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Pakistan | Family List | Brassicaceae | Sisymbrium

Sisymbrium officinale (Linn.) scop., Fl. Carn. 2: 26. 1772. Hedge in Davis, l.c. 483; in Rech. f., l.c. 318.

Sisymbrium officinale

Credit: Azmat

  • Erysimum officinale Linn.

    Annual, erect, stiffly branched, 20-50 cm tall herb, hairy with simple, rigid, reflexed hairs. Basal leaves rosulate, deeply pinnatisect with ± rounded terminal lobes, stalked, irregularly toothed; cauline leaves smaller with a narrow, often hastate terminal lobe. Racemes branched, each branch 20-30-flowered, elongated in fruit. Flowers small, c. 4 mm across, yellow; pedicels 2-4 mm long, thickened and appressed to the axis, erect. Sepals c. 2.5 mm long. Petals 3-4 mm long, 1 mm broad. Stamens c. 2: 3 mm long; anthers c. 0.5 mm long. Siliquae very short, 10-15 (-17) mm long, c. 1.5 mm broad, conical at the apex, ± hispid (rarely glabrous) ; valves rigid, 3-veined; style c. 0.5 mm long with a short, depressed stigma; septum submembranous, somewhat rigid, pale yellowish or dull whitish; seeds c. 10 in each locule, c. 0.8 mm long, ellipsoid, reddish-brown.

    Fl. Per.: April-June.

    Type: Described from Europe, Herb. Linn. no. 837/1 (LINN).

    Distribution: Most of Europe and Asia, N. Africa; introduced and naturalized widely.

    A very distinct species, introduced and rare in our area.


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