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Mounded Prairie/Vernal Pools Oregon/Washington BLM

U.S. DEPARTMENT OF THE INTERIOR

BUREAU OF LAND MANAGEMENT

Mounded Prairie/Vernal Pools

Mounded Prairie/Vernal Pools

Mounded Prairie/Vernal Pools

Fairy Shrimp

Fairy shrimp
(Branchinecta lynchi)

The mounded prairie habitat is a unique plant community. A thin layer of granular rock fragments covers impermeable volcanic rock which allows water to collect seasonally in depressions creating what is known as vernal pools. The Table Rock vernal pools are a rare environment that supports a federally listed threatened species of fairy shrimp and a state endangered plant called the dwarf wooly meadowfoam. This plant is endemic to the Table Rocks, meaning it is found nowhere else in the world!

Cascade Downingia

Cascade Downingia
Downingia yina

Cow's Udder Clover

Cow's Udder Clover
Trifolium depauperatum

Dwarf Wooly Meadowfoam

Dwarf Wooly Meadowfoam
Limnanthes floccosa ssp. pumila

Goldfields

Goldfields
Lasthenia californica

Popcorn Flower

Popcorn Flower
Plagiobothyrus sp.

Wild Onion

Wild Onion
Allium sp.

Return to Plant Communities of the Table Rocks