Difference between revisions of "Orychophragmus violaceus"
Bot. Jahrb. Syst. 54(Beibl. 119): 56. 1916.
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|name=Brassica violacea | |name=Brassica violacea | ||
|authority=Linnaeus | |authority=Linnaeus | ||
| + | |rank=species | ||
|publication_title=Sp. Pl. | |publication_title=Sp. Pl. | ||
|publication_place=2: 667. 1753 | |publication_place=2: 667. 1753 | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Orychophragmus violaceus | name=Orychophragmus violaceus | ||
| − | |||
|authority=(Linnaeus) O. E. Schulz | |authority=(Linnaeus) O. E. Schulz | ||
|rank=species | |rank=species | ||
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|publication year=1916 | |publication year=1916 | ||
|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/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V7/V7_660.xml |
|tribe=Brassicaceae tribe Brassiceae | |tribe=Brassicaceae tribe Brassiceae | ||
|genus=Orychophragmus | |genus=Orychophragmus | ||
Revision as of 22:18, 16 December 2019
Stems (0.6–)1.5–6(–9) dm, often branched distally, glabrous or sparsely to densely pilose. Basal leaves: petiole (1–)2–8(–11) cm; blade or terminal lobe cordate, reniform, broadly ovate, or suborbicular, (0.4–)1.5–10(–14) cm × (3–)10–40(–70) mm, base usually cordate, rarely obtuse, margins coarsely crenate with teeth ending in apiculae, apex acute or obtuse; lobes (0 or) 1–6 each side, sessile or petiolulate (to 3 × 2 cm), glabrous or pilose. Cauline leaves sessile or petiolate; (distal) blade (0.5–)2–9(–15) cm × (2–)10–60(–90) mm, base sometimes auriculate or amplexicaul, margins dentate or entire, apex acute or acuminate (auricles to 3 × 4 cm); lobes (0 or) 1–4 each side, sessile or petiolulate, glabrous or pilose. Fruiting pedicels (0.6–)0.8–2(–3) cm, narrower than fruit, glabrous or pilose. Flowers: sepals connivent, (6–)8–13(–16) × 1.5–2.5 mm; petals (12–)16–25(–32) × (4–)5–9(–11) mm; filaments 8–18 mm; anthers (3–)4–6(–8) mm. Fruits (3–)4.5–11(–13) cm × 1.5–3 mm; style (0.3–)0.7–3(–5.5) cm; stigma slightly to distinctly 2-lobed. Seeds 2–3(–3.5) × 1–2 mm. 2n = 24.
Phenology: Flowering Mar–Jun.
Habitat: Railroad tracks
Distribution
Va., Asia (China, Japan, Korea).
Discussion
This is the first report of Orychophragmus violaceus as naturalized in North America, though I have seen the plant cultivated as an ornamental in multiple places. The record is based on Wright 3145 (GH), a collection made on 12 May 1987 in the woods along Southern Railroad tracks in Richmond, Virginia; it is the very same collection on which R. C. Rollins (1993) based his record of Moricandia arvensis (Linnaeus) de Candolle for North America. The species appears to be spreading in other locations in the neighboring areas (Rollins).
Selected References
None.