View source for Boechera johnstonii

{{Treatment/ID
|accepted_name=Boechera johnstonii
|accepted_authority=(Munz) Al-Shehbaz
|publications={{Treatment/Publication
|title=Novon
|place=13: 386. 2003
|year=2003
}}
|basionyms={{Treatment/ID/Basionym
|name=Arabis johnstonii
|authority=Munz
|rank=species
|publication_title=Bull. S. Calif. Acad. Sci.
|publication_place=31: 63. 1932
}}
|synonyms={{Treatment/ID/Synonym
|name=Arabis hirshbergiae
|authority=S. Boyd
|rank=species
}} {{Treatment/ID/Synonym
|name=Boechera hirshbergiae
|authority=(S. Boyd) Al-Shehbaz
|rank=species
}}
|hierarchy=Brassicaceae;Brassicaceae tribe Boechereae;Boechera;Boechera johnstonii
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Brassicaceae]]</div><div class="higher-taxon"><small>tribe</small>[[Brassicaceae tribe Boechereae]]</div><div class="higher-taxon"><small>genus</small>[[Boechera]]</div><div class="higher-taxon"><small>species</small>[[Boechera johnstonii]]</div></div>
|volume=Volume 7
|mention_page=page 353
|treatment_page=page 386
}}<!--

--><span class="statement" id="st-undefined" data-properties="">Perennials; long-lived; (cespitose); sexual; caudex woody. <b>Stems</b> usually 1 per caudex branch, arising from center of rosette near ground surface, 0.5–2 dm, densely pubescent proximally, trichomes short-stalked, 4–10-rayed, 0.07–0.15 mm, sparsely to densely pubescent distally. <b>Basal</b> leaves: blade narrowly oblanceolate, 1.5–4 mm wide, margins entire, not ciliate, surfaces densely pubescent, trichomes short-stalked, 6–14-rayed, 0.07–0.15 mm. <b>Cauline</b> leaves: 4–10, often concealing stem proximally; blade auricles absent, surfaces of distalmost leaves densely pubescent. <b>Racemes</b> 10–18-flowered, unbranched. <b>Fruiting</b> pedicels divaricate-ascending, straight, 5–14 mm, pubescent, trichomes appressed, branched. <b>Flowers</b> ascending at anthesis; sepals pubescent; petals purple, 9–14 × 2–4 mm, glabrous; pollen ellipsoid. <b>Fruits</b> divaricate-ascending, not appressed to rachis, not secund, straight, edges parallel, 4–6 cm × 2.5–4 mm; valves glabrous; ovules 26–34 per ovary; style (0.7–)1–2 mm. <b>Seeds</b> uniseriate, 1.9–2.7 × 1.5–2.2 mm; wing continuous, 0.3–0.7 mm wide.</span><!--

-->{{Treatment/Body
|phenology=Flowering Feb–Mar.
|habitat=Rocky areas and gravelly soil in chaparral and oak-pine savannas
|elevation=1300-1700 m
|distribution=Calif.
|discussion=<p>Of conservation concern.</p><!--
--><p><i>Boechera johnstonii</i> and B. hirshbergiae are too similar to be considered distinct species. Even with the expanded circumscription, this distinctive sexual species is known only from the area of Cuyamaca Lake (San Diego County) and the San Jacinto Mountains (Riverside County).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Boechera johnstonii
|authority=(Munz) Al-Shehbaz
|rank=species
|parent rank=genus
|synonyms=Arabis hirshbergiae;Boechera hirshbergiae
|basionyms=Arabis johnstonii
|family=Brassicaceae
|phenology=Flowering Feb–Mar.
|habitat=Rocky areas and gravelly soil in chaparral and oak-pine savannas
|elevation=1300-1700 m
|distribution=Calif.
|reference=None
|publication title=Novon
|publication year=2003
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V7/V7_543.xml
|tribe=Brassicaceae tribe Boechereae
|genus=Boechera
|species=Boechera johnstonii
}}<!--

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