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Scientific Name	Common Name	Heritage Global Rank	Heritage State Rank	Federal Status	State Status	Heritage List	Oregon County Distribution	Oregon Ecoregion Distribution	Other States
Abronia latifolia	Yellow sandverbena	G5	S3			4	Clatsop, Coos, Curry, Douglas, Lane, Lincoln, Tillamook	CR	CA, WA
Abronia turbinata	Trans montane abronia	G5	S1			2	Harney, Malheur	BR	CA, NV
Abronia umbellata ssp. breviflora	Pink sandverbena	G4G5T2	S1	SOC	LE	1	Clatsop, Coos, Curry, Douglas, Lane, Lincoln, Tillamook	CR	CA
Achnatherum hendersonii	Henderson ricegrass	G3	S2	SOC	C	1	Crook, Sherman, Wasco	BM, CB	WA
Achnatherum speciosum	Desert needlegrass	G5	S2			2	Harney	BR	CA, NV +
Achnatherum wallowaensis	Wallowa ricegrass	G2G3	S2S3	SOC		1	Crook, Wallowa	BM
Achnatherum webberi	Webber needlegrass	G4	S3			4	Harney, Lake, Malheur	BR	CA, ID, NV +
Adiantum jordanii	California maiden-hair	G4G5	S2			2	Coos, Curry, Douglas, Josephine	CR, KM	CA
Agastache cusickii	Cusick's giant-hyssop	G3G4	S2			2	Harney, Lake, Malheur	BR	ID, MT, NV
Agoseris elata	Tall agoseris	G4	S1			2	Clackamas, Deschutes, Hood River, Jefferson, Wasco	EC, WC	CA,WA
Agrostis hendersonii	Henderson's bentgrass	G1Q	SH	SOC		1-ex	Jackson	KM	CA
Agrostis howellii	Howell's bentgrass	G2	S2	SOC	C	1	Hood River, Linn, Multnomah	WC, WV
Allenrolfea occidentalis	Iodine bush	G4	S2			2	Harney, Malheur	BR	CA, ID, NV+
Allium bisceptrum	Two-stemmed onion	G4G5	S4			4	Crook, Deschutes, Grant, Harney, Klamath, Lake, Malheur	BM, BR	CA, ID+
Allium bolanderi var. bolanderi	Bolander onion	G4T3?	SNR			3	Curry, Jackson?, Josephine	KM	CA
Allium dictuon	Blue Mt. onion	G2	S2	SOC		1	Wallowa	BM	WA
Allium douglasii var. nevii	Nevius' onion	G4G5T3T4	S3?			3	Hood River, Wasco	EC	WA
Allium geyeri var. geyeri	Geyer's onion	G4G5T4	S1			2	Wallowa	BM	ID, NV, WA+
Allium peninsulare	Peninsular onion	G5	SH			2-ex	Jackson	KM?, WC?	CA
Allium robinsonii	Robinson's onion	G3	SH	SOC		2-ex	Gilliam, Morrow, Sherman, Umatilla	CB	WA
Allium sanbornii var. sanbornii	Sanborn's onion	G3T3	SNR			3	Jackson	KM	CA
Allium tolmiei var. platyphyllum	Flat-leaved tolmie's onion	G4T3Q	S3?			3	Baker, Grant, Umatilla, Union, Wallowa	BM	ID
Allium unifolium	One-leaved onion	G4G5	S4			4	Polk, Yamhill	WV	CA
Ammannia robusta	An ammannia	G5	SNR			3	Benton, Multnomah, Sherman, Wasco	CB, WV	CA, ID, NV, WA +
Amsinckia carinata	Malheur Valley fiddleneck	G2	S2	SOC	LT	1	Malheur	SP
Androsace elongata ssp. acuta	Long-stemmed androsace	G5?T3T4	SH			2-ex	Jackson	KM	CA
Anemone multifida var. tetonensis	Cliff anemone	G5T4T5	SNR			3	Union, Wallowa	BM	ID, NV+
Anemone oregana var. felix	Bog anemone	G4T3	S1	SOC		2	Lincoln, Linn, Polk, Tillamook, Yamhill	CR, WC	WA
Antennaria aromatica	Aromatic antennaria	G4	S3			4	Wallowa	BM	MT, WY
Antirrhinum kingii	King snapdragon	G4	SNR			3	Harney, Malheur	BR	CA, NV+
Arabis davidsonii	Davidson's rockcress	G4G5Q	SNR			3	Baker, Wallowa	BM	CA+
Arabis furcata	Cascade rockcress	G4	S3			4	Clackamas?, Hood River, Jefferson, Marion?, Wasco	EC, WC	WA
Arabis hastatula	Hells Canyon rockcress	G2	S2	SOC		1	Linn, Wallowa	BM, WC
Arabis koehleri var. koehleri	Koehler's rockcress	G3T1	S1	SOC	C	1	Douglas	KM
Arabis koehleri var. stipitata	Koehler's stipitate rockcress	G3T3	S3			4	Curry, Jackson, Josephine	KM	CA
Arabis macdonaldiana	Red Mt. rockcress	G2	S1	LE		1	Curry, Josephine	KM	CA
Arabis modesta	Rogue Canyon rockcress	G3Q	S2	SOC		2	Jackson, Josephine	KM	CA
Arabis sparsiflora var. atrorubens	Sickle-pod rockcress	G5T3	S2			2	Hood River, Multnomah, Wasco	EC, WC	WA
Arabis suffrutescens var. horizontalis	Crater Lake rockcress	G5T1	S1	SOC	C	1	Jackson?, Klamath	WC
Arctostaphylos hispidula	Hairy manzanita	G3	S2	SOC		2	Curry, Douglas, Josephine	CR, KM	CA
Argemone munita	Prickly-poppy	G4	S2			2	Harney, Malheur	BR	NV
Arnica viscosa	Shasta arnica	G4	S2			2	Deschutes, Douglas, Klamath	WC	CA
Artemisia arbuscula ssp. longicaulis	Lahontan sagebrush	G5T5	SNR			3	Crook?, Harney, Jefferson?, Klamath, Lake, Malheur	BM?, BR, EC?	CA, NV
Artemisia campestris var. wormskioldii	Northern wormwood	G5T1	SX	C	LE	1-ex	Multnomah, Sherman, Umatilla, Wasco	CB, WC	WA
Artemisia ludoviciana ssp. estesii	Estes' artemisia	G5T2	S2	SOC		1	Crook, Deschutes, Jefferson	BM, EC
Artemisia packardiae	Packard's artemisia	G3	S3			4	Malheur	BR	ID, NV
Artemisia papposa	Owyhee sagebrush	G4	S2			2	Malheur	BR	ID, NV
Artemisia pycnocephala	Coastal sagewort	G4G5	S1			2	Coos, Curry	CR	CA
Asarum wagneri	Green-flowered wild-ginger	G5T3	S3		C	4	Douglas, Jackson, Klamath, Lane	EC, WC
Asplenium septentrionale	Grass-fern	G4G5	S1			2	Douglas, Jackson, Klamath	WC	CA
Asplenium trichomanes-ramosum	Green spleenwort	G4	S1			2	Baker, Wallowa	BM	CA, ID, NV, WA+
Aster breweri	Brewer's aster	G4	S1?			2	Josephine	KM	CA, NV
Aster curtus	White-topped aster	G3	S2	SOC	LT	1	Clackamas, Lane, Linn, Marion, Multnomah?	WV	WA, BC
Aster gormanii	Gorman's aster	G3	S3			1	Clackamas, Jefferson, Linn, Marion	WC
Aster sibiricus var. meritus	Arctic aster	G5T5	SNR			3	Wallowa	BM	ID, WA +
Aster vialis	Wayside aster	G3	S3	SOC	LT	1	Douglas, Jackson, Josephine, Lane, Linn	KM, WC, WV	CA
Astragalus alvordensis	Alvord milk-vetch	G4	S4			4	Harney, Malheur	BR	NV
Astragalus applegatei	Applegate's milk-vetch	G1	S1	LE	LE	1	Klamath	EC
Astragalus atratus var. owyheensis	Owyhee milk-vetch	G4G5T3	S3			4	Baker, Malheur	BM, SP	ID, NV
Astragalus californicus	California milk-vetch	G3	S1			2	Jackson	KM	CA
Astragalus calycosus	King's rattleweed	G5	S1			2	Malheur	BR	CA, ID, NV+
Astragalus collinus var. laurentii	Laurence's milk-vetch	G5T1	S1	SOC	LT	1	Gilliam, Morrow, Sherman, Umatilla	CB
Astragalus conjunctus var. rickardii	Rickard's milk-vetch	G4T3?	SNR			3	Wasco	CB	WA
Astragalus cusickii var. sterilis	Sterile milk-vetch	G5T2	S2		LT	1	Malheur	BR	ID
Astragalus diaphanus var. diurnus	South John Day milk-vetch	G3G4T2Q	S2		LT	1	Grant	BM
Astragalus gambelianus	Gambel milk-vetch	G5	SNR			3	Jackson	KM	CA
Astragalus geyeri var. geyeri	Geyer's milk-vetch	G4?T4?	S2?			2	Harney, Malheur, Umatilla	BR, CB	CA, ID, NV, WA +
Astragalus hoodianus	Hood River milk-vetch	G4	S3			2	Hood River, Wasco	CB, EC	WA
Astragalus mulfordiae	Mulford's milk-vetch	G2	S1	SOC	LE	1	Malheur	BR, SP	ID
Astragalus peckii	Peck's milk-vetch	G3	S3		LT	1	Deschutes, Klamath	BM, EC, WC
Astragalus platytropis	Broad-keeled milk-vetch	G5	SNR			3	Malheur	BR	CA, ID, NV, UT
Astragalus reventiformis	Long-leaved milk-vetch	G5	SNR			3	Sherman	CB	WA
Astragalus robbinsii var. alpiniformis	Wallowa milk-vetch	G5T3	S3			4	Wallowa	BM
Astragalus sclerocarpus	Stalked-pod milk-vetch	G5	S4			4	Gilliam, Morrow, Sherman?, Umatilla, Wasco	CB	WA +
Astragalus succumbens	Columbia milk-vetch	G4G5	S4			4	Gilliam, Morrow, Umatilla, Wasco	CB	WA
Astragalus tegetarioides	Bastard kentrophyta	G3	S3	SOC	C	1	Crook, Harney	BM, BR	CA
Astragalus tetrapterus	Four-wing milk-vetch	G4G5	S3			4	Harney, Klamath, Lake, Malheur	BR, EC	NV +
Astragalus tyghensis	Tygh Valley milk-vetch	G2	S2		LT	1	Wasco	CB
Astragalus umbraticus	Woodland milk-vetch	G4	S3			4	Curry, Douglas, Josephine, Lane	CR, KM, WC	CA
Atriplex leucophylla	Beach saltbush	G4G5	SNR			3	Coos	CR	CA +
Atriplex powellii	Powell's saltbush	G4	SNR			3	Malheur	BR	AZ +
Baccharis douglasii	Marsh baccharis	G5	S1?			2	Curry	CR	CA
Balsamorhiza hookeri var. idahoensis	Hooker's balsamroot	G5T3?	SNR			3	Baker	BM	ID
Balsamorhiza hookeri var. lanata	Woolly balsamroot	G5T2Q	S1			1	Jackson	KM	CA
Balsamorhiza rosea	Rosy balsamroot	G4G5	S1			2	Umatilla	CB	WA
Balsamorhiza sericea	Silky balsamroot	G4Q	S3			4	Josephine	KM	CA
Bensoniella oregana	Bensonia	G3	S3	SOC	C	1	Coos, Curry, Douglas, Josephine	CR, KM	CA
Bergia texana	Texas bergia	G5	S3?			4	Columbia?, Malheur, Multnomah	BR, WV	CA, NV, WA +
Bolandra oregana	Oregon bolandra	G3	S3		C	4	Baker, Clackamas, Hood River, Multnomah, Umatilla, Union, Wallowa	BM, WC, WV	ID, WA
Botrychium ascendens	Upward-lobed moonwort	G2G3	S2	SOC	C	1	Baker, Grant, Wallowa, Wheeler	BM	CA ID, NV, WA +
Botrychium campestre	Prairie moonwort	G3G4	S1	SOC		2	Wallowa	BM	AB, SK, ND +
Botrychium crenulatum	Crenulate grape-fern	G3	S2	SOC	C	1	Baker, Crook, Douglas?, Grant, Harney, Jackson, Lake, Union, Wallowa, Wheeler	BM, BR, KM, WC?	AZ, CA, ID, MT, NV, UT, WA, WY
Botrychium hesperium	Western moonwort	G3G4	SNR			3	Umatilla, Union, Wallowa	BM	WA +
Botrychium lanceolatum	Lance-leaved grape-fern	G5	S3			4	Baker, Grant, Harney, Hood River, Klamath, Umatilla, Union, Wallowa	BM, BR, WC	WA, ID +
Botrychium lineare	Skinny moonwort	G1	S1	C		1	Wallowa	BM	CA, CO, ID, MT, NB, QC
Botrychium lunaria	Moonwort	G5	S2			2	Grant?, Harney, Union, Wallowa	BM, BR	NV, WA +
Botrychium minganense	Gray moonwort	G4	S3			4	Baker, Crook, Douglas, Grant, Harney, Hood River, Linn, Morrow, Umatilla, Union, Wallowa, Wasco, Wheeler	BM, BR, EC, WC	CA, ID, WA +
Botrychium montanum	Mountain grapefern	G3	S2	SOC		2	Baker, Crook, Grant, Hood River, Linn, Marion, Union, Wallowa, Wasco, Wheeler	BM, EC, WC	CA, MT, WA, BC +
Botrychium paradoxum	Twin-spike moonwort	G2	S1	SOC	C	1	Baker, Grant, Union, Wallowa, Wheeler	BM	MT, UT, WA, AB, BC, SK
Botrychium pedunculosum	Stalked moonwort	G2G3	S1	SOC	C	1	Grant, Union, Wallowa	BM	MT, WA, AB, BC, SK
Botrychium pinnatum	Pinnate grape-fern	G4?	S3			4	Baker, Grant, Harney, Umatilla, Union, Wallowa, Wasco, Wheeler	BM, BR, EC	CA, WA, ID +
Botrychium pumicola	Pumice grape-fern	G3	S3		LT	1	Deschutes, Klamath, Lake	EC, WC	CA
Brodiaea californica	California brodiaea	G4?	SNR			3	Jackson	KM	CA
Brodiaea terrestris	Dwarf brodiaea	G4G5	S2			2	Coos, Curry	CR	CA
Bulbostylis capillaris	Densetuft hairsedge	G5	SH			2-ex	Josephine	KM	CA +
Bupleurum americanum	Bupleurum	G5	S1			2	Baker, Wallowa	BM	ID +
Calamagrostis breweri	Brewer reedgrass	G3	S2			2	Clackamas, Hood River, Jefferson, Linn, Marion	WC	CA
Callitriche fassettii	The Dalles water-starwort	GHQ	SH			1-X	Wasco	CB?, EC?
Callitriche marginata	Winged water-starwort	G4	S2?			3	Jackson, Josephine, Wasco	CB, KM	BC, CA
Calochortus coxii	Cox's mariposa lily	G1	S1	SOC	LE	1	Douglas	KM
Calochortus greenei	Greene's mariposa lily	G2	S2	SOC	C	1	Jackson, Klamath	EC, KM	CA
Calochortus howellii	Howell's mariposa lily	G3	S3	SOC	LT	1	Curry, Josephine	KM
Calochortus indecorus	Sexton Mt. mariposa-lily	GX	SX		LE	1-X	Josephine	KM
Calochortus longebarbatus var. longebarbatus	Long-bearded mariposa-lily	G4T3	S3			4	Klamath, Lake, Umatilla, Union, Wasco	BM, EC	CA, WA
Calochortus longebarbatus var. peckii	Peck's mariposa-lily	G4T3	S3	SOC	C	1	Crook, Grant, Harney, Wheeler	BM
Calochortus macrocarpus var. maculosus	Green-band mariposa-lily	G5T2	S2	SOC		1	Wallowa	BM	ID, WA
Calochortus monophyllus	One-leaved calochortus	G3G4	S1			2	Jackson, Klamath	EC, WC	CA
Calochortus nitidus	Broad-fruit mariposa-lily	G3	S1	SOC		2	Jackson, Wallowa	BM, KM	ID
Calochortus nudus	Shasta star-tulip	G3G4	S2			2	Jackson	KM	CA
Calochortus persistens	Siskiyou mariposa lily	G1	S1	C		1	Jackson	KM	CA
Calochortus umpquaensis	Umpqua mariposa-lily	G1	S1	SOC	LE	1	Douglas, Jackson, Josephine	KM, WC
Camassia howellii	Howell's camassia	G2	S2		C	1	Jackson, Josephine	KM
Camissonia boothii ssp. boothii	Booth evening-primrose	G5T4	SNR			3	Baker, Malheur, Wallowa?	BM, BR	CA, ID, NV, WA, AZ
Camissonia graciliflora	Slender-flowered evening-primrose	G4?	S2			2	Jackson, Josephine	KM	CA
Camissonia ovata	Golden eggs	G3G4	SNR			3	Douglas, Josephine	KM	CA
Camissonia palmeri	Palmer's evening-primrose	G3?	SNR			3	Malheur	SP	CA, ID, NV
Camissonia parvula	Lewis' River suncup	G5	SNR			3	Harney?, Lake, Malheur	BR	CA, ID, NV, WA +
Camissonia pusilla	Washoe suncup	G3G4	SNR			3	Malheur	BR	CA, ID, NV, UT
Camissonia pygmaea	Dwarf evening-primrose	G3	S1	SOC	C	1	Gilliam, Grant, Harney, Umatilla?, Wasco, Wheeler	BM, BR, CB	WA
Cardamine nuttallii var. covilleana	Coville's toothwort	G5T3?	SNR			3	Josephine	KM	CA
Cardamine nuttallii var. dissecta	Dissected toothwort	G5T4T5	SNR			3	Coos, Jackson, Josephine, Klamath, Lane	CR, KM, WC	CA, WA
Cardamine nuttallii var. gemmata	Purple toothwort	G5T3	S3		C	4	Curry, Josephine	KM	CA
Cardamine pattersonii	Saddle Mt. bittercress	G2	S2	SOC	C	1	Clatsop, Tillamook	CR
Carex abrupta	Abrupt-beaked sedge	G5	S1			2	Harney, Klamath, Wallowa	BM, BR, WC	CA, NV +
Carex atherodes	Awned sedge	G5	S2?			3	Harney, Klamath, Lake	BR, EC	CA, ID, NV, WA +
Carex atrosquama	Blackened sedge	G4?	S1			2	Douglas, Harney, Wallowa	BM, BR, WC	ID, WA +
Carex barbarae	Santa Barbara sedge	G4G5Q	S3?			3	Curry, Douglas, Jackson, Josephine	CR, KM	CA
Carex bebbii	Bebb's sedge	G5	S2			2	Baker, Union, Wallowa	BM	WA +
Carex brevicaulis	Short-stemmed sedge	G5	S2			2	Clatsop, Coos, Curry, Douglas, Lincoln, Tillamook	CR	WA, CA
Carex brunnescens ssp. brunnescens	Brownish sedge	G5T5	S1			2	Clackamas	WC	WA +
Carex capillaris	Capillary sedge	G5	S2			2	Harney, Wallowa	BM, BR	ID, NV +
Carex capitata	Capitate sedge	G5	S2			2	Deschutes, Harney, Jackson, Klamath, Lake	BR, EC, WC	ID, NV, WA +
Carex comosa	Bristly sedge	G5	SH			2-ex	Columbia?, Josephine, Multnomah	KM, WV	CA, ID, WA +
Carex concinna	Low northern sedge	G4G5	S3			2	Grant, Wallowa	BM	ID, WA +
Carex cordillerana	Cordilleran sedge	G5	S2			2	Baker, Harney, Morrow, Umatilla, Union, Wallowa	BM, BR	AB
Carex crawfordii	Crawford's sedge	G5	S1			2	Curry, Jackson	CR, WC	ID, WA +
Carex diandra	Lesser panicled sedge	G5	S1			2	Lake	EC	CA +
Carex dioica var. gynocrates	Yellow bog sedge	G5	S1			2	Wallowa	BM	NV +
Carex eleocharis	Involute-leaved sedge	G5	SH			2-ex	Baker, Klamath	BM, EC	CA, ID, NV, WA +
Carex epapillosa	Sedge	GNR	SNR			3	Douglas, Grant, Harney, Klamath, Wallowa	BM, BR, WC	CA, ID, NV, WA +
Carex gynodynama	Hairy sedge	G4G5	S2			2	Coos, Curry, Douglas, Lane	CR, KM, WV	CA
Carex haydeniana	Hayden's sedge	G4G5	S4			4	Baker, Grant, Harney, Wallowa	BM, BR	CA, ID, NV, WA +
Carex hystericina	Porcupine sedge	G5	S2			2	Baker, Crook, Deschutes, Gilliam, Grant, Jefferson, Malheur, Wallowa, Wasco, Wheeler	BM, BR, CB, SP	CA, ID, WA +
Carex idahoa	Idaho sedge	G2Q	S1	SOC		1	Grant	BM	ID, CA +
Carex integra	Smooth beaked sedge	G5	S3			4	Deschutes, Jackson, Klamath, Lake, Lane, Linn	EC, WC	CA, NV
Carex interior	Inland sedge	G5	S3			4	Crook, Grant, Jackson, Josephine, Lake, Union	BM, EC, KM, WC	CA, ID, WA +
Carex lasiocarpa var. americana	Slender sedge	G5T5	S2			2	Deschutes, Klamath, Wallowa, Wasco	BM, WC	ID, WA +
Carex leptalea ssp. leptalea	Flaccid sedge	G5T5	S3			4	Clackamas, Clatsop, Coos, Curry, Hood River, Jackson, Klamath, Lane, Lincoln, Linn, Multnomah, Union, Wallowa, Wasco	BM, CR, KM, WC	CA, ID, WA +
Carex livida	Pale sedge	G5	S2			2	Clackamas, Lane, Lincoln, Multnomah	CR, WC	CA, ID, WA +
Carex macrocephala	Bighead sedge	G5	S3			4	Clatsop, Coos, Douglas, Lane, Lincoln, Tillamook	CR	WA, AK, BC
Carex macrochaeta	Alaska long-awned sedge	G5	S2			2	Clatsop, Multnomah	CR, WC	WA +
Carex media	Intermediate sedge	G5T5?	S1			2	Wallowa	BM	WA +
Carex nardina	Spikenard sedge	G4G5	S2?			2	Grant, Wallowa	BM	ID, NV, WA +
Carex nervina	Sierra nerved sedge	G5	S1			2	Jackson, Josephine	KM	CA, NV
Carex pelocarpa	A sedge	G4G5	S1			2	Harney, Wallowa	BM, BR	ID, NV +
Carex pluriflora	Many flowered sedge	G4	S1			2	Clatsop	CR	WA, BC +
Carex praeceptorium	Teacher's sedge	G4G5	S3			4	Baker, Grant, Harney, Union, Wallowa	BM, BR	CA, ID, NV, WA +
Carex praticola	Meadow sedge	G5	S3			4	Baker, Benton, Crook, Grant, Harney, Hood River, Jackson, Lane, Linn?, Marion, Morrow, Polk, Umatilla, Union, Wallowa, Wheeler	BM, KM, WC, WV	CA, WA, ID +
Carex pyrenaica ssp. micropoda	A sedge	G4G5T4T5	S1			2	Baker?, Union?, Wallowa	BM	CA, ID, NV, WA +
Carex retrorsa	Retrorse sedge	G5	S1			2	Baker, Columbia, Lane, Multnomah, Umatilla	BM, CB, WV	ID, WA +
Carex saxatilis	Russet sedge	G5	S1			2	Lake, Wallowa	BM, BR	ID, NV, WA +
Carex scabriuscula	Siskiyou sedge	G3G4	S3			2	Curry, Jackson, Josephine	KM	CA
Carex scirpoidea var. stenochlaena	Alaskan single-spiked sedge	G5T4T5	S1?			2	Harney, Lane	BR, WC	ID, WA, MT +
Carex serpenticola	Serpentine sedge	G3?	S3			4	Curry, Josephine	KM	CA
Carex serratodens	Saw-tooth sedge	G5	S2			2	Douglas, Jackson, Josephine	KM	CA
Carex sp. nov.	A sedge	G2	S2			1	Josephine	KM	CA
Carex subnigricans	Dark alpine sedge	G5	S1			2	Harney, Wallowa	BM, BR	CA, NV, ID +
Carex tahoensis	Tahoe sedge	G5	SNR			3	Grant, Wallowa	BM	CA, ID, WA +
Carex vernacula	Native sedge	G5	S2			2	Baker, Harney, Hood River, Lake, Wallowa	BM, BR, EC, WC	CA, ID, NV, WA +
Castilleja brevilobata	Short-lobed red-paintbrush	G5T3	S3			4	Curry, Jackson, Josephine	KM	CA
Castilleja chambersii	Chambers' paintbrush	G1	S1	SOC		1	Clatsop	CR
Castilleja chlorotica	Green-tinged paintbrush	G3	S3			1	Crook, Deschutes, Klamath, Lake	BM, EC
Castilleja flava var. rustica	Rustic paintbrush	G4G5T3T4	S1?			2	Baker, Wallowa	BM	ID, MT
Castilleja fraterna	Fraternal paintbrush	G2	S2	SOC		1	Union, Wallowa	BM
Castilleja levisecta	Golden paintbrush	G1	SH	LT	LE	1-ex	Linn, Marion, Multnomah	WV	WA, BC
Castilleja mendocinensis	Mendocino coast paintbrush	G2	S1	SOC		1	Curry	CR	CA
Castilleja pallescens var. inverta	Inverted pale paintbrush	G4T3?	S3?			4	Baker?, Harney, Malheur	BM?, BR	ID, NV, UT
Castilleja rubida	Purple alpine paintbrush	G2	S2	SOC		1	Wallowa	BM
Castilleja rupicola	Cliff paintbrush	G3	S2	SOC		2	Clackamas?, Deschutes, Hood River?, Lane, Linn, Marion?, Multnomah	WC	WA, BC
Castilleja schizotricha	Split-hair paintbrush	G3	S2			2	Jackson, Josephine	KM	CA
Castilleja thompsonii	Thompson's paintbrush	G3G4	S1			2	Wasco	EC, WC	WA, BC
Castilleja viscidula	Sticky paintbrush	G4?	SNR			3	Baker, Harney?, Union, Wallowa	BM	ID, NV
Castilleja wightii	Wight's paintbrush	G4?	SH			3	Curry	CR	CA
Caulanthus crassicaulis	Thick-stemmed wild cabbage	G4G5	S4			4	Harney, Lake, Malheur	BR	NV
Caulanthus major var. nevadensis	Slender wild cabbage	G4T3?	S1	SOC	C	2	Harney, Malheur	BR	CA, NV
Caulanthus pilosus	Hairy wild cabbage	G4	S4			4	Baker, Harney, Malheur	BM, BR, SP	CA, ID, NV
Ceratophyllum echinatum	Prickly hornwort	G4?	SH?			2-ex	Lane	CR	WA +
Chaenactis cusickii	Cusick's chaenactis	G3	S3			4	Malheur	BR	ID
Chaenactis macrantha	Large-flowered chaenactis	G4	S3			4	Harney, Malheur	BR	CA, ID, NV +
Chaenactis nevii	Nevius' chaenactis	G4	S4			4	Gilliam, Grant, Jefferson, Wasco, Wheeler	BM
Chaenactis xantiana	Desert pincusion	G4G5	S1?			2	Harney, Lake, Malheur	BR	CA, NV, AZ
Chaetadelpha wheeleri	Wheeler's skeleton-weed	G4	S2			2	Harney, Malheur	BR	CA, NV
Cheilanthes covillei	Coville's lipfern	G4?	S1			2	Jackson	WC	CA, NV +
Cheilanthes feei	Fee's lipfern	G5	S2			2	Wallowa	BM	CA, ID, NV, WA +
Cheilanthes intertexta	Coastal lipfern	G5	S1			2	Douglas, Jackson	KM	CA
Chlorogalum angustifolium	Narrow-leaved amole	G4G5	S1			2	Jackson, Josephine	KM	CA
Cicendia quadrangularis	Timwort	G4	S2			2	Coos, Douglas, Lane, Linn	CB, KM, WV	CA +
Cicuta bulbifera	Bulb-bearing water-hemlock	G5	SH			2-ex	Klamath	EC	ID, WA +
Cimicifuga elata	Tall bugbane	G3	S3		C	1	Benton, Clackamas, Columbia, Douglas, Jackson, Josephine, Lane, Linn, Marion, Multnomah, Polk, Washington, Yamhill	CR, KM, WC, WV	WA, BC
Cirsium ciliolatum	Ashland thistle	G2Q	S2			1	Jackson	KM	CA
Clarkia heterandra	Small-fruit clarkia	G4?	S1?			2	Jackson, Josephine	KM	CA
Claytonia nevadensis	Sierra spring-beauty	G4	S3			4	Harney	BR	CA, NV
Clintonia andrewsiana	Andrew's bead-lily	G4	SH			2-ex	Curry	CR	CA
Cochlearia officinalis	Spoonwort	G5	S1			2	Coos, Curry	CR	CA, WA +
Collomia larsenii	Talus collomia	G5T4	S4			4	Clackamas, Deschutes, Hood River, Jefferson, Lane	WC	CA, WA
Collomia mazama	Mt. Mazama collomia	G3	S3			1	Douglas, Jackson, Klamath	WC
Collomia renacta	Barren Valley collomia	G1Q	S1	SOC	C	1	Malheur	BR	NV
Coptis trifolia	Three-leaf goldthread	G5	S1			2	Clackamas, Wasco	WC	BC +
Corallorhiza wisteriana	Spring coral-root	G5	SNR			3	Jackson	KM	ID +
Cordylanthus maritimus ssp. palustris	Pt. Reyes bird's-beak	G4?T2	S2	SOC	LE	1	Coos, Lincoln, Tillamook	CR	CA
Corydalis aquae-gelidae	Cold-water corydalis	G3	S3	SOC	C	1	Clackamas, Lane, Linn, Marion, Multnomah	WC	WA
Coryphantha vivipara var. vivipara	Cushion coryphantha	G5T4	S1			2	Jefferson, Sherman	BM, BR?, CB	CA, ID, NV +
Crassula solierii	Solieri's pygmyweed	G4G5	S1?			3	Lake	BR	CA, NV +
Cryptantha humilis	Low cryptantha	G4?	SNR			3	Harney, Malheur, Wallowa	BM, BR	CA, ID, NV +
Cryptantha leiocarpa	Seaside cryptantha	G3G4	S1			2	Curry	CR	CA
Cryptantha leucophaea	Gray cryptantha	G2G3	SH			2-ex	Gilliam	CB	WA
Cryptantha milo-bakeri	Milo Baker's cryptantha	G3G4	S1			2	Curry, Jackson, Josephine	CR, KM	CA
Cryptantha propria	Malheur cryptantha	G4	S4			4	Baker, Grant, Harney, Lake, Malheur, Wheeler	BM, BR, SP	ID
Cryptantha simulans	Pine woods cryptantha	G4	SNR			3	Baker, Harney, Jackson, Klamath, Lake	BM, BR, EC, KM?	CA, ID, NV, WA
Cryptantha thompsonii	Thompson's cryptantha	G2G3	SNR			3	Baker	BM	WA
Cryptogramma stelleri	Steller's rock-brake	G5	S1			2	Baker?, Wallowa	BM	NV, WA +
Cupressus bakeri	Baker's cypress	G3	S1	SOC		2	Jackson, Josephine	KM, WC	CA
Cymopterus acaulis var. greeleyorum	Greeley's cymopterus	G5T2	S1	SOC		1	Malheur	BR	ID
Cymopterus longipes ssp. ibapensis	Ibapah wavewing	G4	S2?			2	Malheur	BR	ID, NV +
Cymopterus nivalis	Snowline cymopterus	G5	S2			2	Grant, Harney, Lake	BM, BR	ID, NV +
Cymopterus purpurascens	Purple cymopterus	G4	S2			2	Harney	BR	CA, ID, NV
Cyperus acuminatus	Short-pointed cyperus	G5	S1			2	Jackson, Josephine, Lane, Linn, Marion	KM, WV	CA, WA +
Cyperus bipartitus	Shining cyperus	G5	SNR			3	Curry, Douglas, Jackson, Josephine, Lane, Malheur, Umatilla, Wasco	BR, CB, CR, KM, SP , WV	CA, ID, WA +
Cyperus lupulinus ssp. lupulinus	A cyperus	G5T5?	S1			2	Lane, Wallowa	BM, WV	ID, WA +
Cypripedium calceolus var. parviflorum	Yellow lady's-slipper	G5	SH			2-ex	Lake?	EC?	ID, MT, WA
Cypripedium californicum	California lady's-slipper	G3	S3			4	Coos, Curry, Douglas, Jackson, Josephine	CR, KM	CA
Cypripedium fasciculatum	Clustered lady's-slipper	G4	S3	SOC	C	2	Baker, Curry, Douglas, Jackson, Josephine	BM, KM, WC	CA, CO, ID, MT, WA, WY
Cypripedium montanum	Mountain lady's-slipper	G4G5	S3S4			4	Baker, Benton, Clackamas, Crook, Deschutes?, Douglas, Grant, Hood River, Jackson, Jefferson, Josephine, Klamath, Lake, Lane, Marion, Morrow?, Multnomah, Umatilla, Union, Wallowa, Wasco, Wheeler	BM, EC, KM, WC, WV	CA, ID, WA +
Darlingtonia californica	California pitcher-plant	G3G4	S3S4			4	Coos, Curry, Douglas, Josephine, Lane, Lincoln, Tillamook	CR, KM	CA
Delphinium leucophaeum	White rock larkspur	G2Q	S2	SOC	LE	1	Clackamas, Marion, Multnomah, Washington, Yamhill	WC, WV	WA
Delphinium nudicaule	Red larkspur	G4	S2			2	Jackson, Josephine	KM	CA
Delphinium nuttallii	Nuttall's larkspur	G4	S1			2	Clackamas, Hood River, Multnomah, Wasco, Yamhill	EC, WC, WV	WA, BC
Delphinium oreganum	Willamette Valley larkspur	G1Q	S1	SOC	C	1	Clatsop, Lane, Linn, Marion, Polk?, Yamhill	CR, WC, WV
Delphinium pavonaceum	Peacock larkspur	G1Q	S1	SOC	LE	1	Benton, Clackamas, Lane, Marion, Multnomah, Polk	CR?, WC?, WV
Dicentra formosa ssp. oregana	Oregon bleedingheart	G5T4	S4			4	Curry, Josephine	KM	CA
Dicentra pauciflora	Few-flower bleedinghearts	G3?	S1	SOC		2	Josephine	KM	CA
Dichelostemma ida-maia	Firecracker flower	G4	S4			4	Curry, Douglas, Jackson, Josephine	CR, KM, WC	CA
Dodecatheon austrofrigidum	Frigid shootingstar	G2	S2	SOC		1	Clatsop, Tillamook	CR	WA
Douglasia laevigata	Smooth-leaved douglasia	G3	SNR			3	Clackamas, Clatsop, Deschutes, Hood River, Linn, Marion, Multnomah, Tillamook	CR, WC	WA +
Draba aureola	Golden alpine draba	G4	S4			4	Clackamas, Deschutes, Klamath, Lane	WC	CA, WA
Draba cusickii var. cusickii	Cusick's draba	G4T3	S3			4	Harney	BR
Draba howellii	Howell's whitlow-grass	G4	S2		C	2	Curry, Josephine	KM	CA
Draba lemmonii var. cyclomorpha	Wallowa draba	G4T3	S3			4	Union, Wallowa	BM
Dryas drummondii	Yellow mountain-avens	G5	S4			4	Wallowa	BM	WA +
Dryopteris filix-mas	Male fern	G5	S3			4	Baker, Columbia, Malheur, Umatilla, Union, Wallowa, Wasco