Howell’s Microseris – Oregon Conservation Strategy

Photo Credit: Oregon Department of Agriculture

Overview

Species Common Name Howell's Microseris
Species Scientific Name Microseris howellii
State Listing Status Threatened

Ecoregions

Klamath Mountains

The Klamath Mountains ecoregion covers much of southwestern Oregon, including the Umpqua Mountains, Siskiyou Mountains, and interior valleys and foothills between these and the Cascade Range. The Rogue watershed has the largest population of any coastal watershed in Oregon (Jackson County, Josephine County, and a portion of Curry County). Several popular and scenic rivers run …

Special needs

Howell's microseris occurs on slopes or flat ground with varying exposures. This species is found in rocky serpentine soils at approximately 980-3280 feet.

Limiting factors

Prospecting and nickel strip mining are serious threats to Howell's microseris. Grazing and excavation at gravel quarries are among other conservation concerns.

Data gaps

Improve understanding of reproductive biology. Conduct pollination studies. Evaluate genetics. Develop propagation and transplanting protocols.

Conservation actions

Minimize impacts from mining.

Key reference or plan

Oregon Department of Agriculture Plant Conservation