AMBIANCE, AMERICA, ANDES, ANGIOSPERMAE, APRIL, ARCHAEPLASTIDA, BOTANY, CACTACEAE, CACTUS, CARYOPHYLLALES, CHLOROBIONTA, CLOSE-UP, CYCLE, DETAIL, DETAILS, DICOTYLEDON, DICOTYLEDONEAE, doelziana, DOELZIANUS, DROUGHT, DRY, EMBRYOPHYTA, EUKARYOTA, FLORA, FLOWERING, FULL, GLOBAL, GROWING, INDIVIDUAL, ITALY, LENGTH, LIGURIA, LONG-LASTING, LONG-LIVED, MALETIC, MAN, MORAWETZIA, MORPHOLOGY, MOUNTAIN, MULTIANNUAL, NOBODY, OF, OLD, ORDER, OREOCEREUS, ORGANISM, OVERVIEW, OVERVIEWS, PARTICULARITY, PERENNIAL, PERENNIALS, PERU, PHANEROGAMAE, PLANT, PLANTS, ROSETTE, ROSETTES, SEASON, SEASONS, SHOT, SIGHT, SIGHTS, SOUTH, SP, SPECIES, SPERMATOPHYTA, SPERMATOPHYTE, SPINEY, SPINY, SPRING, SUCCULENT, TEMPERATE, THE, THORN, THORNS, TOLERANT, TONCI, TRACHEOPHYTA, WITH, XEROPHILE, XEROPHILES, XEROPHYTE, XEROPHYTES, XEROPHYTIC,