View source for Draba incerta

{{Treatment/ID
|accepted_name=Draba incerta
|accepted_authority=Payson
|publications={{Treatment/Publication
|title=Amer. J. Bot.
|place=4: 261. 1917
|year=1917
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Draba exalata
|authority=E. Ekman
}}{{Treatment/ID/Synonym
|name=Draba incerta var. laevicapsula
|authority=(Payson) Payson & H. St. John
}}{{Treatment/ID/Synonym
|name=Draba incerta var. peasei
|authority=(Fernald) Rollins
}}{{Treatment/ID/Synonym
|name=Draba laevicapsula
|authority=unknown
}}{{Treatment/ID/Synonym
|name=Draba peasei
|authority=unknown
}}
|hierarchy=Brassicaceae;Brassicaceae tribe Arabideae;Draba;Draba incerta
|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 incerta]]</div></div>
|volume=Volume 7
|mention_page=page 276, 278, 282, 283, 286
|treatment_page=page 313
}}<!--

--><span class="statement" id="st-undefined" data-properties="">Perennials; (cespitose, often pulvinate); caudex branched (dense with persistent leaf remains, branches sometimes terminating in sterile rosettes); scapose. <b>Stems</b> unbranched, (0.2–)0.4–1.4(–2.1) dm, often pubescent throughout, sometimes glabrous distally, trichomes often simple and 2–5-rayed, 0.1–0.5 mm, (sometimes with mostly subpectinate ones). <b>Basal</b> leaves rosulate; petiolate; petiole (0–1 cm), ciliate throughout; blade narrowly oblanceolate to linear, (0.4–)0.6–1.7(–2.5) cm × (1–)1.5–3.5(–5) mm, margins entire, (ciliate, trichomes usually simple, rarely 2-rayed, 0.2–1.1 mm), surfaces usually pubescent with short-stalked, pectinate trichomes, 0.15–0.5 mm, sometimes also with 4–6-rayed ones, (midvein usually obscure abaxially), sometimes glabrous adaxially. <b>Cauline</b> leaves usually 0 (or 1, as a bract); sessile; blade linear to oblong, margins entire, surfaces pubescent as basal. <b>Racemes</b> 3–14(–30)-flowered, usually ebracteate, rarely proximalmost flowers bracteate, elongated in fruit; rachis not flexuous, glabrous or pubescent as stem. <b>Fruiting</b> pedicels ascending, straight, (2.5–)4–11(–27) mm, glabrous or pubescent, trichomes 2–5-rayed or pectinate. <b>Flowers</b>: sepals broadly ovate, 2.5–3.5(–4) mm, pubescent, (trichomes simple and 2- or 3-rayed); petals yellow (fading white), oblanceolate to obovate, 4–6 × 1.5–2.5 mm; anthers ovate, 0.3–0.5 mm. <b>Fruits</b> broadly ovate to lanceolate, plane, flattened, 5–9(–11) × 2–4 mm; valves glabrous or puberulent, trichomes simple and 2-rayed, 0.05–0.3 mm; ovules 8–16(–20) per ovary; style 0.2–0.9 mm. <b>Seeds</b> oblong, 1.1–1.5 × 0.7–1 mm. <b>2n</b> = 112.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jun–Aug.
|habitat=Rock outcrops, talus, gravelly areas, tundra
|elevation=0-3300 m
|distribution=Alta.;B.C.;Que.;Yukon;Alaska;Colo.;Idaho;Mont.;Nev.;Utah;Wash.;Wyo.
|discussion=<p>Draba incerta was shown by G. A. Mulligan (1972) to be sexually reproducing and 14-ploid with x = 8. It is often confused with the apomict D. oligosperma (2n = 32, 64). Draba incerta is readily separated from D. oligosperma by having well-formed (versus abortive) anthers and pollen, stalked (versus sessile) leaf trichomes, and ciliate (versus non-ciliate) basal leaves with obscure (versus prominent) midveins. Although both species have leafless scapes, one often finds a bract adnate to, or subtending, the proximalmost pedicel in D. incerta.</p><!--
--><p>Draba incerta is found near sea level in Alaska.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Draba incerta
|author=
|authority=Payson
|rank=species
|parent rank=genus
|synonyms=Draba exalata;Draba incerta var. laevicapsula;Draba incerta var. peasei;Draba laevicapsula;Draba peasei
|basionyms=
|family=Brassicaceae
|phenology=Flowering Jun–Aug.
|habitat=Rock outcrops, talus, gravelly areas, tundra
|elevation=0-3300 m
|distribution=Alta.;B.C.;Que.;Yukon;Alaska;Colo.;Idaho;Mont.;Nev.;Utah;Wash.;Wyo.
|reference=None
|publication title=Amer. J. Bot.
|publication year=1917
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V7/V7_414.xml
|tribe=Brassicaceae tribe Arabideae
|genus=Draba
|species=Draba incerta
}}<!--

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