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3 <br />INDICATOR CATEGORIES* <br />Obligate Wetland (OBL) - Occur almost always (estimatedprobability >99%) under <br />natural conditions in wetlands. <br />Facultative Wetland (FACW) - Usually occur in wetlands (estimatedprobability 67% <br />99%), but occasionally found in non-wetlands. <br />Facultative (FAC) - Equally likely to occur in wetlands or non-wetlands (estimated <br />probability 34% • 66%). <br />Facultative Upland (FACU) - Usually occur in non-wetlands (estimatedprobability <br />67% • 99%), but occasionally found in wetlands (estimatedprobability 1% - 33%). <br />Obligate Upland (UPL) - Occur in wetlands in another region, but occur almost always <br />(estimated probability >99%) under natural conditions in non-wetlands in the region <br />specified. If a species does not occur in wetlands in any region, it is not on the National <br />List. <br />*Reed. P.B. 198S National list of plant species that occur in wetlands: Minnesota. National Wetlands Inventory. U S. Fish and <br />Wildlife Service. St. Petersburg. Rorida.