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Euphorbiaceae family

Euphorbia thymifolia
Linnaeus
, Sp. Pl. 1: 454.  1753.
Syn.: Chamaesyce thymifolia (Linnaeus) Millspaugh  (1916).

Indigenous very common prostrate herb of dry, stony open areas at lower elevations.
Pantropical and pansubtropical.

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.