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Pakistan | Family List | Brassicaceae | Draba

7. Draba affghanica Boiss., Fl. Or. (suppl.). 55. 1888. Schulz in Engl. 1.c.117; Rech.f.,l.c.179.

S.M.H. Jafri

Draba affghanica

Credit: Shaukat & Azmat

  • Draba affghanica var. rostrata (Pohle) O.E. Schulz
  • Draba alpina* auct. non Linn.
  • Draba rostrata Pohle

    Perennial, loosely caespitose, leafy below; rootstock flexuose, prostrate, branched; scapes up to 5 cm long in fruit, aphyllous (rarely 1-leaved), pubescent. Radical leaves ± rosulate, oblanceolate or lanceolate, 5-15 (-18) mm long, (1.5-) 2.5-5 mm broad, sessile, entire (rarely obscurely 1-3-dentate), hairy with simple or branched, slightly rough hairs, 1-veined. Racemes (3-) 5-12-flowered, corymbose. Flowers c. 5 mm across, yellow; pedicels 5-10 mm long in fruit, spreading or upcurved, hairy. Sepals 2.5-3 mm long. Petals 4-5 (-6) mm long, c. 2 mm broad, apex sub-emarginate. Stamens c. 2.5: 3 mm long; anthers c. 0.5 mm long. Siliculae (3-)5-7(-8) mm long, 2.5-4 mm broad, ovoid, acute, base usually rounded; valves slightly convex, minutely hairy to sub-glabrous with simple or branched hairs, sometimes glabrous; style 1-2 mm long with depressed capitate stigma; septum not veined; seeds 2-4 in each locule, c. 1 mm long, ovate-oblong, dark reddish-brown.

    Fl. Per.: May July.

    Type: Pakistan-Afghanistan border, Sikaram, 4500 m, Aitchison 99(K); syntypes: Sikaram, Aitchison 112 and 126(K).

    Distribution: Afghanistan, Pakistan and N. W. Himalayas.

    A very variable species but loose rosette of basal leaves, usually pubescent fruits with uniformly subconvex or flat valves and distinct style are its characteristics.


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