The Old World grass genus, Crypsis, is represented in the United States by three naturalized taxa. Although these are usually treated as specifically distinct in America, European botanists consider ...

Eastern prickly pear cactus What does it look like? The eastern prickly pear cactus is a perennial succulent cactus, with jointed, curved, flat green stems. Each of its segments is called a pad, and ...

8.1 Approaches Used to Identify Critical Habitat 8.2 Maps of Eastern Prickly Pear Cactus Critical Habitat 8.3 Critical Habitat Within Point Pelee National Park 8.4 Critical Habitat Within Fish Point ...

1. Orientation with respect to the sun has been observed in a wide range of species and has generally been interpreted in terms of thermoregulation and/or ultraviolet (UV) protection. For ...