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Pakistan | Family List | Brassicaceae | Braya

Braya thomsonii Hook. f. in Journ. Linn. Soc. Bot. 5: 168. 1861. Schulz in Engl. & Prantl, l.c. 630.

Braya thomsonii

Credit: Shaukat & Azmat

  • Braya alpine*
  • Braya thomsonii var. pilosa Schulz

    Perennial, caespitose herb, 3-8 (-10) cm tall, with glabrous leaves, ± pilose stems with mostly simple hairs. Radical leaves rosulate, narrowly spathulate-oblong to linear-oblong, 15-35 mm long, usually c. 3 mm broad; cauline leaves usually absent, rarely 1, c. 10 mm long, 1 mm broad. Racemes 10-20-flowered, up to 2(-2.5) cm long in fruit. Flowers c. 3 mm across, white; pedicels 5-7 mm long in fruit, erect, subappressed, slightly thickened. Sepals c. 2.5 mm long, Petals c. 4(-4.5) mm long, 1-1.2 mm broad. Stamens c. 2:3 mm long; anthers c. 0.3 mm long. Siliquae 5-8 mm long, 1 mm broad, linear-oblong, with convex valves, subtorulose, glabrous, often outcurved above; style c. 0.5 mm long, slightly thickened with sub-bilobed stigma; septum not or obscurely veined; seeds 8-12, c. 0.7 mm long, ovoid, pale brown.

    Fl. Per.: June-Aug.

    Type: W. Tibet, Piti, 3600-3900 m, Thomson (K).

    Distribution: Endemic to Tibet and Kumaon.

    A little known but distinct species with broader leaves and longer fruits than in Braya alpina Sternb. & Hoppe. Braya pamirica (Korsh.) Fedtsch. (Braya thomsonii var. pamirica (Korsh.) Schulz; Erysimum pamiricum Korsh.) with dense branched hairs and pale yellowish flowers, but closely resembling this species, may also be found in our area.


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