FIGURE 4 in Taxonomic revision of the Opuntia humifusa complex (Opuntieae: Cactaceae) of the eastern United States

FIGURE 4. Morphological features of O. abjecta. A) type specimen, J.K. Small s.n., Monroe Co., Florida (NY), B) growth form of diploid (L.C. Majure 3908), and C) tetraploid material (L.C. Majure 3318), D) spine development of a terminal cladode of diploid O. abjecta showing 1–3 spines produced per areole (L.C. Majure 3908), E) flower bud of O. abjecta (L.C. Majure 3908), F) slightly thickened roots developing on a specimen planted for almost 2 years (L.C. Majure 3908), G) flowers of diploid (L.C. Majure 3908), and H) tetraploid O. abjecta (L.C. Majure 3318), and (I) barrel-shaped fruit of diploid O. abjecta (L.C. Majure 3908). All photos taken by L.C. Majure.