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Data Sources
Topo
Ecoregions
Public Lands
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BASEMAPS
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WEATHER
Umatilla Plateau
Ecoregion
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Columbia Plateau
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The nearly level to rolling, treeless Umatilla Plateau ecoregion is underlain by basalt and veneered with loess deposits. Areas with thick loess deposits are farmed for dry land winter wheat, or irrigated alfalfa and barley. In contrast, rangeland dominates more rugged areas where loess deposits are thinner or nonexistent, such as in neighboring Ecoregions 10k and 10n. Mean annual precipitation is 9 to 15 inches and increases with increasing elevation. In uncultivated areas, moisture levels are generally high enough to support grasslands of bluebunch wheatgrass and Idaho fescue without associated sagebrush, which is more common in 10e.
—
EPA
Plants
Elymus spicatus
SPECIES
106
Observations
JAN - DEC
Velvet Lupine
Lupinus leucophyllus (species)
51
Observations
JAN - DEC
Common Mullein
Verbascum thapsus (species),
“Great Mullein”, “Mullein”, “Mullen”
45
Observations
JAN - DEC
Lupinus arbustus
SPECIES ·
“Longspur Lupine”
32
Observations
JAN - DEC
Rock Onion
Allium macrum (species)
25
Observations
JAN - DEC
See All
Animals
Pacific Gopher Snake
Pituophis catenifer (species),
“Henry Snake”, “Coast Gopher Snake”, “Bull Snake”, “Churchill's Bull Snake”, “Oregon Bull Snake”, “Pacific Pine Snake”, “Western Bull Snake”, “Western Gopher Snake”, “Sonoran Gopher Snake”, “Western Pine Snake”, “Blow Snake”, “Yellow Gopher Snake”, “Gophersnake”
2
Observations
JAN - DEC
Lithobates catesbeianus
SPECIES ·
“American Bullfrog”, “Bullfrog”, “Common Bullfrog”
1
Observation
JAN - DEC
Fox Squirrel
Sciurus niger (species),
“Eastern Fox Squirrel”, “Bryant's Fox Squirrel”, “Delmarva Fox Squirrel”
1
Observation
JAN - DEC
Coyote
Canis latrans (species),
“Prairie Wolf”, “American Jackal”, “Brush Wolf”
1
Observation
JAN - DEC
Birds
Western Meadowlark
Sturnella neglecta (species)
3,560
Observations
JAN - DEC
Common Starling
Sturnus vulgaris (species),
“Starling”, “European Starling”
3,295
Observations
JAN - DEC
Red-Tailed Hawk
Buteo jamaicensis (species),
“Chickenhawk”
3,151
Observations
JAN - DEC
Black-Billed Magpie
Pica hudsonia (species)
2,530
Observations
JAN - DEC
American Robin
Turdus migratorius (species)
2,525
Observations
JAN - DEC
See All
Insects
Heliothodes diminutivus
SPECIES
4
Observations
JAN - DEC
Glaucopsyche piasus
SPECIES ·
“Arrowhead Blue”
2
Observations
JAN - DEC
Bombus griseocollis
SPECIES ·
“Brown-Belted Bumblebee”
2
Observations
JAN - DEC
Bombus centralis
SPECIES ·
“Central Bumble Bee”
2
Observations
JAN - DEC
Bombus huntii
SPECIES ·
“Hunt Bumble Bee”
2
Observations
JAN - DEC
See All
Taxonomy
Region
49
Ecoregion
Classified As
Ecoregion
Umatilla Plateau
Umatilla Plateau
Umatilla Plateau
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