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Pakistan | Family List | Brassicaceae | Sisymbrium

Sisymbrium heteromallum C.A. Mey. in Ledeb., Fl. Alt. 3: 132. 1831. Schulz in Engl. & Prantl, l.c. 597; Vas. in Kom., l.c. 43.

Sisymbrium heteromallum
Illustration

Credit: Azmat

  • Sisymbrium dahuricum Turcz.

    Annual or biennial, 30-90 cm tall, erect, branched above,± hispid below with simple ciliate hairs, sometimes subglabrous. Leaves resembling closely with the previous species but terminal lobe much longer and broader than the lateral, 2-3 pairs of lobes, shortly toothed, stalked. Racemes 30-45-flowered, up to 25 cm long in fruit; young fruits conspicuously overtopping the flowers. Flowers very small, c. 3 mm across, pale yellow; pedicels 7-15 mm long in fruit, not thickened, spreading. Sepals 3-4 mm long. Petals 4-5 mm long, 1-1.5 mm broad. Stamens c. 3: 4 mm long; anthers c. 1 mm long. Siliquae linear-subcylindrical, 60-80 mm long, 1 mm broad, glabrous; valves covex, 3-veined; style inconspicuous, c. 0.5 mm long with depressed capitate stigma; seeds many, c. 1 mm long, oblong-ellipsoid, finely granulated.

    Fl. Per. April-June.

    Type: Altai, Tschrysch, Meyer (LE).

    Distribution: C. Asia, Himalayas and Pakistan.

    Small flowers, elongated fruits and leaves with large terminal lobes and smaller much narrower lateral lobes are distinctive characters.


     

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