Phylum: Magnoliophyta - Class: Equisetopsida - Order: Asterales - Family: Asteraceae
A very prickly character indeed, the Spanish Oyster Plant, with its green leaves and numerous bright yellow flowers, flourishes even in the hottest weather. A member of the Daisy (Asteraceae) family, this wildflower is widespread throughout the region, where it colonises all sorts of unlikely places including urban locations, as the plant shown above has done. Spanish Oyster Plant flowers from May to September.
This specimen was photographed in the Algarve, southern Portugal, during May.