[wildflower.org] Characteristics, Distribution: Plant Characteristics Duration: Perennial Habit: Herb Leaf Shape: Runcinate Size Notes: Up to about 20 inches tall. Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene. Bloom Information Bloom Color: Yellow Bloom Time: Mar , Apr , May , Jun , Jul , Aug Distribution USA: AK , CA , CO , ID , MA , ME , MT , NH , NM , NV , OR , UT , WA , WY Canada: SK Growing Conditions Soil pH: Alkaline (pH>7.2) CaCO3 Tolerance: High (link added by Mary Ann Machi)