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Pakistan | Family List | Euphorbiaceae | Euphorbia

46. Euphorbia talaina A. Radcliffe-Smith in Kew Bull. 41 (2): 319, t. 320. 1986.


  • Euphorbia leptocaula sensu Rechinger fil. & Schiman-Czeika
  • Euphorbia taurinensis sensu Stewart

    A slender, erect or ascending generally glabrous glaucous often reddish-tinged perennial herb upto 25 cm tall with a few very thin stems arising from a woody rootstock. Stem-leaves alternate, shortly petiolate, the petioles c. 1 mm long, leaf-blades linear or narrowly lanceolate, oblong or oblong-oblanceolate, 1-4.5 cm x 1-5 mm, acute, subacute, obtuse or rounded at the apex, gradually to abruptly tapered into the petiole, entire, obscurely penninerved. Pseudumbel (4-) 5-rayed, the rays usually once, rarely twice bifid; axillary rays 1-5 below the pseudumbel, or absent; pseudumbel-leaves (4-) 5, whorled, resembling the upper stem-leaves;ray-leaves opposite, trullate-lanceolate, trullate-ovate or rhombic-ovate, 0.5-2 cm x 2-9 mm, acute to sharply acuminate at the apex, cuneate or rounded at the base. Cyathia subsessile, obconic. Glands crescentic, concave on the outer edge and with 2, rarely 3, blunt usually convergent horns arising from the corners; glands ochreous, horns paler and sometimes pinkish-tinged. Fruit rounded-trilobate, 3-3.5 x 3.5-4 mm, minutely verruculose on the keels, otherwise smooth, pale green, the verruculae whitish. Styles at first erect, later divaricate to recurved-spreading, 1-1.5 (-2) mm long, united for 1/3 their length, bifid, the stigmas slightly thickened. Seeds ovoid, 2.25 x 1.5 x 1.25 mm, smooth, pale grey, with a small excentric conical caruncle.

    Fl. & Fr. Per.: May - Aug.

    Holotype: Pakistan, Baluchistan, D-4 Quetta - Pishin, Quetta, 14 May 1952, Helen Crookshank 157 (K).

    Distribution: Endemic. Locally common in moist locations, e.g. by freshwater springs and in shady gardens; 7500'/2290 m. - 9000'/2740 m.

    This new species had been confused in the literature and on herbarium labels with a number of other species both within and outside Pakistan. It is closely related to Euphorbia leptocaula Boiss. from SW Russia, from which it differs by the form of its stem- and ray-leaves, but it has also been confused with Euphorbia dracunculoides Lam. and Euphorbia taurinensis All. (which are both annuals), with Euphorbia variabilis Ces. (an Alpine endemic), with Euphorbia retusa Forssk. and Euphorbia stocksiana Boiss. (despite the entire leaves), with Euphorbia cornigera Boiss. (despite the comute glands), and with Euphorbia boissieriana (Woron.) Prokh., Euphorbia cyrtophylla Prokh. and Euphorbia osyridea Boiss. (despite the graceful, slender habit).


    Related Objects  
  • Illustration (M. Rafiq)
  • Illustration

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