Image Title : Giant Kelp :: Number : UW82

Giant Kelp (Macrocystis pyrifera) starts out small but can grow up to 200 feet or longer. It is the largest of the kelp species and can grow more than 18 inches a day. Vast forests grow off the coast of southern California. Algin is extracted from kelp and used in food products, drugs, and the processing of textiles, beer, paints, ice cream, and paper products. California.

Image 30 of 40 in this gallery.