agavaceae: chiefly tropical and xerophytic plants: includes Dracenaceae (Dracaenaceae); comprises plants that in some classifications are divided between the Amaryllidaceae and the Liliaceae
monocot family: family of flowering plants having a single cotyledon (embryonic leaf) in the seed
rough-legged hawk: large hawk of the northern hemisphere that feeds chiefly on small rodents and is beneficial to farmers