View source for Draba streptobrachia

{{Treatment/ID
|accepted_name=Draba streptobrachia
|accepted_authority=R. A. Price
|publications={{Treatment/Publication
|title=Brittonia
|place=32: 168. 1980
|year=1980
}}
|basionyms={{Treatment/ID/Synonym
|name=Draba chrysantha
|authority=S. Watson forma dasycarpa O. E. Schulz
}}
|synonyms={{Treatment/ID/Synonym
|name=Draba spectabilis var. dasycarpa
|authority=(O. E. Schulz) C. L. Hitchcock
}}
|hierarchy=Brassicaceae;Brassicaceae tribe Arabideae;Draba;Draba streptobrachia
|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>[[Draba]]</div><div class="higher-taxon"><small>species</small>[[Draba streptobrachia]]</div></div>
|volume=Volume 7
|mention_page=page 275, 277, 346
|treatment_page=page 341
}}<!--

--><span class="statement" id="st-undefined" data-properties="">Perennials; caudex branched (often with persistent leaf remains, branches not creeping); not scapose. <b>Stems</b> unbranched, (0.1–)0.2–1(–1.3) dm, pubescent throughout, trichomes subsessile (often crisped), 3–5-rayed, stellate, 0.03–0.25(–0.4) mm, (rays sometimes forked). <b>Basal</b> leaves rosulate; petiole (obscure), usually not ciliate, rarely sparsely pubescent, (trichomes simple, to 0.6 mm); blade oblanceolate to linear-oblanceolate, (0.4–)0.5–3(–4) cm × 1–5 mm, margins entire, surfaces pubescent with short-stalked (crisped), 3–8-rayed trichomes, 0.05–0.4 mm. <b>Cauline</b> leaves (1 or) 2–4 (or 5); sessile; blade oblong to ovate or linear, margins entire, surfaces pubescent as basal. <b>Racemes</b> 4–10(–18)-flowered, ebracteate, elongated in fruit; rachis not flexuous, pubescent as stem. <b>Fruiting</b> pedicels ascending, usually straight, rarely curved upward, (2–)3–8(–12) mm, pubescent as stem. <b>Flowers</b>: sepals ovate, 2–3 mm, pubescent, (trichomes simple and short-stalked, 2–4-rayed); petals yellow, spatulate, 3–5 × 1.5–3 mm, (clawed); anthers ovate, 0.25–0.4 mm. <b>Fruits</b> (not appressed to rachis), ovate to elliptic or lanceolate, slightly twisted or plane, flattened, (3–)5–10 × 2–4 mm; valves often pubescent, occasionally glabrous, trichomes simple and minutely stalked, 2–4-rayed, 0.03–0.25 mm; ovules 10–16(–18) per ovary; style 0.3–0.8(–1.2) mm. <b>Seeds</b> oblong, 1–1.6 × 0.6–1 mm. <b>2n</b> = ca. 64.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jul–Aug.
|habitat=Alpine tundra, scree, ridges and alpine slopes, turf, fellfields, talus slopes, crevices in rock ledges, loose soils
|elevation=3200-4000 m
|distribution=Colo.
|discussion=<p>As indicated by Price, <i>Draba streptobrachia</i> is an apomict, yielding abundant, well-developed seed despite producing only abortive pollen. Morphological studies (M. D. Windham, unpubl.) suggest that the species may be an allopolyploid containing a genome from <i>D. crassa</i>.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Draba streptobrachia
|author=
|authority=R. A. Price
|rank=species
|parent rank=genus
|synonyms=Draba spectabilis var. dasycarpa
|basionyms=Draba chrysantha
|family=Brassicaceae
|phenology=Flowering Jul–Aug.
|habitat=Alpine tundra, scree, ridges and alpine slopes, turf, fellfields, talus slopes, crevices in rock ledges, loose soils
|elevation=3200-4000 m
|distribution=Colo.
|reference=None
|publication title=Brittonia
|publication year=1980
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V7/V7_476.xml
|tribe=Brassicaceae tribe Arabideae
|genus=Draba
|species=Draba streptobrachia
}}<!--

-->[[Category:Treatment]][[Category:Draba]]