Sessile-fruited arrowhead
Sagittaria rigida
Washington State Classification
Monitor List
This plant is on the monitor list - it is not a listed noxious weed in Washington.
Quick Reference
Identification
Growth Habit
This aquatic, herbaceous plant grows partially or completely submerged. Roots need to be attached to substrate at the bottom of the water, as it does not typically float on its own in the water column.
Leaves
Heart, arrow, or lance shaped green leaves that can emerge from the water surface on a short stalk.
Flowers
Three, diamond-shaped petals coming out from a light or bright green center. Will grow single or small bunches of flowers at the ends of stalks that emerge from the water surface.
Impact
This plant is on the monitor list - it is not a listed noxious weed in Washington. Please contact its sponsor Wesley Glisson to report locations or for more information.
Ecology & Spread
Habitat
Fully or partially submerged in lakes, ponds, wetlands, and slow-moving bodies of water. Can survive in saline or brakish water.
Spread Mechanisms
Reproduction
Seed and vegetative fragments floating to new waterbodies.
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