Difference between revisions of "Draba nemorosa"
Sp. Pl. 2: 643. 1753.
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|name=Draba dictyota | |name=Draba dictyota | ||
|authority=Greene | |authority=Greene | ||
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|name=Draba nemoralis | |name=Draba nemoralis | ||
|authority=Ehrhart | |authority=Ehrhart | ||
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|name=Draba nemorosa var. brevisilicula | |name=Draba nemorosa var. brevisilicula | ||
|authority=Zapa ł owicz | |authority=Zapa ł owicz | ||
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|name=Draba nemorosa var. hebecarpa | |name=Draba nemorosa var. hebecarpa | ||
|authority=Lindblom | |authority=Lindblom | ||
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|name=Draba nemorosa var. leiocarpa | |name=Draba nemorosa var. leiocarpa | ||
|authority=Lindblom | |authority=Lindblom | ||
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|name=Tomostima nemorosa | |name=Tomostima nemorosa | ||
|authority=unknown | |authority=unknown | ||
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|publication year=1753 | |publication year=1753 | ||
|special status= | |special status= | ||
− | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V7/V7_433.xml |
|tribe=Brassicaceae tribe Arabideae | |tribe=Brassicaceae tribe Arabideae | ||
|genus=Draba | |genus=Draba |
Revision as of 18:57, 18 September 2019
Annuals; not scapose. Stems unbranched or branched proximally, (0.3–)0.6–4.5(–6) dm, densely pubescent proximally, glabrous distally, trichomes simple, 0.5–1.3 mm, and stalked, 2–4-rayed, 0.1–0.5 mm. Basal leaves rosulate or not, petiolate; petiole ciliate throughout; blade oblong-obovate or oblanceolate, (0.4–)1–3.5(–5) cm × (2–)5–15(–20) mm, margins usually dentate to denticulate, rarely subentire, surfaces sparsely to densely pubescent with stalked, 2- or 3-rayed, and cruciform trichomes, 0.1–0.5 mm. Cauline leaves 4–12(–15); sessile; blade broadly ovate to oblong, margins dentate or denticulate, surfaces pubescent, abaxially as basal, adaxially with primarily simple, and 2- or 3-rayed trichomes. Racemes (10–)18–60(–92)-flowered, ebracteate, considerably elongated in fruit; rachis not flexuous (straight), glabrous. Fruiting pedicels divaricate, straight, 7–28(–35) mm [(1.5–)2–7 times longer than fruit], glabrous. Flowers: sepals ovate, (0.7–)0.9–1.6 mm, sparsely pubescent, (trichomes simple); petals yellow, spatulate to oblanceolate, (1.2–)1.7–2.2(–2.5) × (0.4–)0.6–1 mm, (deeply notched); anthers broadly ovate to subreniform, 0.1–0.2 mm. Fruits oblong to elliptic or, rarely, oblong-oblanceolate, plane, slightly flattened, (3–)5–8 (–10) × 1.5–2.5 mm; valves glabrous or puberulent, trichomes simple, antrorse, 0.05–0.2 mm; ovules (30–)36–60(–72) per ovary; style 0.01–0.1 mm. Seeds ovoid, 0.5–0.7(–0.8) × 0.3–0.4(–0.5) mm. 2n = 16.
Phenology: Flowering Apr–Jul.
Habitat: Rock outcrops, open wooded slopes, meadows and prairies, stream banks, roadsides, disturbed gravelly grounds, waste places
Elevation: 0-2700 m
Distribution
![V7 433-distribution-map.gif](/w/images/0/06/V7_433-distribution-map.gif)
Alta., B.C., Man., N.W.T., Nunavut, Ont., Que., Sask., Yukon, Alaska, Calif., Colo., Idaho, Iowa, Mich., Minn., Mont., Nebr., Nev., N.Dak., Oreg., S.Dak., Utah, Wash., Wis., Wyo., Europe, Asia, introduced also in Australia.
Discussion
Selected References
None.