View source for Draba jaegeri

{{Treatment/ID
|accepted_name=Draba jaegeri
|accepted_authority=Munz & I. M. Johnston
|publications={{Treatment/Publication
|title=Bull. Torrey Bot. Club
|place=56: 164. 1929
|year=1929
}}
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}{{Treatment/ID/Special_status
|code=C
|label=Conservation concern
}}
|basionyms=
|synonyms=
|hierarchy=Brassicaceae;Brassicaceae tribe Arabideae;Draba;Draba jaegeri
|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 jaegeri]]</div></div>
|volume=Volume 7
|mention_page=page 288, 312
|treatment_page=page 314
}}<!--

--><span class="statement" id="st-undefined" data-properties="">Perennials; (densely cespitose); caudex branched (densely covered with persistent leaves, branches sometimes terminating in sterile rosettes); scapose. <b>Stems</b> unbranched, (0.05–)0.15–0.5(–0.6) dm, hirsute throughout, trichomes simple, 0.1–0.8 mm, and 2–4-rayed, 0.0.5–0.4 mm. <b>Basal</b> leaves (densely imbricate); rosulate; sessile; blade oblanceolate to ovate, 0.4–1.5 cm × 1.5–3.5 mm, margins entire, (ciliate, trichomes simple, 0.3–1.1 mm), surfaces pubescent abaxially with stalked, (2–)4–6-rayed trichomes, 0.1–5 mm, (midvein obscure), adaxially glabrous proximally, sparsely pubescent distally with mostly simple trichomes. <b>Cauline</b> leaves 0. <b>Racemes</b> 3–12(–18)-flowered, ebracteate, slightly elongated in fruit; rachis not flexuous, hirsute as stem. <b>Fruiting</b> pedicels ascending, straight, 2–6(–8) mm, hirsute as stem. <b>Flowers</b>: sepals oblong, 2.5–3 mm, hirsute, (trichomes simple and stalked, 2–4-rayed); petals white, spatulate, 4.5–6 × 1.5–2 mm; anthers oblong, 0.8–1 mm. <b>Fruits</b> ovate to elliptic, plane, slightly flattened, 4–8(–11) × 2.5–4.5 mm; valves pubescent, trichomes stalked (2–)4-rayed, 0.05–0.5 mm; ovules 8–16 per ovary; style (1.2–)2–4(–4.5) mm. <b>Seeds</b> oblong, 1.4–2 × 0.9–1 mm. <b>2n</b> = 54.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jun–Aug.
|habitat=Limestone outcrops and gravelly soil
|elevation=2900-3600 m
|distribution=Nev.
|discussion=<p>Of conservation concern.</p><!--
--><p><i>Draba jaegeri</i> is superficially similar to <i>D. hitchcockii</i>, a narrow endemic of the Lost River Range in central Idaho. Both species are cespitose perennials with relatively large, white flowers, and a chromosome number (2n = 54) otherwise unknown in <i>Draba</i> (M. D. Windham 2004). <i>Draba jaegeri</i> is readily distinguished from <i>D. hitchcockii</i> by having fruits pubescent with (2–)4-rayed trichomes, styles (1.2–)2–4(–4.5) mm, fruiting pedicels 2–6(–8) mm, and spatulate petals 1.5–2 mm wide. By contrast, <i>D. hitchcockii</i> has fruits pubescent with mostly simple and 2-rayed trichomes (with 3- or 4-rayed ones), styles (0.8–)1–1.7(–2) mm, fruiting pedicels (2–)4–13(–18) mm, and obovate petals 2–3.5 mm wide. <i>Draba jaegeri</i> is known only from the Charleston Mountains in Clark County.</p>
|tables=
|references=
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-->{{#Taxon:
name=Draba jaegeri
|authority=Munz & I. M. Johnston
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Brassicaceae
|phenology=Flowering Jun–Aug.
|habitat=Limestone outcrops and gravelly soil
|elevation=2900-3600 m
|distribution=Nev.
|reference=None
|publication title=Bull. Torrey Bot. Club
|publication year=1929
|special status=Endemic;Conservation concern
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V7/V7_417.xml
|tribe=Brassicaceae tribe Arabideae
|genus=Draba
|species=Draba jaegeri
}}<!--

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