Calepina irregularis

(Asso) Thellung in H. Schinz and R. Keller

in H. Schinz and R. Keller, Fl. Schweiz ed. 2, 1: 218. 1905.

IntroducedIllustrated
Basionyms: Myagrum irregulare Asso Syn. Stirp. Aragon., 82. 1779
Synonyms: Calepina corvini (Allioni) Desvaux Crambe corvini Allioni
Treatment appears in FNA Volume 7. Treatment on page 446.

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

V7 675-distribution-map.gif

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.

Lower Taxa

None.

"elongated" is not a number."thick" is not a number."dm" is not declared as a valid unit of measurement for this property.

... more about "Calepina irregularis"
0.3 cm3 mm <br />0.003 m <br /> (?) +
Beaklike (?) +, Conical (?) +, Obtuse (?) +  and Acute (?) +
Ihsan A. Al-Shehbaz +
(Asso) Thellung in H. Schinz and R. Keller +
amplexicaul +, sagittate +  and attenuate +
Myagrum irregulare +
appendaged +  and unappendaged +
7 cm70 mm <br />0.07 m <br /> (8 cm80 mm <br />0.08 m <br />) +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
2 cm20 mm <br />0.02 m <br /> (7 cm70 mm <br />0.07 m <br />) +
dentate +  and lyrate-pinnatifid +
dissected +, repand +, sinuate +, crenate +  and dentate +
oblong;lanceolate +
much smaller +  and reduced +
10mm;20mm +
urceolate +, campanulate +  and tubular +
branched +  and simple +
well-developed +
distinct +
not +  and differentiated +
emarginate +  and entire +
subconduplicate +
Md. +, N.C. +, Va. +, Europe +, c +, sw Asia +  and n Africa +
0-200 m +
straight +  and curved +
not winged +  and unappendaged +
connate +  and distinct +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
actinomorphic +
stipitate +  and subsessile +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
2.5mm;3.5mm +
tapering +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
latiseptate +  and unsegmented +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
Fields, waste places, roadsides +
sessile +  and petiolate +
alternate +, not +  and rosulate +
cauline +  and basal +
connate +  and distinct +
decurrent +
emarginate to 2-fid +  and entire +
subentire;dentate +
intrastaminal +  and lateral +
tenuinucellate +, crassinucellate +  and bitegmic +
campylotropous +  and anatropous +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
rudimentary +
unequal +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
3.5 cm35 mm <br />0.035 m <br /> (6 cm60 mm <br />0.06 m <br />) +
1 cm10 mm <br />0.01 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Flowering Mar–May. +
trinucleate +  and 3(-11)-colpate +
in H. Schinz and R. Keller, Fl. Schweiz ed. +
1 cm10 mm <br />0.01 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
curved +  and straight +
elongated +
slender +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
mucilaginous +
not +  and mucilaginous +
1.3mm +  and 1.6mm +
persistent +  and caducous +
distinct +
ascending +  and spreading +
ovate +  and oblong +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
perforated +  and complete +
reduced +
latiseptate +, schizocarpic +, samaroid +  and lomentaceous +
indehiscent +  and dehiscent +
angustiseptate +, flat +, angled +, terete +, torulose +, not +, segmented +  and nutletlike +
Introduced +  and Illustrated +
tetradynamous +
branched +  and unbranched +
procumbent +  and decumbent +
erect +  and ascending +
2-lobed +, entire +, conical +  and capitate +
subsessile +, sessile +  and petiolate +
persistent +
Calepina corvini +  and Crambe corvini +
Calepina irregularis +
Calepina +
species +
eglandular +, peltate +, malpighiaceous +, dendritic +, sessile +, stalked +, simple +  and unicellular +
scale-like +  and forked +
coiled +, 1-7-veined +  and veined +
pubescent +  and glabrous +
anastomosing +
biennial +  and annual +
perennial +, biennial +  and annual +
aquatics +  and terrestrial +
glabrous +  and pubescent +