Systems Affected (standardized):
Regions(s) present (updated by AB):
Source? likely to be reintroduced:
Forms dense mats that out-compete native vegetation, including Oklahoma's only federally endangered plant species. Can grow new plants from fragmented pieces. Introduced as a contaminant of rice seed.
Native Regions in OK:
Current and past designations:
Present in OK?
Present in Bordering States?
Has Legal Status in BS?