It is a hairy
perennial herb growing from a narrow brown to black
taproot and woody
caudex. It produces a cluster of stems up to about long. The stems are lined with narrow, pointed
leaves up to long. Blooming from May to July, the slender, trumpet-shaped flowers are pale to bright yellow or gold. They may approach long, while the corolla face is 1 to 2 cm wide, its lobes sometimes ruffled. The smaller cleistogamous (closed) flowers are the main producers of seed. The fruit comprises four nutlets, each some long. == Distribution and habitat ==