Difference between revisions of "Draba simmonsii"
Novon 18: 326. 2008.
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|year=2008 | |year=2008 | ||
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− | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Draba alpina var. gracilescens | |name=Draba alpina var. gracilescens | ||
|authority=Simmons | |authority=Simmons | ||
+ | |rank=variety | ||
+ | |publication_title=Vasc. Pl. Ellesmereland, | ||
+ | |publication_place=83, plate 6, figs. 1–3. 1906 | ||
}} | }} | ||
|synonyms= | |synonyms= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Draba simmonsii | name=Draba simmonsii | ||
− | |||
|authority=Elven & Al-Shehbaz | |authority=Elven & Al-Shehbaz | ||
|rank=species | |rank=species | ||
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|publication year=2008 | |publication year=2008 | ||
|special status= | |special status= | ||
− | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V7/V7_467.xml |
|tribe=Brassicaceae tribe Arabideae | |tribe=Brassicaceae tribe Arabideae | ||
|genus=Draba | |genus=Draba |
Latest revision as of 22:33, 5 November 2020
Perennials; caudex branched (with persistent leaf bases and petioles); scapose. Stems unbranched, (0.15–)0.3–1.1(–1.3) dm, often pubescent throughout, sometimes sparsely pubescent distally, trichomes stalked, 2–4-rayed, and fewer, simple ones, 0.1–0.3(–0.6) mm. Basal leaves (not imbricate); rosulate; petiolate; petiole (base somewhat thickened), margin ciliate, (trichomes simple, 0.5–1 mm); blade oblong to oblong-lanceolate, 0.5–1.6 cm × 2–5 mm, margins entire (apex subacute to obtuse), surfaces pubescent throughout or glabrous adaxially, with simple and stalked, 2–4(–6)-rayed, stellate to subdendritic trichomes. Cauline leaves 0. Racemes (2–)4–10(–14)-flowered, ebracteate, slightly elongated in fruit; rachis not flexuous (straight), pubescent as stem. Fruiting pedicels divaricate, straight, 2.5–10 mm, pubescent as stem. Flowers: sepals (purplish green), oblong, (2.5–)2.8–3.5(–3.8) mm, pubescent, (trichomes simple and sometimes short-stalked, 2-rayed); petals pale yellow, narrowly obovate, (sides non-parallel), (3.5–)3.8–5.5(–5.8) × (2.5–)2.8–4(–4.6) mm, (emarginate); anthers ovate, ca. 0.5 mm. Fruits lanceolate, plane, slightly flattened, 5.5–9(–11) × 2.3–3.8 mm; valves pubescent, trichomes simple, sometimes with fewer, 2-rayed ones, 0.1–0.3 mm; ovules 16–24(–28) per ovary; style 0.1–0.3 mm (stigma as wide as style). Seeds (dark brown), oblong-ovate, 1–1.3 × 0.7–0.8 mm.
Phenology: Flowering late Jun–Jul.
Habitat: Dry open ground, open patches in meadows or heath vegetation, outwash plains
Elevation: 0-100 m
Distribution
N.W.T., Nunavut.
Discussion
Selected References
None.