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Common Name: Blue Toadflax
Linaria canadensis is a Annual/Biennial up to 0.60 metres tall.
It is harvested from the wild for local use as a medicine..
N. America - Nova Scotia to Florida, west to Minnesota, Oregon, Texas and California
Dry sterile or sandy soils, often a weed in sandy loams[
A very drought resistant plant once established, it thrives in a poor gravelly soil[
]. Nitrogen-rich soils produce excessive leaf growth at the expense of flowering[
]. Prefers a sunny position[
The leaves are antihaemorrhoidal, diuretic and laxative[
]. They are applied externally in the treatment of haemorrhoids[
Seed - sow spring in situ[
]. An autumn sowing can also be made in areas with mild winters[
]. This sowing will produce larger plants.