Flax Broom

Description:

From Wikipedia: "This is a shrub with hairy green stems and branches which can exceed two meters in height. Its leaves are made up of tough, green, lance-shaped leaflets with woolly undersides. Flowers appear in dense raceme inflorescences toward the ends of the branches. The flowers are bright yellow and pealike. The fruit is a hairy legume pod one to four centimeters long containing several seeds."

Notes:

It's a highly invasive species on the island and is a huge fire hazard. The Catalina Conservancy has been working hard for years to try to eradicate these from the island.