View source for Draba paysonii

{{Treatment/ID
|accepted_name=Draba paysonii
|accepted_authority=J. F. Macbride
|publications={{Treatment/Publication
|title=Contr. Gray Herb.
|place=56: 52. 1918
|year=1918
}}
|basionyms={{Treatment/ID/Basionym
|name=Draba vestita
|authority=Payson
|rank=species
|publication_title=Amer. J. Bot.
|publication_place=4: 261. [May] 1917,
}}
|synonyms=
|hierarchy=Brassicaceae;Brassicaceae tribe Arabideae;Draba;Draba paysonii
|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 paysonii]]</div></div>
|volume=Volume 7
|mention_page=page 286, 287, 306, 312, 323, 328
|treatment_page=page 327
}}<!--

--><span class="statement" id="st-undefined" data-properties="">Perennials; (cespitose, densely pulvinate); caudex branched (covered with persistent leaves, branches creeping, sometimes terminating in sterile rosettes); scapose. <b>Stems</b> unbranched, 0.05–0.3 dm, densely pubescent throughout, trichomes simple, 0.4–1.3 mm, and stalked, 2–5-rayed, stellate, 0.1–0.6 mm. <b>Basal</b> leaves (imbricate); rosulate; sessile; blade linear to linear-oblanceolate, 0.4–1.2 cm × 0.8–1.5 mm, margins entire, (ciliate, trichomes simple and spurred, (0.4–)0.6–1.4 mm), surfaces pubescent, abaxially (dense) with stalked, 2–12-rayed trichomes, 0.1–0.8 mm, adaxially with simple and 2-rayed ones, 0.3–1 mm, (midvein prominent). <b>Cauline</b> leaves 0. <b>Racemes</b> 2–7-flowered, ebracteate, slightly elongated in fruit; rachis not flexuous, pubescent as stem. <b>Fruiting</b> pedicels divaricate-ascending, straight, 3–9 mm, pubescent, trichomes simple (0.4–1.4 mm), and stalked, 2–5-rayed (0.1–0.6 mm). <b>Flowers</b>: sepals oblong, 2.8–3.5 mm, pubescent, (trichomes simple and short-stalked, 2–4-rayed); petals pale yellow, oblanceolate to spatulate, (4–)5–6 × (1.5–)2–3 mm; anthers oblong, 0.5–0.7 mm. <b>Fruits</b> often broadly ovoid to lanceolate, plane, slightly inflated basally, (5–)6–9 × (3–)3.7–5 mm; valves densely pubescent, trichomes simple and 2-rayed, (0.2–)0.4–1 mm, (occasionally with fewer, smaller, 4- or 5-rayed ones); ovules 8–12 per ovary; style (0.6–)0.8–1.2 mm. <b>Seeds</b> oblong, 1.7–2.2 × 1–1.4 mm.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jun–Jul.
|habitat=Limestone rock outcrops, talus, gravelly calcareous soil
|elevation=1800-3500 m
|distribution=Mont.;Wyo.
|discussion=<p><i>Draba paysonii</i> is known from southwestern Montana (Gallatin, Glacier, Madison, and Meagher counties) and northwestern Wyoming (Fremont and Park counties). Reports of its occurrence in Alberta (e.g., G. A. Mulligan 1971b) are based on plants of <i>D. novolympica</i>, a species formerly treated as <i>D. paysonii</i> <i></i>var.<i> treleasei</i>. Features distinguishing these two species are discussed under 70. <i>D. novolympica</i>.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Draba paysonii
|authority=J. F. Macbride
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Draba vestita
|family=Brassicaceae
|phenology=Flowering Jun–Jul.
|habitat=Limestone rock outcrops, talus, gravelly calcareous soil
|elevation=1800-3500 m
|distribution=Mont.;Wyo.
|reference=None
|publication title=Contr. Gray Herb.
|publication year=1918
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V7/V7_445.xml
|tribe=Brassicaceae tribe Arabideae
|genus=Draba
|species=Draba paysonii
}}<!--

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