Weingartia is a group of small, globular cacti from South America, particularly valued for their detailed spination and attractive flowers. Their compact bodies may be covered with closely arranged spines in shades of white, golden yellow or reddish brown, giving the plants a textured appearance even when they are not in bloom. With their manageable size and ornamental structure, Weingartia cacti are well suited to collectors who enjoy finely formed plants and unusual flowering varieties.