Common names: massasauga, black massasauga, black rattler, more. The massasauga (Sistrurus catenatus) is a venomous pitviper rattlesnake species found primarily in the United States.Three subspecies are currently recognized including the nominate subspecies described here.he massasauga rattlesnake is listed as threatened under both Ontario's Endangered Species Act, 2007, and the federal Species at Risk Act, and is protected under the Fish and Wildlife Conservation Act.
The definition of a zephyr is a soft breeze, the west wind or a lightweight article of clothing. 1  A light cotton dress is an example of a zephyr. 2  A light breeze is an example of a zephyr.
The sporophyte is also the dominant generation in seed plants. Seed plants are vascular plants that produce seeds and include some nonflowering plants (like pine trees) and flowering plants (like oak trees and roses). sporophyte is a multicellular diploid generation found in plants and algae that undergo alternation of generations. It produces haploid spores that develop into a gametophyte.