Capsella bursa-pastoris

(Linnaeus) Medikus

Pfl.-Gatt., 85. 1792.

WeedyIntroducedIllustrated
Basionym: Thlaspi bursa-pastoris Linnaeus Sp. Pl. 2: 647. 1753
Treatment appears in FNA Volume 7. Treatment on page 454.

Plants mostly sparsely to densely pubescent, trichomes sessile, 3–5-rayed, stellate (base of plant often mixed with much longer, simple ones). Stems (0.2–) 1–5 (–7) dm. Basal leaves: petiole 0.5–4 (–6) cm; blade oblong or oblanceolate, (0.5–) 1.5–10 (–15) cm × 2–25 (–50) mm, base cuneate or attenuate, apex acute or acuminate. Cauline leaves: blade narrowly oblong, lanceolate, or linear, 1–5.5 (–8) cm × 1–15 (–20) mm, base sagittate, amplexicaul, or, rarely, auriculate. Fruiting pedicels usually straight, (0.3–) 0.5–1.5 (–2) cm, glabrous. Flowers: sepals green or reddish, 1.5–2 × 0.7–1 mm (margins membranous); petals (1.5–) 2–4 (–5) × 1–1.5 mm; filaments 1–2 mm; anthers to 0.5 mm. Fruits (0.3–) 0.4–0.9 (–1) cm × (2–) 3–7 (–9) mm, base cuneate, apex emarginate or truncate; valves each with subparallel lateral-veins; style 0.2–0.7 mm. Seeds brown, 0.9–1.1 × 0.4–0.6 mm. 2n = 32.


Phenology: Flowering and fruiting Jan–Oct.
Habitat: Roadsides, gardens, fields, barren gravel, pastures, plantations, lawns, orchards, cultivated ground, waste areas, vineyards, mountain slopes
Elevation: 0-2800 m

Distribution

V7 692-distribution-map.gif

Introduced; Greenland, Alta., B.C., Man., N.B., Nfld. and Labr., N.W.T., N.S., Nunavut, Ont., Que., Sask., Yukon, Ala., Alaska, Ariz., Ark., Calif., Colo., Conn., Del., D.C., Fla., Ga., Idaho, Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Mont., Nebr., Nev., N.H., N.J., N.Mex., N.Y., N.C., N.Dak., Ohio, Okla., Oreg., Pa., R.I., S.C., S.Dak., Tenn., Tex., Utah, Vt., Va., Wash., W.Va., Wis., Wyo., Europe, Asia, n Africa, also in Mexico, West Indies, Central America, South America, Atlantic Islands, Pacific Islands, Australia

Discussion

According to M. Coquillat (1951), Capsella bursa-pastoris is the second most common weed on earth, after Polygonum aviculare.

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 "Capsella bursa-pastoris"
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
truncate +  and emarginate +
Acuminate (?) +  and Acute (?) +
Ihsan A. Al-Shehbaz +
(Linnaeus) Medikus +
straight +
cuneate +, auriculate +, sagittate +  and attenuate +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Thlaspi bursa-pastoris +
appendaged +  and unappendaged +
5.5 cm55 mm <br />0.055 m <br /> (8 cm80 mm <br />0.08 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1 cm10 mm <br />0.01 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
repand +, dentate +, runcinate +, lyrate +  and lobed +
linear;lanceolate;linear;lanceolate;oblong;oblanceolate;oblong +
much smaller +  and reduced +
1mm;15mm +
urceolate +, campanulate +  and tubular +
branched +  and simple +
subsessile +, petiolate +  and sessile +
well-developed +
distinct +
differentiated +
emarginate +  and entire +
incumbent +  and accumbent +
Greenland +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. +, N.W.T. +, N.S. +, Nunavut +, Ont. +, Que. +, Sask. +, Yukon +, Ala. +, Alaska +, Ariz. +, Ark. +, Calif. +, Colo. +, Conn. +, Del. +, D.C. +, Fla. +, Ga. +, Idaho +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Miss. +, Mo. +, Mont. +, Nebr. +, Nev. +, N.H. +, N.J. +, N.Mex. +, N.Y. +, N.C. +, N.Dak. +, Ohio +, Okla. +, Oreg. +, Pa. +, R.I. +, S.C. +, S.Dak. +, Tenn. +, Tex. +, Utah +, Vt. +, Va. +, Wash. +, W.Va. +, Wis. +, Wyo. +, Europe +, Asia +, n Africa +, also in Mexico +, West Indies +, Central America +, South America +, Atlantic Islands +, Pacific Islands +  and Australia +
0-2800 m +
straight +  and curved +
not winged +  and unappendaged +
connate +  and distinct +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
actinomorphic +
2-valved +  and capsular +
0.9 cm9 mm <br />0.009 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
0.4cm;0.9cm +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
angustiseptate +, keeled +, flattened +, obdeltoid +  and obdeltoid-obcordiform +
latiseptate +  and unsegmented +
indehiscent +  and dehiscent +
angustiseptate +  and terete +
Roadsides, gardens, fields, barren gravel, pastures, plantations, lawns, orchards, cultivated ground, waste areas, vineyards, mountain slopes +
sessile +  and petiolate +
alternate +, not +  and rosulate +
cauline +  and basal +
connate +  and distinct +
decurrent +
sinuate;dentate;sinuate;dentate +
tenuinucellate +, crassinucellate +  and bitegmic +
campylotropous +  and anatropous +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Pink (?) +  and White (?) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
rudimentary +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Flowering and fruiting Jan–Oct. +
trinucleate +  and 3(-11)-colpate +
Pfl.-Gatt., +
elongated +
slender +
mucilaginous +
uniseriate +  and biseriate +
not +  and mucilaginous +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
reddish +  and green +
persistent +  and caducous +
distinct +
ascending +  and erect +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.1 cm1 mm <br />0.001 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 +
branched +  and unbranched +
procumbent +  and decumbent +
ascending +  and erect +
2-lobed +, entire +, conical +  and capitate +
subsessile +, sessile +  and petiolate +
persistent +
distinct +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
Bursa +  and Solmsiella +
Capsella bursa-pastoris +
Capsella +
species +
anastomosing +
biennial +  and annual +
rhizomatous +, taprooted +, scapose +  and not +
perennial +, biennial +  and annual +
aquatics +  and terrestrial +