noun, masculine/aɾˈθoʝa/plural: arzollas
almond; Any of many flowering plants of the genus Centaurea, especially of the species Centaurea melitensis, Centaurea ornata and Centaurea solstitialis
Synonyms: almendra, almendruco, alloza, abrepuños, abrepuño
Probably from *azolla, via metathesis from alloza (“almond”).