Euphorbia austrotexana var. austrotexana

IllustratedEndemicConservation concern
Treatment appears in FNA Volume 12. Treatment on page 299.

Stems 10–22 cm. Leaves: blade linear-oblanceolate, apex rounded. Dichasial bracts reniform-ovate to subdeltate-ovate, base truncate. Seeds 1.6–1.7 × 1.1–1.3 mm, surface with regular concave depressions. 2n = 26.

Phenology: Flowering and fruiting spring.
Habitat: Sandy soils.
Elevation: 200–300 m.


Variety austrotexana is restricted to Atascosa, Bexar, and Wilson counties. According to M. H. Mayfield (2013), only five documented localities are known.

Selected References


Lower Taxa

Ricarda Riina +, Dmitry V. Geltman +, Jess A. Peirson +  and Paul E. Berry +
Mayfield +
200–300 m. +
Sandy soils. +
Flowering and fruiting spring. +
J. Bot. Res. Inst. Texas +
Illustrated +, Endemic +  and Conservation concern +
Galarhoeus +  and Tithymalus +
Euphorbia austrotexana var. austrotexana +
Euphorbia austrotexana +
variety +