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Blue Toadflax
Scrophulariaceae
Linaria canadensis


Thunder
Thunder
Type Categories Useful Parts

Herb

Scrophulariaceae Family

Linaria Genus
Other Names for this Plant

Old-Field Toadflax, Canada Toaflax


Location

Native to North America from Nova Scotia to Florida, west to Minnesota, Oregon, Texas and California

Physical Description
Blue toadflax has small flowers on top of slender stalks. The small flowers and wispy foliage make the plant easy to overlook, but it can be quite abundant in its preferred habitat of sunny, sandy areas. In early summer, many sandy roadsides have a haze of blue from blue toadflax in bloom.

It is an annual or biennial plant growing to 25-80 cm tall, with slender, erect flowering stems. The leaves are slender, 15-30 mm long and 1-2.5 mm broad. The flowers are purple to off-white, 10-15 mm long, appearing from mid spring to late summer. It typically grows in bare areas and grassland




Compare Species
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Scrophulariaceae
Lamiales
Lamiales
Tounge Order (Mints)
Euasterids I
Euasterids I
Real Stars Group One
Asteridae
Asteridae
Class of Stars (Daisies)
Core Eudicots
Core Eudicots
Main, Real, Two First-Leaves (Dicots)
Eudicots
Eudicots
Real, Two First-Leaves (Dicots)
Mesangiospermae
Mesangiospermae
Half Capsule Seed Division
Magnoliophyta
Magnoliophyta
Magnolia Division
Spermatophytes
Spermatophytes
Seed Plants
Euphyllophytina
Real Land Plants
Polysporangiates
Multiple Spore Sub-Kingdom
Stomatophytes
Stomatophytes
Air Pores Sub-Kingdom
Embryophytes
Embryophytes
Multicellular Land Plants
Streptobionta
Streptobionta
Multicellular Plants
Plantae
Plantae
Plants
Eukaryota
Eukaryota
Cells with a Nucleus


General Information

In Ohio this plant is listed as Endangered

Medicinal Uses: The leaves are antihemorrhoidal, diuretic, and laxative. They are applied externally in the treatment of hemorrhoids

Cultivation: 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

Propagation: Seed - sow spring in situ. An autumn sowing can also be made in areas with mild winters. This sowing will produce larger plants





Blue Toadflax




Blue Toadflax


Comment: Blue Toadflax, Linaria canadensis

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