Haworthia angustifolia var. paucifolia Haworthia angustifolia var. altissima Haworthia angustifolia var. baylissii Haworthia angustifolia var. angustifolia
Catevala angustifolia Haworthia chloracantha var. angustifolia Haworthia chloracantha subsp. angustifolia Haworthia angustifolia var. grandis Haworthia angustifolia var. albanensis Haworthia angustifolia var. liliputana
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024