Select a species from the list below.
Threatened and Endangered Plant Species List for Oregon:
Abronia umbellata ssp. breviflora (Pink sandverbena)
Amsinckia carinata (Malheur Valley fiddleneck)
Arabis macdonaldiana (Red Mountain rockcress)
Artemisia campestris var. wormskioldii (Northern wormwood)
Astragalus applegatei (Applegate's milk-vetch)
Astragalus collinus var. laurentii (Laurence's milk-vetch)
Astragalus cusickii var. sterilis (Sterile milk-vetch)
Astragalus diaphanus var. diurnus (South John Day milk-vetch)
Astragalus mulfordiae (Mulford's milk-vetch)
Astragalus peckii (Peck's milk-vetch)
Astragalus tyghensis (Tygh Valley milk-vetch)
Botrychium pumicola (Pumice grape-fern)
Calochortus coxii (Cox's mariposa-lily)
Calochortus howellii (Howell's mariposa-lily)
Calochortus indecorus (Sexton Mt. mariposa-lily)
Calochortus umpquaensis (Umpqua mariposa-lily)
Castilleja levisecta (Golden paintbrush)
Cordylanthus maritimus ssp. palustris (Pt. Reyes bird's-beak)
Delphinium leucophaeum (White rock larkspur)
Delphinium pavonaceum (Peacock larkspur)
Erigeron decumbens var. decumbens (Willamette Valley daisy)
Eriogonum chrysops (Golden buckwheat)
Eriogonum crosbyae (Crosby's buckwheat)
Erythronium elegans (Coast Range fawn-lily)
Eucephalus vialis (Wayside aster)
Fritillaria gentneri (Gentner's fritillaria)
Gratiola heterosepala (Boggs Lake hedge-hyssop)
Hackelia cronquistii (Cronquist's stickseed)
Hastingsia bracteosa var. atropurpurea (Purple flowered rush-lily)
Hastingsia bracteosa var. bracteosa (Large-flowered rush-lily)
Howellia aquatilis (Howellia)
Ivesia rhypara var. rhypara (Grimy ivesia)
Lepidium davisii (Davis' peppergrass)
Lilium occidentale (Western lily)
Limnanthes floccosa ssp. grandiflora (Big-flowered wooly meadow-foam)
Limnanthes floccosa ssp. pumila (Dwarf wooly meadow-foam)
Lomatium bradshawii (Bradshaw's lomatium)
Lomatium cookii (Agate Desert lomatium)
Lomatium erythrocarpum (Red-fruited lomatium)
Lomatium greenmanii (Greenman's lomatium)
Lupinus lepidus var. cusickii (Cusick's lupine)
Lupinus sulphureus ssp. kincaidii (Kincaid's lupine)
Mentzelia mollis (Smooth mentzelia)
Mentzelia packardiae (Packard's mentzelia)
Microseris howellii (Howell's microseris)
Mirabilis macfarlanei (Macfarlane's four-o'clock)
Oenothera wolfii (Wolf's evening-primrose)
Phacelia argentea (Silvery phacelia)
Plagiobothrys hirtus (Rough popcorn flower)
Plagiobothrys lamprocarpus (Shiny-fruited popcorn flower)
Pleuropogon oregonus (Oregon semaphore grass)
Pyrrocoma radiata (Snake River goldenweed)
Ranunculus triternatus (Dalles Mt. buttercup)
Sericocarpus rigidus (White-topped aster)
Sidalcea nelsoniana (Nelson's sidalcea)
Silene douglasii var. oraria (Cascade Head catchfly)
Silene spaldingii (Spalding's campion)
Stephanomeria malheurensis (Malheur wire-lettuce)
Thelypodium eucosmum (Arrow-leaf thelypody)
Thelypodium howellii ssp. spectabilis (Howell's spectacular thelypody)
Trifolium owyheense (Owyhee clover)
HOW TO SEARCH
Select a species from the pull-down list;
click on the "Get Field Guide Information" button.
RESULTS
This guide provides information on the identification, habitat, and management of Oregon's plant
species of special concern, along with references, illustrations and photographs.
Sixty-one plants are currently included in this guide, which covers plants that are considered threatened or endangered by the Oregon Department of Agriculture or the US Fish and Wildlife Service.
ADDITONAL INFORMATION
If you need help with any of the botanical terms used on these pages, please refer to the glossary .