Toxicity can vary in a plant according to season, the plant???s different parts, and its stage of growth; and plants can absorb toxic substances, such as herbicides, pesticides, and pollutants from the water, air, and soil.Flower April to June.Habitat Semi-shaded western slopes in chaparral and open forests; 180-760 ft (600-2500 m).Range The Sierra Nevada, Klamath Ranges, and North Coast Ranges of