About Lupinus hirsutissimus Benth.
Lupinus hirsutissimus Benth. is an erect annual herb. It typically grows 20 centimeters (7.9 inches) to 1 meter tall, and it may grow taller than one meter in habitats that are recovering from wildfire. The stem and all aboveground plant parts are covered in long, stiff hairs that cause stinging irritation to the skin when touched. Each palmate leaf consists of 5 to 8 leaflets; individual leaflets can reach up to 5 centimeters (2.0 inches) long and 1 to 2 centimeters wide. The inflorescence holds multiple flowers that are generally not arranged in whorls. Each individual flower is between 1 and 2 centimeters long, and is dark pink with a yellowish to pinkish spot on its banner. The fruit is a hairy legume pod that can grow up to 4 centimeters (1.6 inches) long.
