Barbarea orthoceras

Ledebour

Index Seminum (Dorpat) 2. 1824.

Illustrated
Synonyms: Barbarea americana Rydberg Barbarea orthoceras var. dolichocarpa Fernald Campe orthoceras
Treatment appears in FNA Volume 7. Treatment on page 462. Mentioned on page 460, 461.

Biennials or perennials; usually glabrous, except blade auricles often ciliate. Stems (1–) 2–6 (–10) dm. Basal leaves: petiole (0.5–) 1–7 (–15) cm, (rarely ciliate basally); blade usually lyrate-pinnatifid, (1–) 1.5–6 (–11) cm, lobes (0, 1, or) 2–4 (or 5) on each side, lateral lobes oblong or ovate, 0.2–1 cm × 1–5 mm, not fleshy, margins entire, terminal lobe 1.5–5 cm × 10–25 mm. Cauline leaves: blade usually lyrate-pinnatifid (sometimes undivided and margins coarsely toothed or subentire), lateral lobes 1–4, (usually oblong or ovate, rarely lanceolate, to 2 × 1 cm), margins entire, (terminal lobe to 5 × 3 cm, margins usually entire or repand, rarely dentate); conspicuously auriculate, auricles ovate or narrowly oblong, (to 8 × 5 mm, margins entire). Fruiting pedicels erect or ascending, (2–) 3–6 (–7) mm, terete or subquadrangular, stout, (narrower than fruit). Flowers: sepals 2.5–3.5 × 1–1.5 mm, lateral pair slightly saccate basally, margins scarious, (subapically sparsely pubescent or glabrous); petals yellow or pale-yellow, oblanceolate, 5–7 (–8) × (1.5–) 2–3 mm, base attenuate, apex rounded; filaments 3–4.5 mm; anthers 1 mm; ovules (24–) 26–36 per ovary; gynophore to 0.5 mm. Fruits erect to erect-ascending, rarely appressed to rachis, torulose, terete to subquadrangular, (2.5–) 3.1–4 (–4.5) cm × 1.5–2 mm; style stout, 0.5–1.2 (–2) mm. Seeds brown, somewhat plump, ovoid or oblong, 1.2–1.5 × 0.9–1 mm. 2n = 16.


Phenology: Flowering Mar–Jul.
Habitat: Open grassland, sandbars, scree, alpine meadows, ledges, rocky cliffs, forests, streamsides, railroad embankment, boggy ground, gravel pits, moist grassy slopes
Elevation: 0-3400 m

Distribution

V7 707-distribution-map.gif

Alta., B.C., Man., N.B., Nfld. and Labr., N.W.T., Ont., Que., Sask., Yukon, Alaska, Ariz., Calif., Colo., Idaho, Maine, Mich., Minn., Mont., Nev., N.H., N.Mex., Oreg., S.Dak., Utah, Wash., Wyo., e, c Asia

Discussion

M. L. Fernald (1909) reported the southwestern Asian Barbarea plantaginea de Candolle from Alaska, but it is certain that his records were based on plants of B. orthoceras, which is rather rare in New England, where it appears to be restricted to portions of northern Maine and New Hampshire.

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 "Barbarea orthoceras"
1 cm10 mm <br />0.01 m <br /> (?) +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
ascending +  and erect +
subquadrangular +, terete +, oblong +  and ovate +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Ihsan A. Al-Shehbaz +
Ledebour +
not +  and rosulate +
attenuate +
appendaged +  and unappendaged +
6 cm60 mm <br />0.06 m <br /> (11 cm110 mm <br />0.11 m <br />) +
lobed +, dentate +, repand +, crenate +  and entire +
much smaller +  and reduced +
1.5 cm15 mm <br />0.015 m <br /> (6 cm60 mm <br />0.06 m <br />) +
urceolate +, campanulate +  and tubular +
branched +  and simple +
well-developed +
distinct +
differentiated +
emarginate +  and entire +
Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. +, N.W.T. +, Ont. +, Que. +, Sask. +, Yukon +, Alaska +, Ariz. +, Calif. +, Colo. +, Idaho +, Maine +, Mich. +, Minn. +, Mont. +, Nev. +, N.H. +, N.Mex. +, Oreg. +, S.Dak. +, Utah +, Wash. +, Wyo. +, e +  and c Asia +
0-3400 m +
straight +  and curved +
not winged +  and unappendaged +
connate +  and distinct +
0.3 cm3 mm <br />0.003 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
actinomorphic +
not basally +  and saccate +
Dilated (?) +  and Oblong (?) +
latiseptate +  and unsegmented +
4 cm40 mm <br />0.04 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
3.1cm;4cm +
erect +  and erect-ascending +
terete +  and subquadrangular +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
latiseptate +, stipitate +  and sessile +
4-angled +, terete +  and torulose +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Open grassland, sandbars, scree, alpine meadows, ledges, rocky cliffs, forests, streamsides, railroad embankment, boggy ground, gravel pits, moist grassy slopes +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
sessile +  and petiolate +
alternate +, not +  and rosulate +
cauline +  and basal +
connate +  and distinct +
decurrent +
pinnatifid +
median +  and lateral +
toothlike +  and annular +
tenuinucellate +, crassinucellate +  and bitegmic +
campylotropous +  and anatropous +
0.7 cm7 mm <br />0.007 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
rudimentary +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
7 cm70 mm <br />0.07 m <br /> (15 cm150 mm <br />0.15 m <br />) +
1 cm10 mm <br />0.01 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Flowering Mar–Jul. +
trinucleate +  and 3(-11)-colpate +
Index Seminum (Dorpat) +
elongated +
stout +  and slender +
mucilaginous +
uniseriate +  and biseriate +
not +  and mucilaginous +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
oblong +  and ovoid +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
persistent +  and caducous +
distinct +
erect +  and spreading or ascending +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
reduced +
latiseptate +  and unsegmented +
angustiseptate +, 4-angled +  and terete +
latiseptate +  and unsegmented +
angustiseptate +, 4-angled +  and terete +
Illustrated +
tetradynamous +
procumbent +  and decumbent +
2-lobed +, entire +, conical +  and capitate +
subsessile +, sessile +  and petiolate +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
persistent +
distinct +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
Barbarea americana +, Barbarea orthoceras var. dolichocarpa +  and Campe orthoceras +
Barbarea orthoceras +
Barbarea +
species +
1.5 cm15 mm <br />0.015 m <br /> (5 cm50 mm <br />0.05 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
scale-like +  and forked +
coiled +, 1-7-veined +  and veined +
pubescent +  and glabrous +
anastomosing +
perennial +  and biennial +
rhizomatous +, taprooted +, scapose +  and not +
perennial +, biennial +  and annual +
subshrub +  and herb +
aquatics +  and terrestrial +
glabrous +  and pubescent +