Figure 28.21 Eudicots (A) Eudicots include many trees, such as this crabapple tree. (B) Scarlet Banksia is a species of an Australian genus of eudicots that attracts a wide diversity of pollinators by producing large quantities of nectar. (C) Cacti comprise a large group of eudicots, with about 1,500 species in the Americas. Many, such as this spinystar cactus, bear large flowers for a brief period of each year. (D) Rafflesia arnoldii, found in the rainforests of Indonesia, bears the largest flower in the world. The flower lives as a parasite on tropical vines and has lost its leaf, stem, and even root structures. It smells like decaying meat, which attracts its fly pollinators.