View source for Draba grayana

{{Treatment/ID
|accepted_name=Draba grayana
|accepted_authority=(Rydberg) C. L. Hitchcock
|publications={{Treatment/Publication
|title=Revis. Drabas W. N. Amer.,
|place=29. 1941
|year=1941
}}
|basionyms={{Treatment/ID/Basionym
|name=Draba streptocarpa var. grayana
|authority=Rydberg
|publication_title=Bull. Torrey Bot. Club
|publication_place=31: 555. 1904
}} {{Treatment/ID/Basionym
|name=Draba alpicola
|authority=Osterhout
|publication_title=
|publication_place=1923
}}
|synonyms=
|hierarchy=Brassicaceae;Brassicaceae tribe Arabideae;Draba;Draba grayana
|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 grayana]]</div></div>
|volume=Volume 7
|mention_page=page 275, 306, 307, 346
|treatment_page=page 310
}}<!--

--><span class="statement" id="st-undefined" data-properties="">Perennials; (densely cespitose); caudex branched (covered with persistent, somewhat thickened, dry petioles); not scapose. <b>Stems</b> unbranched, 0.08–0.6 dm, densely to moderately pubescent throughout, trichomes simple and stalked, 2- or 3-rayed, 0.2–1 mm. <b>Basal</b> leaves rosulate; petiolate; petiole ciliate, (trichomes simple, 0.2–1 mm); blade linear to linear-oblanceolate, (0.4–)0.6–1.5(–2) cm × 1–2 mm, margins entire, (pubescent as petiole), surfaces pubescent abaxially with simple and stalked, 2- or 3-rayed trichomes, 0.1–0.4 mm, adaxially glabrate or subapically sparsely pubescent with simple trichomes. <b>Cauline</b> leaves 1–4; sessile; blade linear to linear-oblanceolate, margins entire, surfaces pubescent as basal. <b>Racemes</b> 5–12(–16)-flowered, usually ebracteate, rarely proximalmost flowers bracteate, slightly elongated in fruit; rachis not flexuous, pubescent as stem. <b>Fruiting</b> pedicels divaricate-ascending, straight or slightly curved upward, 1.5–6 mm, pubescent as stem. <b>Flowers</b>: sepals ovate, 1.5–2 mm, pubescent, (trichomes simple and short-stalked, 2- or 3-rayed); petals bright yellow, spatulate, 3–4.5 × 1–2 mm, (flared, clawed); anthers ovate, 0.3–0.5 mm. <b>Fruits</b> lanceolate to oblong-lanceolate, slightly twisted or plane, flattened, 4–12 × 1.5–3 mm; valves glabrous or pubescent, trichomes simple, 0.07–0.2 mm; ovules 16–20 per ovary; style 0.4–1.2 mm. <b>Seeds</b> ovoid, 1–1.4 × 0.7–1 mm. <b>2n</b> = 24 ± 3.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jul–Aug.
|habitat=Alpine tundra, fellfields, gravelly wet meadows
|elevation=3500-4000 m
|distribution=Colo.
|discussion=<p>Of conservation concern.</p><!--
--><p><i>Draba grayana</i> is an apomictic species clearly related to <i>D. exunguiculata</i>, with which it is occasionally sympatric (see discussion of 36. <i>D. exunguiculata</i> for distinguishing features). It is known from Chaffe, Clear Creek, Larimer, Park, and Summit counties.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Draba grayana
|author=
|authority=(Rydberg) C. L. Hitchcock
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Draba streptocarpa var. grayana;Draba alpicola
|family=Brassicaceae
|phenology=Flowering Jul–Aug.
|habitat=Alpine tundra, fellfields, gravelly wet meadows
|elevation=3500-4000 m
|distribution=Colo.
|reference=None
|publication title=Revis. Drabas W. N. Amer.,
|publication year=1941
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V7/V7_408.xml
|tribe=Brassicaceae tribe Arabideae
|genus=Draba
|species=Draba grayana
}}<!--

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