Opuntia abjecta ease. "O. abjecta" is a small plant with radiating branches, a subshrub. Retrorsely barbed spines are reddish-brown as they develop; they mature to pale white (not bright white). Zero to three spines are produced by terminal cladodes. Generally, the spines of "O. abjecta" are shorter than 4 cm. The flower bud of "O. ajbjecta" is rounded (not acute). "O. abjecta" has teardrop-shaped leaves. The seeds are about 4 mm in diameter. Opuntia abjecta Opuntia abjecta is a short cactus, perhaps to 15(25) cm tall. It occurs in the Florida Keys and has been conflated with "O. triacantha". Recent work shows
Plant functional type 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 vegetation model for use in land use studies and climate models. PFTs provide a finer level of modeling than biomes, which represent gross areas such as desert, savannah, deciduous forest. In creating a PFT model, areas as small as 1 km are modeled by defining the predominant plant type for that area, interpreted from satellite data or other means. For each plant functional type, a number of