Teesdalia nudicaulis

(Linnaeus) W. T. Aiton in W. Aiton and W. T. Aiton

in W. Aiton and W. T. Aiton, Hortus Kew. 4: 83. 1812.

Common names: Shepherd’s-cress
WeedyIntroducedIllustrated
Basionym: Iberis nudicaulis Linnaeus Sp. Pl. 2: 650. 1753
Treatment appears in FNA Volume 7. Treatment on page 565.
Revision as of 11:33, 30 July 2020 by imported>Volume Importer
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Stems 0.5–1.5 (–2) dm. Basal leaves: petiole 0.5–2.5 (–3.5) cm; blade oblanceolate to obovate in outline, 0.3–1.5 (–2) cm × 2–4 (–7) mm, margins usually lyrate-pinnatifid, rarely dentate or entire; lateral lobes obtuse. Cauline leaves 0–4; blade linear to oblong. Fruiting pedicels 3–7 mm. Flowers zygomorphic; sepals 0.5–0.8 (–1) × 0.4–0.6 (–0.8) mm; petals oblong to obovate, abaxial pair 1.5–2.5 × 0.6–1 mm, adaxial pair 0.5–1 × 0.3–0.4 mm; stamens 6, tetradynamous; filaments 0.8–1 mm, (basal appendage white, ca. 1/2 its length); anthers 0.1–0.2 mm. Fruits 3–4.5 × 3–4.5 mm; style ca. 0.1 mm. Seeds 1–1.2 × 0.9–1 mm. 2n = 36.


Phenology: Flowering Apr–Jun.
Habitat: Sandy areas along trails, near beaches, pine clearings, waste grounds, fields, roadsides, gravelly slopes
Elevation: 0-300 m

Distribution

V7 911-distribution-map.gif

Introduced; B.C., Calif., Conn., Md., Mass., Mich., N.J., N.Y., N.C., Oreg., Pa., S.C., Va., Wash., Europe, Asia (Middle East), also in South America (Chile), nw Africa, Australia

Discussion

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

... more about "Teesdalia nudicaulis"
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
Ihsan A. Al-Shehbaz +
(Linnaeus) W. T. Aiton in W. Aiton and W. T. Aiton +
Iberis nudicaulis +
appendaged +  and unappendaged +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
not auriculate +
0.3 cm3 mm <br />0.003 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
dentate +, entire +, pinnatisect +  and lyrate-pinnatifid +
dissected +, repand +, sinuate +, crenate +  and dentate +
linear;oblong +
much smaller +  and reduced +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
urceolate +, campanulate +  and tubular +
branched +  and simple +
well-developed +
distinct +
undifferentiated +
not +  and differentiated +
Shepherd’s-cress +
emarginate +  and entire +
B.C. +, Calif. +, Conn. +, Md. +, Mass. +, Mich. +, N.J. +, N.Y. +, N.C. +, Oreg. +, Pa. +, S.C. +, Va. +, Wash. +, Europe +, Asia (Middle East) +, also in South America (Chile) +, nw Africa +  and Australia +
0-300 m +
straight +  and curved +
connate +  and distinct +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
angustiseptate +, keeled +, broadly obcordate +  and suborbicular +
0.3 cm3 mm <br />0.003 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
angustiseptate +
Sandy areas along trails, near beaches, pine clearings, waste grounds, fields, roadsides, gravelly slopes +
sessile +  and petiolate +
alternate +, not +  and rosulate +
cauline +  and basal +
connate +  and distinct +
decurrent +
lobed;dentate +
tenuinucellate +, crassinucellate +  and bitegmic +
campylotropous +  and anatropous +
rudimentary +
oblong +  and obovate +
2.5 cm25 mm <br />0.025 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Flowering Apr–Jun. +
trinucleate +  and 3(-11)-colpate +
in W. Aiton and W. T. Aiton, Hortus Kew. +
slender +
mucilaginous +
not +  and mucilaginous +
white +, black +, brown +  and yellow +
0.1 cm1 mm <br />0.001 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
ovate +  and compressed +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
persistent +  and caducous +
distinct +
ascending +  and spreading +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
reduced +
latiseptate +, schizocarpic +, samaroid +  and lomentaceous +
indehiscent +  and dehiscent +
angustiseptate +, flat +, angled +, terete +, torulose +, not +, segmented +  and nutletlike +
Weedy +, Introduced +  and Illustrated +
tetradynamous +
procumbent +  and decumbent +
ascending +  and erect +
entire +  and capitate +
2-lobed +  and entire +
subsessile +, sessile +  and petiolate +
persistent +
distinct +
0.1 cm1 mm <br />0.001 m <br /> (?) +
Cruciferae +
Teesdalia nudicaulis +
Teesdalia +
species +
scale-like +  and forked +
anastomosing +
pubescent +  and glabrous +
perennial +, biennial +  and annual +
aquatics +  and terrestrial +
glabrous +  and pubescent +