Description from Flora of China
Euphorbia lucidissima H. Léveillé & Vaniot, Bull. Herb. Boissier, ser. 2, 6: 763. 1906; Euphorbiopsis lucidissima (H. Léveillé & Vaniot) H. Léveillé.
Plants 10-30 cm tall, glabrous, from woody rootstock, apparently perennial. Stems woody at base, erect, much branched, obscurely 4angled. Basal leaves short petiolate; leaf blade ovate; middle to upper stem leaves with paired blades orbicular, perfoliate, 0.7-2 cm in diam., reticulate veins prominent. Cymes pseudodichotomous, many flowered; bracts foliose. Flowers 5merous. Calyx campanulate, 5-6 mm, tube membranous; lobes triangular, 1-1.5 mm, apex acute. Corolla white or pale yellow, campanulate, 6-8 mm; lobes oblong-spatulate, 2-2.5 mm, margin entire, apex obtuse. Stamens subequal; filaments filiform, 1.5-2 mm; anthers ellipsoid, 0.7-1 mm. Style filiform, 2-2.5 mm; stigma lobes orbicular. Capsules broadly ellipsoid, 4-5 mm. Seeds light brown, 0.4-0.5 mm. Fl. and fr. Aug.
The relationship of Canscora lucidissima to the other species of Canscora needs further investigation. The superficial similarity to some species of Euphorbia sect. Esula is quite striking.
* Limestone slopes. Guangxi, Guizhou