Contains 12 accepted taxa overall.
Characteristics
Classification
Citation
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Species
| Scientific Name | Common Name | Status | Photos |
|---|---|---|---|
| Equisetum arvense | field horsetail, common horsetail | Native FAC (NWPL EMP) FAC (NWPL NCNE) S5 (State Rank) | |
| Equisetum arvense × E. fluviatile = E. ×litorale | shore horsetail | Native OBL (NWPL) OBL (NWPL EMP) OBL (NWPL NCNE) SNA (State Rank) GNA (Global Rank) | |
| Equisetum fluviatile | river horsetail | Native OBL (NWPL) OBL (NWPL EMP) OBL (NWPL NCNE) S5 (State Rank) G5 (Global Rank) | |
| Equisetum hyemale × E. laevigatum = E. ×ferrissii | Ferriss’s scouring rush | Native FACW (NWPL EMP) FACW (NWPL NCNE) SNA (State Rank) GNA (Global Rank) | |
| Equisetum hyemale × E. variegatum = E. ×trachyodon | Mackay’s scouring rush | Native FACW (NWPL EMP) FACW (NWPL NCNE) SNA (State Rank) GNA (Global Rank) | |
| Equisetum hyemale ssp. affine | common scouring rush | Native FACW (NWPL EMP) FAC (NWPL NCNE) S5 (State Rank) G5T5 (Global Rank) | |
| Equisetum laevigatum × E. variegatum = E. ×nelsonii | Nelson’s scouring rush | Native FAC (NWPL EMP) FAC (NWPL NCNE) SNA (State Rank) GNA (Global Rank) | |
| Equisetum palustre | marsh horsetail | Native Threatened-State FACW (NWPL) FACW (NWPL NCNE) S2 (State Rank) G5 (Global Rank) | |
| Equisetum pratense | meadow horsetail | Native Threatened-State FACW (NWPL) FACW (NWPL EMP) FACW (NWPL NCNE) S2 (State Rank) G5 (Global Rank) | |
| Equisetum scirpoides | dwarf scouring rush | Native FACU, FAC+ (NWPL) FAC (NWPL EMP) FAC (NWPL NCNE) S5 (State Rank) G5 (Global Rank) | |
| Equisetum sylvaticum | wood horsetail | Native FACU, FACW (NWPL) FACW (NWPL EMP) FACW (NWPL NCNE) S5 (State Rank) G5 (Global Rank) | |
| Equisetum variegatum ssp. variegatum | variegated scouring rush | Native FACW (NWPL EMP) FACW (NWPL NCNE) S4 (State Rank) |