Difference between revisions of "Calepina irregularis"
in H. Schinz and R. Keller, Fl. Schweiz ed. 2, 1: 218. 1905.
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|accepted_name=Calepina irregularis | |accepted_name=Calepina irregularis | ||
| − | |accepted_authority=(Asso) Thellung | + | |accepted_authority=(Asso) Thellung |
|publications={{Treatment/Publication | |publications={{Treatment/Publication | ||
|title=in H. Schinz and R. Keller, Fl. Schweiz ed. | |title=in H. Schinz and R. Keller, Fl. Schweiz ed. | ||
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name=Calepina irregularis | name=Calepina irregularis | ||
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|rank=species | |rank=species | ||
|parent rank=genus | |parent rank=genus | ||
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|publication year=1905 | |publication year=1905 | ||
|special status=Introduced;Illustrated | |special status=Introduced;Illustrated | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V7/V7_675.xml |
|tribe=Brassicaceae tribe Calepineae | |tribe=Brassicaceae tribe Calepineae | ||
|genus=Calepina | |genus=Calepina | ||
Latest revision as of 23:35, 5 November 2020
Stems several from base, (1–)2–8 dm, unbranched or branched distally. Basal leaves early rosulate; petiole (0.2–)1–3.5(–6) cm; blade obovate, spatulate, or oblanceolate, (0.8–)2–5(–9) cm × (3–)10–30 mm, base attenuate. Cauline leaves: blade oblong to lanceolate, (1–)2–7(–8) cm × (4–)10–20(–30) mm, base sagittate or amplexicaul, apex obtuse to acute. Racemes with straight rachis. Fruiting pedicels straight or curved upward, (3–)5–10(–13) mm. Flowers: sepals oblong or ovate, 1.2–2 × 0.5–1 mm; petals (1.5–)2–3 × 0.5–1.5 mm, unequal, abaxial pair larger than adaxial (longer than sepals); filaments 1–1.5 mm; anthers ca. 0.3 mm; gynophore 0.1–0.2 mm. Fruits 2.5–3.5(–4) × 2–3 mm, abruptly tapering to a conical, beaklike apex, 0.5–0.8 mm. Seeds brown, 1.3–1.6 mm. 2n = 14, 28.
Phenology: Flowering Mar–May.
Habitat: Fields, waste places, roadsides
Elevation: 0-200 m
Distribution
Introduced; Md., N.C., Va., Europe, c, sw Asia, n Africa.
Discussion
The fruits of Calepina irregularis and Neslia apiculata are remarkably similar; the two can easily be separated by the presence of white instead of yellow petals and by the absence of indumentum in Calepina.
Selected References
None.