Contains 9 accepted taxa overall.
Characteristics
Classification
Citation
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Species
| Scientific Name | Common Name | Status | Photos |
|---|---|---|---|
| Trillium cernuum | nodding trillium | Native FACW (NWPL EMP) FAC (NWPL NCNE) S3 (State Rank) G5 (Global Rank) | |
| Trillium cernuum × T. erectum | hybrid trillium | Native | |
| Trillium cuneatum | sweet Betsy | Not Native Naturalized SNA (State Rank) G4G5 (Global Rank) | |
| Trillium erectum | purple trillium, stinking Benjamin | Native UPL, FACU (NWPL) FACU (NWPL EMP) FACU (NWPL NCNE) S5 (State Rank) G5 (Global Rank) | |
| Trillium flexipes | bent trillium | Native Endangered-State FACU, FAC (NWPL) FAC (NWPL EMP) FAC (NWPL NCNE) S1 (State Rank) G5 (Global Rank) | |
| Trillium grandiflorum | white trillium | Native S5 (State Rank) G5 (Global Rank) | |
| Trillium recurvatum | prairie trillium | Not Native UPL (NWPL EMP) FACU (NWPL NCNE) SNA (State Rank) | |
| Trillium sessile | toadshade trillium, sessile trillium | Native Endangered-State FACU- (NWPL) UPL (NWPL EMP) FACU (NWPL NCNE) S1 (State Rank) G5 (Global Rank) | |
| Trillium undulatum | painted trillium | Native FACU (NWPL EMP) FACU (NWPL NCNE) S5 (State Rank) |