purslane
Concise Oxford English Dictionary © 2008 Oxford University Press:
purslane /ˈpəːslən/
▶noun a small fleshy-leaved plant of damp or marshy habitats, some kinds of which are edible. [Atriplex portulacoides (sea purslane) and other species.]
– origin ME: from OFr. porcelaine, prob. from L. porcil(l)aca, var. of portulaca, influenced by Fr. porcelaine ‘porcelain’.
'purslane' also found in these Oxford entries:

