Dak.;Ohio;Okla.;S.Dak.;Tex.;Utah;Wis.;Wyo.
|discussion=<p><i>Androsace occidentalis</i> is widespread across the central and western United States, extending into southern Canada. It is often confused with <i>A. septentrionalis</i>, with which it overlaps geographically somewhat in the western portion of its range. <i>Androsace occidentalis</i> is generally restricted to lower elevations and is distinguished by its broad involucral bracts and cup-shaped calyx. In <i>A. septentrionalis</i>, the involucral bracts are narrow and the calyx V-shaped at the base, a shape enhanced by the more prominent calyx ridges. Hybridization between <i>A. occidentalis</i> and <i>A. septentrionalis</i> has not been documented; some specimens from intermediate elevations in the Four Corners area show intermediate bract morphology and slight glandular pubescence, a characteristic of some southwestern populations of <i>A. septentrionalis</i>.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Androsace occidentalis
|authority=Pursh
|rank=species
|parent rank=genus
|synonyms=Androsace arizonica;Androsace occidentalis var. arizonica;Androsace occidentalis var. simplex;Androsace platysepala
|basionyms=
|family=Primulaceae
|phenology=Flowering early-mid summer.
|habitat=Open, grassy meadows, sandy or gravelly open soils, often in disturbed areas
|elevation=300-1700 m
|distribution=Alta.;B.C.;Man.;Ont.;Sask.;Ariz.;Ark.;Calif.;Colo.;Idaho;Ill.;Ind.;Iowa;Kans.;La.;Mass.;Mich.;Minn.;Mo.;Mont.;Nebr.;N.Mex.;N.Dak.;Ohio;Okla.;S.Dak.;Tex.;Utah;Wis.;Wyo.
|reference=None
|publication title=Fl. Amer. Sept.
|publication year=
|special status=Illustrated;Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V8/V8_536.xml
|genus=Androsace
|species=Androsace occidentalis
}}<!--

-->[[Category:Treatment]][[Category:Androsace]]