American Water Willow
Lance Leaf Water Willow - Loose Flower Water Willow - Coastal Plain Water Willow
Justicia americana, Var. lanceolata, ovata - (linnaeus) Vahl
Acanthaceae (Acanthus) Family

Plant is an upright or trailing, branching aquatic perennial from a rhizome. Its preferred habitat is streams, lakes and ditches with standing water. Distribution is throughout the Escambia region.

Leaves are opposite on the stem; mostly without leaf stalks; linear to lance-like or may be egg-shaped.

Flowers are pale purple to almost white with purple spotting in the throat and lower lip; bisexual; irregular in shape. Calyx is five lobed. Corolla is two-lipped with the upper lip notched and the lower lip three-lobed. Most flowers appear on the same side of the flower spike; arising from the leaf axil. Flowering occurs in the summer.

Fruit is a capsule.

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