Plantae → Monocotyledoneae → Poaceae
Oregon Semaphore Grass
Pleuropogon oregonus
Chase · CC-BY
ORBIC List 1S1SOC
State Rank
SX
S1
S2
S3
S4
S5
S1 — Critically Imperiled in Oregon
G1
Global Rank
Critically Imperiled
SOC
Federal ESA
Species of Concern
List 1
ORBIC
Endangered in Oregon
What do these ranks mean? ORBIC's ranking definitions or NatureServe's conservation status categories
Ecoregions
Blue Mountains
N. Basin & Range
East Cascades
Counties
Lake · Union
Other states / provinces
Not found outside Oregon
Oregon Endemic: Found only in Oregon
Range map
Certain
Possible
Extirpated
Absent