Blue Toadflax

Nuttallanthus canadensis

Ecology & Conservation

Proximity Score: 2
Native Status: ✅ Outaouais ❌ Ottawa ✅ QC ✅ ON
Closest Direction: SE
CEC Eco-Regions: 8 – Eastern Temperate Forests, 8.1 – Mixed Wood Plains, 8.1.7 – Northeastern Coastal Zone
Rarity Notes: Globally secure (G5) but nationally rare in Canada (N2). Critically imperiled in Ontario (S1) and imperiled in Quebec (S2). Not listed under SARA or COSEWIC. Quebec specimens are clustered in the southern St. Lawrence Lowlands, with most collections from the Huntingdon-Farnham-Napierville corridor, suggesting a highly restricted Canadian range at the northern limit of distribution.
S22 S26 S54
Rarity Ranks: QC S2 – Imperiled, ON S1 – Critically Imperiled
Migration: Stable
Ecological Context: Pioneer of dry, open, sandy or rocky barren ground. Found in oak-sassafras savannas, jack pine plains, sand blowouts, dried lakebeds, and disturbed sandy sites. In Quebec, herbarium specimens are concentrated in the St. Lawrence Lowlands, particularly from dry peatlands (tourbières sèches) and sandy agricultural margins near Huntingdon, Farnham, and the Châteauguay region.
S7 S48 S54

Category: Antihaemorrhoidal, Diuretic, Laxative
S29
Notes: Leaves are antihaemorrhoidal, diuretic, and laxative. Applied externally in the treatment of haemorrhoids. Medicinal rating 1 of 5 (minor use).
S29

❌ Not Edible

Foraging Notes: No edible uses recorded. PFAF rates edibility 0 of 5 with no known edible parts.
S29