Opuntia macrocentra 4 millimeters in length with a broad notch on one side and prominent ridge. Because of its striking stem and bloom color the "Opuntia macrocentra" cactus is cultivated as an ornamental plant for drought tolerant and native plant gardens, and as a potted plant. Like many other cacti in the "Opuntia" genus, the fruit produced by "Opuntia macrocentra" is edible. Collection of this cactus, and its fruit, is restricted in some areas for conservation needs. Opuntia macrocentra Opuntia macrocentra, the long-spined purplish prickly pear or purple pricklypear, is a cactus found in the lower Southwestern United States and Northwestern Mexico.
Plant functional type key parameters are defined, such as fecundity, competitiveness, resorption (rate at which plant decays and returns nutrients to the soil after death), etc.; the value of each parameter is determined or inferred from observable characteristics such as plant height, leaf area, etc. Climatologists and ecologists struggle to determine which minimal set of plant characteristics best model the actual responses of the biosphere in response to climate changes. Plant functional type Plant functional types (PFTs) is a system used by climatologists to classify plants according to their physical, phylogenetic and phenological characteristics as part of an overall effort to develop a