// SPECIES PROFILE · PERENNIAL · NATIVE

Scouring-rush horsetail

Equisetum hyemale var. affine

Scouring-rush horsetail (Equisetum hyemale var. affine) is a perennial in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 1a–11b. Mature size 29"–6'.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to 50 U.S. states, including AK, AL, AR, AZ, CA, CO…
USDA hardiness: Zones 1a–11b
Mature size: 29"–6'
Sun: Part shade
Water: Medium
Bloom: —
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Scouring-rush horsetail (Equisetum hyemale var. affine) — *Equisetum hyemale var. affine* — Scouring-rush horsetail. Photo via iNaturalist — (c) Sara Patton, some rights reserved (CC BY).

Field Notes

[ growing · ecology · siting · care ]

Scouring-rush horsetail (Equisetum hyemale var. affine) is a perennial in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 1a–11b. Mature size 29"–6'.

Why it's on this list: native species profile. Native-range data from the Lady Bird Johnson Wildflower Center (NPIN), cross-checked against iNaturalist observations. Part of Rooted Revival's regional native plant catalog — true natives for Oklahoma, Arkansas, Missouri and Kansas.

Companion Planting

[ guild · polyculture · cross-layer pairings ]

In the same native range, scouring-rush horsetail pairs naturally with: Lady Fern (Athyrium filix-femina), Wild Strawberry (Fragaria virginiana), Yarrow (Achillea millefolium), Common selfheal (Prunella vulgaris).