Publication: Synopsis der Mitteleuropäischen Flora 2(1): 325. 1900.
Origin: Introduced from central South America
selected vouchers: WTU
Notes: Recently collected as an escape from cultivation in King & Snohomish Cos.
FNA25: "Cortaderia selloana is native to central South America. It is cultivated as an ornamental in the warmer parts of North America. It was thought that it would not become a weed problem because most plants sold as ornamentals are unisexual, but it is now considered an aggressive weed in California and Bendigo, Australia. The weedy Australian plants are bisexual (Walsh 1994)."