knowlton's cactus

English Thesaurus

1. small clustering cactus of southwestern United States; a threatened species (noun.plant)

hypernym	:	cactus,
definition	:	any succulent plant of the family Cactaceae native chiefly to arid regions of the New World and usually having spines (noun.plant)

member meronym	:	genus pediocactus, pediocactus,
definition	:	low-growing cacti of the Great Plains of North America (noun.plant)