top of page

Nances, Willows, and Allies of Zihuatanejo

ORDER MALPIGHIALES

Royal Sandmat

Euphorbia dioeca

Flowers by Colour

-Plants (Kingdom Plantae)

-Vascular Plants (Phylum Tracheophyta)

-Flowering Plants (Subphylum Angiospermae)

-Dicots (Class Magnoliopsida)

-Nances, Willows, and Allies (Order Malpighiales)

-Spurge Family (Family Euphorbiaceae)

-Subfamily Euphorbioideae

-Tribe Euphorbieae

-Subtribe Euphorbiinae

-Spurges (Genus Euphorbia)

-Subgenus Chamaesyce

-Sandmats (Section Anisophyllum)

-Euphorbia dioeca


Euphorbia dioeca (Royal Sandmat), is a low-growing, prostrate annual herb native to a range spanning from the southwestern United States (specifically Arizona, New Mexico, and Texas) through Mexico and into tropical America. Like other members of its genus, it produces a caustic, milky white sap that can be irritating to the skin. Its unique flowering structures, known as cyathia feature cream to pink petal-like appendages.

Description

• Euphorbia dioeca is a perennial herb in the spurge family (Euphorbiaceae). Like other members of the genus Euphorbia, it has small, inconspicuous flowers grouped into specialized structures called cyathia and may produce a milky latex when its stems or leaves are damaged. The plant's growth form and leaf characteristics can vary, and detailed species-specific information is limited.

Range

• Euphorbia dioeca is recorded in Mexico and belongs to the diverse group of spurges found throughout tropical and subtropical regions. It is native to Zihuatanejo, Guerrero, and the surrounding area.

Habitat

• It grows in warm environments and may occur in open woodland, tropical scrub, grassland, and disturbed ground. As with many herbaceous spurges, its local distribution can be influenced by seasonal rainfall, soil drainage, and the amount of sunlight available.

bottom of page