Orobanchaceae: Broomrape Family — Castilleja (Paintbrush & Owl’s-clover)
Members of the broomrape family are all parasites. The Orobanche genus is fully parasitic and its members have no green leaves capable of photosynthesis and so providing nutrients to the plant. Others, like Castilleja, are hemiparasitic, meaning that they have green leaves capable of photosynthesis but also derive some of their nutrients from the roots of nearby plants. Castilleja fall into two groups, those with bright red, orange or yellow flowers but without a 3-pouched lower lip (the Paintbrushes) and those with a 3-pouched lower lip but flowers which may be one of a variety of colors but not bright red (the Owl’s-clovers).