California Dutchman's-Pipe

Aristolochia californica is a deciduous vine with purple-striped curving pipe-shaped flowers which give rise to winged capsular green fruits. After it blooms, the plant sends out new green heart-shaped leaves. The vines grow from rhizomes to a length of over twenty feet and can become quite thick in circumference at maturity. This plant is common in moist woods and in riparian zones along streams in Northern and Central California.