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Euphorbiaceae family

Euphorbia prostrata Aiton, Hort. Kew. 2: 139.  1789.
Syn.: Chamaesyce prostrata (Aiton) Small (1903).

Indigenous. quite rare prostrate herb of dry open areas, often with a light or sandy soil, at lower elevations.
Probably originating in the neotropics or neosubtropics.

Three similar species:
E. serpens has round leaves, usually solitary involucres in leaf axils, and hairless capsules.
E. prostrata has oblong leaves, involucres in groups in leaf axils, and capsules that have a fringle of long hairs on the keels, otherwise glabrous.
E. thymifolia has oblong leaves, involucres in groups in leaf axils, and capsules that are somewhat hairy on all parts.