Euphorbia heterophylla L., it is an annual herb, up to 90 cm tall. Leaves mostly opposite, all petiolate, the petioles up to 4 cm long. Leaf-blades variable, elliptic-obovate to elliptic-oblanceolate or sometimes narrowly-lanceolate, 1-15 x 0.5-8 cm, the upper often narrower than the lower, acute, subacute or obtuse at the apex, cuneate or rounded-cuneate at the base, entire, denticulate or dentate, lateral nerves up to 20 pairs, sub glabrous and dull green above, sparingly-puberulous and paler beneath, the upper leaves sometimes faintly purplish-blotched at the base. Stipules sessile, glandular. Inflorescence a pseudo-dichasium or rarely a triradiate pseudo pleiochasium, with the cyathia aggregated together in dense terminal clusters. Glands 1-2 (-3), stipitate, circular, concave. Fruits roundly trilobate, 4-4.5 x 5-5.5 mm, smooth, glabrous. Styles connate at the base, 1 mm long, bifid. Seeds is quadrangular-ovoid, basally truncate, 2-2.5 x 1.5-2 mm, coarsely bluntly tuberculate, dark brown.
Flowering in: Apr-May.
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