Sisymbrium officinale

(Linnaeus) Scopoli
Fl. Carniol. ed. 2, 2: 26. 1772.
WeedyIntroduced
Basionym: Erysimum officinale Linnaeus Sp. Pl. 2: 660. 1753
Synonyms: Sisymbrium officinale var. leiocarpum de Candolle
Treatment appears in FNA Volume 7. Treatment on page 670. Mentioned on page 667.

Annuals; glabrous or pubescent. Stems erect, branched distally, 2.5–7.5(–11) dm, usually sparsely to densely hirsute, (trichomes retrorse), rarely glabrate distally. Basal leaves usually rosulate; petiole (1–)2–7(–10) cm; blade broadly oblanceolate or oblong-obovate (in outline), (2–)3–10(–15) cm × (10–)20–50(–80) mm, margins lyrate-pinnatifid, pinnatisect, or runcinate; lobes (2)3 or 4(5) on each side, oblong or lanceolate, smaller than terminal lobe, margins entire, dentate, or lobed, (terminal lobe suborbicular or deltate, margins dentate). Cauline leaves similar to basal; blade with lobe margins dentate or subentire. Fruiting pedicels erect, (appressed to rachis), stout, narrower than fruit, 1.5–3(–4) mm. Flowers: sepals erect, oblong-ovate, 2–2.5 × ca. 1 mm; petals spatulate, 2.5–4 × 1–2 mm, claw 1–2 mm; filaments (erect, yellowish), 2–3 mm; anthers ovate, 0.3–0.5 mm. Fruits (erect), subulate-linear, straight, slightly torulose or smooth, stout, (0.7–)1–1.4(–1.8) cm × 1–1.5 mm; valves glabrous or pubescent; ovules 10–20 per ovary; style (0.8–)1–1.5(–2) mm; stigma slightly 2-lobed. Seeds 1–1.3 × 0.5–0.6 mm. 2n = 14.


Phenology: Flowering Apr-late Sep.
Habitat: Roadsides, fields, pastures, waste grounds, deserts
Elevation: 0-2200 m

Distribution

V7 1150-distribution-map.gif

Introduced; Alta., B.C., Man., N.B., Nfld. and Labr. (Nfld.), N.W.T., N.S., Ont., P.E.I., Que., Yukon, Ala., Alaska, Ark., Calif., Conn., Del., Fla., Ga., Idaho, Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Mont., N.H., N.J., N.Mex., N.Y., N.C., Ohio, Okla., Oreg., Pa., R.I., S.C., S.Dak., Tenn., Tex., Utah, Vt., Va., Wash., W.Va., Wis., Europe, Asia, n Africa, introduced also in Central America, South America, Australia.

Discussion

Selected References

None.

Lower Taxa

None.

... more about "Sisymbrium officinale"
Ihsan A. Al-Shehbaz +
(Linnaeus) Scopoli +
Erysimum officinale +
Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. (Nfld.) +, N.W.T. +, N.S. +, Ont. +, P.E.I. +, Que. +, Yukon +, Ala. +, Alaska +, Ark. +, Calif. +, Conn. +, Del. +, Fla. +, Ga. +, Idaho +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Miss. +, Mo. +, Mont. +, N.H. +, N.J. +, N.Mex. +, N.Y. +, N.C. +, Ohio +, Okla. +, Oreg. +, Pa. +, R.I. +, S.C. +, S.Dak. +, Tenn. +, Tex. +, Utah +, Vt. +, Va. +, Wash. +, W.Va. +, Wis. +, Europe +, Asia +, n Africa +, introduced also in Central America +, South America +  and Australia. +
0-2200 m +
Roadsides, fields, pastures, waste grounds, deserts +
Flowering Apr-late Sep. +
Fl. Carniol. ed. +
Weedy +  and Introduced +
Sisymbrium officinale var. leiocarpum +
Sisymbrium officinale +
Sisymbrium +
species +