Barrel cactus spines (Echinopsis sp.). The spines of a cactus are its leaves. They arise from areoles (white),cushioned areas of tissue covering its surface. Areoles are a morphological feature unique to cacti | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wheeler, Dr. Keith |
Bildgröße: | 4368 px × 2912 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |