View source for Draba helleriana

{{Treatment/ID
|accepted_name=Draba helleriana
|accepted_authority=Greene
|publications={{Treatment/Publication
|title=Pittonia
|place=4: 17. 1899
|year=1899
}}
|basionyms={{Treatment/ID/Basionym
|name=Draba stylosa
|authority=unknown
|publication_title=
|publication_place=1897
}}
|synonyms={{Treatment/ID/Synonym
|name=Draba aurea var. tylosa
|authority=A. Gray
}} {{Treatment/ID/Synonym
|name=Draba helleriana var. leiocarpa
|authority=O. E. Schulz
}} {{Treatment/ID/Synonym
|name=Draba helleriana var. neomexicana
|authority=(Greene) O. E. Schulz
}} {{Treatment/ID/Synonym
|name=Draba helleriana var. patens
|authority=(A. Heller) O. E. Schulz
}} {{Treatment/ID/Synonym
|name=Draba helleriana var. pinetorum
|authority=(Greene) O. E. Schulz
}} {{Treatment/ID/Synonym
|name=Draba neomexicana
|authority=(A. Gray) A. Heller
}} {{Treatment/ID/Synonym
|name=Draba neomexicana var. robusta
|authority=A. Heller
}} {{Treatment/ID/Synonym
|name=Draba pallida
|authority=unknown
}} {{Treatment/ID/Synonym
|name=Draba patens
|authority=unknown
}} {{Treatment/ID/Synonym
|name=Draba pinetorum
|authority=unknown
}}
|hierarchy=Brassicaceae;Brassicaceae tribe Arabideae;Draba;Draba helleriana
|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 helleriana]]</div></div>
|volume=Volume 7
|mention_page=page 272, 278, 279, 330, 345
|treatment_page=page 311
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Biennials </b>or perennials; (short-lived); caudex simple or branched; not scapose. <b>Stems</b> branched, (0.1–)1.5–4.3(–5.1) dm, hirsute throughout, trichomes simple, 0.4–1.3(–1.8) mm, with short-stalked to subsessile, 3–5-rayed ones, 0.2–0.4 mm, (some slightly coarser, 2-rayed). <b>Basal</b> leaves rosulate; petiolate; petiole base ciliate or not; blade oblanceolate to obovate, 0.9–4.1(–5.2) cm × 2–7(–10) mm, margins entire or dentate, surfaces pubescent, abaxially with stalked, cruciform, and fewer 3–5-rayed trichomes, 0.1–0.6 mm, adaxially with cruciform and simple trichomes, 0.4–1.3 mm, and smaller 2-rayed ones. <b>Cauline</b> leaves (8–)12–31(–43); sessile; blade ovate to lanceolate or oblong, margins usually dentate, rarely subentire, surfaces pubescent as basal. <b>Racemes</b> 10–52(–83)-flowered, usually ebracteate, rarely proximalmost 1 or 2 flowers bracteate, elongated in fruit; rachis not flexuous, pubescent as stem. <b>Fruiting</b> pedicels horizontal to divaricate-ascending, straight or slightly curved upward, 4–10(–13) mm, pubescent as rachis abaxially, glabrous adaxially. <b>Flowers</b>: sepals oblong, 2.5–4 mm, pubescent, (trichomes simple and stalked, 2-rayed); petals yellow, oblanceolate, 5–7 × 1.5–2.2 mm; anthers oblong, 0.5–0.8 mm. <b>Fruits</b> (not appressed to rachis), lanceolate to ovate or oblong-lanceolate, slightly to strongly twisted or plane, flattened, 5–15 × 2–3.5 mm; valves puberulent, trichomes simple and subsessile, 2(–4)-rayed, 0.03–0.25(–0.8) mm; ovules 14–28 per ovary; style (1–)1.5–3.5 mm. <b>Seeds</b> oblong, 1–1.3 × 0.6–0.8 mm. <b>2n</b> = 18.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jun–Sep.
|habitat=Oak and pine-fir woodlands, aspen groves, rocky meadows
|elevation=2100-3600 m
|distribution=Ariz.;Colo.;N.Mex.;Mexico (Nuevo León).
|discussion=<p><i>Draba helleriana</i> is highly variable and was divided by C. L. Hitchcock (1941) into four varieties. For a discussion of those and the circumscription of the species, see I. A. Al-Shehbaz and M. D. Windham (2007).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Draba helleriana
|author=
|authority=Greene
|rank=species
|parent rank=genus
|synonyms=Draba aurea var. tylosa;Draba helleriana var. leiocarpa;Draba helleriana var. neomexicana;Draba helleriana var. patens;Draba helleriana var. pinetorum;Draba neomexicana;Draba neomexicana var. robusta;Draba pallida;Draba patens;Draba pinetorum
|basionyms=Draba stylosa
|family=Brassicaceae
|phenology=Flowering Jun–Sep.
|habitat=Oak and pine-fir woodlands, aspen groves, rocky meadows
|elevation=2100-3600 m
|distribution=Ariz.;Colo.;N.Mex.;Mexico (Nuevo León).
|reference=None
|publication title=Pittonia
|publication year=1899
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V7/V7_410.xml
|tribe=Brassicaceae tribe Arabideae
|genus=Draba
|species=Draba helleriana
}}<!--

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