View source for Athysanus pusillus

{{Treatment/ID
|accepted_name=Athysanus pusillus
|accepted_authority=(Hooker) Greene
|publications={{Treatment/Publication
|title=Bull. Calif. Acad. Sci.
|place=1: 72. 1885
|year=1885
}}
|basionyms={{Treatment/ID/Basionym
|name=Thysanocarpus pusillus
|authority=Hooker
|rank=species
|publication_title=Icon. Pl.
|publication_place=1: plate 42. 1837
}}
|synonyms={{Treatment/ID/Synonym
|name=Athysanus pusillus var. glabrior
|authority=S. Watson
|rank=variety
}} {{Treatment/ID/Synonym
|name=Thysanocarpus oblongifolius
|authority=
|rank=species
}}
|hierarchy=Brassicaceae;Brassicaceae tribe Arabideae;Athysanus;Athysanus pusillus
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Brassicaceae]]</div><div class="higher-taxon"><small>tribe</small>[[Brassicaceae tribe Arabideae]]</div><div class="higher-taxon"><small>genus</small>[[Athysanus]]</div><div class="higher-taxon"><small>species</small>[[Athysanus pusillus]]</div></div>
|volume=Volume 7
|mention_page=page 268
|treatment_page=page 267
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>sparsely to densely pubescent proximally, sometimes glabrous distally. <b>Stems</b> (0.2–)0.5–3(–5) dm. <b>Basal</b> leaves: petiole 0.1–0.5 cm; blade oblanceolate, obovate, or oblong, 0.3–1.5(–2) cm × (1–)2–6(–8) mm, margins entire or dentate, apex acute to obtuse, surfaces uniformly pubescent, trichomes cruciform and 3-rayed, adaxially sometimes mixed with coarse, simple ones. <b>Cauline</b> leaves 1–6; blade similar and equaling or smaller than basal. <b>Fruiting</b> pedicels slender, (1.5–)2–4(–6) mm. <b>Flowers</b>: sepals 0.5–1 × 0.3–0.7 mm; petals oblong, 1.5–3 × 0.5–1 mm; filaments 0.4–0.6 mm; anthers (0.05–)0.1–0.2(–0.25) mm. <b>Fruits</b> usually orbicular to obovate, rarely broadly oblong, 1-locular, not twisted; valves thin, veins sometimes prominent, usually pubescent, rarely glabrous, trichomes simple, to 0.5 mm, hooked (sometimes restricted to margins, or mixed with smaller, sessile, cruciform or 3-rayed ones); septum absent; ovules 2(–4) per ovary; style 0.05–0.2 mm. <b>Seeds</b> 1, (0.8–)0.9–1.1(–1.2) × (0.5–)0.7–0.9(–1) mm. <b>2n</b> = 26.</span><!--

-->{{Treatment/Body
|phenology=Flowering Feb–Jun.
|habitat=Open grassy slopes, grassy glades in woodlands, chaparral, sandy and gravelly flats, flood plains, rock outcrops, cliffs and ledges, on limestone, serpentine, sandstone, granitic and basaltic substrates
|elevation=0-1800 m
|distribution=B.C.;Ariz.;Calif.;Idaho;Mont.;Nev.;Oreg.;Wash.;Mexico (Baja California).
|discussion=<p>Records of <i>Athysanus pusillus</i> for Montana appear to be solely from Ravalli County, and for <i>Nevada</i> from Storey and Washoe counties.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Athysanus pusillus
|authority=(Hooker) Greene
|rank=species
|parent rank=genus
|synonyms=Athysanus pusillus var. glabrior;Thysanocarpus oblongifolius
|basionyms=Thysanocarpus pusillus
|family=Brassicaceae
|phenology=Flowering Feb–Jun.
|habitat=Open grassy slopes, grassy glades in woodlands, chaparral, sandy and gravelly flats, flood plains, rock outcrops, cliffs and ledges, on limestone, serpentine, sandstone, granitic and basaltic substrates
|elevation=0-1800 m
|distribution=B.C.;Ariz.;Calif.;Idaho;Mont.;Nev.;Oreg.;Wash.;Mexico (Baja California).
|reference=None
|publication title=Bull. Calif. Acad. Sci.
|publication year=1885
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V7/V7_357.xml
|tribe=Brassicaceae tribe Arabideae
|genus=Athysanus
|species=Athysanus pusillus
}}<!--

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