// SPECIES PROFILE · PERENNIAL · NATIVE

Canadian lousewort

Pedicularis canadensis

Canadian lousewort (Pedicularis canadensis) is a perennial in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2b–11b. Mature size 1"–20". Blooms Apr–May.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to 40 U.S. states, including AL, AR, CO, CT, DC, DE…
USDA hardiness: Zones 2b–11b
Mature size: 1"–20"
Sun: Full shade
Water: Medium
Bloom: Apr–May
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Canadian lousewort (Pedicularis canadensis) — *Pedicularis canadensis* — Canadian lousewort. Photo by Eric Hunt via Wikimedia Commons (CC BY-SA 4.0).

Field Notes

[ growing · ecology · siting · care ]

Canadian lousewort (Pedicularis canadensis) is a perennial in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2b–11b. Mature size 1"–20". Blooms Apr–May.

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, canadian lousewort pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), False Sunflower (Heliopsis helianthoides), Gray Goldenrod (Solidago nemoralis), Lady Fern (Athyrium filix-femina).