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Pakistan | Family List | Brassicaceae | Draba

Draba oreades Schrenk in Fisch. & Mey., Enum. Pl. Nov. 2:56. 1842. Schulz in Engler, l.c.106; in Engl. & Prantl, l.c. 506; Tolm. in Kom.,F1. U.R.S.S. ed. 2, 8: 393.1939; Hedge in Rech.f., l.c 181.

Draba oreades

Credit: Shaukat & Azmat

  • Draba affghanica* Pohle
  • Draba alpina auct. non Linn.
  • Draba kizylarti (Korsh.) N. Busch
  • Draba tianschanica Pohle
  • Pseudobraya kizyl-arti Korsh.

    Perennial, caespitose herbs; rootstock not thick, covered with leaf bases; scapes 3-8 (-10) cm long in fruit, aphyllous, erect or suberect. Radical leaves rosulate, very variable in size and hairiness, usually lanceolate or obovate-oblong to elliptic-obovate, (2.5-) 5-25 mm long, 1-5 mm broad, entire to obscurely den¬tate, ciliately hairy with simple or furcate hairs. Racemes 5-15-flowered, corym¬bose. Flowers c. 4 mm across, yellow to yellowish-white; pedicels 4-6 (-8) mm long in fruit, spreading or ascending. Sepals 2-2.5 mm long. Petals c. 4 mm long, 1.5 mm broad, apex subemarginate. Stamens c. 2: 2.5 mm long. Siliculae (3-) 4-6 mm long, (2-) 3-5 mm broad, ovoid, flattened, usually somewhat inflated in the lower half, sometimes subcontorted, acute, base ± rounded, glabrous rarely sparsely hairy ; valves obscurely veined, sometimes with a faint mid-vein; style c. 1 mm long with a short, depressed stigma; septum not veined; seeds 3-6 in each locule, c. 1 mm long, ovoid, brown.

    Fl.Per.: June -July.

    Type: Described from C. Asia, Kazakastan (LE).

    Distribution: C. Asia, Himalayas, Karakorum, Pakistan.

    A very polymorphic species with regards to its leaves, hairiness and siliculae.

    Some of the specimens reach very near to Draba affghanica Boiss.


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