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Pakistan | Family List | Gentianaceae | Swertia

4. Swertia longifolia Boiss., Diagn. Pl. Nou. Ser. I(5):90. 1844. Shah in Sc. Khyber, 3:49. 1990 (Fig. 52).

J. Shah

Islamia College, Peshawar, Pakistan

Swertia longifolia

Credit: M. Rafiq

  • Swertia aucheri Boiss.
  • Swertia kiharae Kitam.
  • Swertia lactoa Bunge
  • Swertia persica Griseb.
  • Swertia persica* Kitam.
  • Swertia sclugnanica Pissjauk.
  • Swertia variabilis Pissjauk.
  • Swertia warackensis Freyn

    Perennial. Stem 20-90 cm, unbranched, rarely branched at the very, cylindrical, glabrous, Basal leaves 5-30 x 0.5-3 cm, narrowly ovateulate to oblong-spathulate or obovate, acute or obtuse, 3-7(-9)-nerved. Cauline leaves 1-3 pairs, 2-16 x 0.5-3 cm, opposite connate, narrowly ovate-spathulate to obovate, obtuse or acute, 3-7-nerved, Inflorescence paniculate. lobes 3-7 x 1-2 mm, narrowly ovate to ovate, acute. Corolla bluish to pale green, tube 0.5-1 mm, lobes 8-16 x 1-2.5 mm, ovate to elliptic-acute or obtuse or erose. Gland one per lobe, saccate fimbriate, pocket-shaped, rarely with a few or sometimes with no fimbriae in flowers, sometimes reniform or bilobed. Filaments 5-10 mm, filiform, squamellate at the base or not, anthers ovate-apiculate or obtuse. Ovary 6-10 long, stigmas sub-orbicular, sessile. Capsule 8-12 mm long. Seeds corrugate, cristate.

    Fl. and Fr. Per.: Jun. - Oct.

    Type: Persia (N), Alamut, Aucher 4960 (G) (Iso.-BM!, BP!, K!, W!, WU!).

    A-7 Chitral, Kafiristan, 2000 m. Jehandar Shah 1030 (ICP), C-7 Kurram: Biankhel and Sergal, Aitchison, 876(K), Kurram valley, 2500 m, Jehandar Shah 991 (ICP).

    Distribution: E. Turkey, N. Iraq, N.W. Iran, N. afghanistan, Central Asia and Pakistan.


    Related Objects  
  • Illustration (M. Rafiq)
  • Image/JPEG

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