General: Perennial evergreen herbs from a thick, blackish rhizome.
Stems: 30-120 cm tall, 4-6 mm thick, dark green, their cental cavity more than 2/3 the stem diameter, not branched, the sheaths with 14-50 teeth that fall off leaving only darker traces.
Cones: 8-15 mm long, the tip tapered to a black-tinged point.
Moist alluvial forests, riverbanks, roadsides, clearings and forest margins in the lowland, steppe and montane zones; frequent throughout BC; N to AK, YT and NT, E to NF and S to SC, GA, AL, MS, TX, NM, AZ, and CA.
Ecological Framework for Equisetum hyemale ssp. affine
The table below shows the species-specific information calculated from original data (BEC database) provided by the BC Ministry of Forests and Range. (Updated August, 2013)
