small vegetative diaspores produced in axils of leaves on stems above-ground or below-ground; depending on the location of storage within the buds they are called bulbils (storage located in scale leaves), stem tubercules (storage located in the stem part) and root tubers (storage located in an adventitious root); they soon fall down from the parent plant and immediately start to grow, having no dormancy, whereas below-ground bulbils and tubercules may postpone their development until spring; young plants regenerating from bulbils and tubercules resemble seedlings in their morphology and size
