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Pakistan | Family List | Euphorbiaceae | Euphorbia

9. Euphorbia thymifolia L., Sp. Pl. 454. 1753. Boiss. in DC., Prodr. 15(2): 47. 1862; Hook. f., Fl. But. Ind., 5: 252. 1887; Rech. f. & Schiman-Czeika in Fl. Iran. 6: 18. 1964; Stewart, Ann. Cat. Vasc. Pl. W. Pak. & Kashm. 453. 1972.


A prostrate annual herb with the stems flattened and puberulous or pubescent above, terete and glabrous beneath, extending to 25 cm. Petioles 0.5-1 mm long. Leaf-blades ovate-oblong, 3-8 x 1-5 mm, subacute, obtuse or rounded at the apex, obliquely rounded at the base, minutely serrulate in the upper half, otherwise ± entire, palminerved. Stipules linear-lanceolate, 1 mm long, remotely fimbriate, upper and lower both paired. Cyathia solitary in the leaf-mils on microphyllous lateral shoots, pedunculate.Glands suborbicular, purplish, minutely or scarcely appendiculate. Fruits trigonous, 1 x 1 mm, smooth, adpressed-pubescent with multicellular hairs, ochreous, ripening on not or scarcely-extending pedicels thus often causing the cyathia to split down the side. Seeds ovoid-cylindric, quadrangular, shallowly transversely furrowed and ridged, 0.7 x 0.4 mm, pinkish-grey.

Holotype: India, ? spm. no. 630/10 in Fib . Linn. (LINN).

Distribution: Widespread in Tropical Asia and America, and introduced into E. Tropical Africa.


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