International ecological classification standard: Terrestrial Ecological Classifications Sagebrush Vegetation Classification for the Western United States: Plant Associations and Alliances



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INTERNATIONAL ECOLOGICAL
CLASSIFICATION STANDARD:

Terrestrial Ecological Classifications
Sagebrush Vegetation Classification

for the Western United States:

Plant Associations and Alliances

23 December 2004

by
NatureServe
1101 Wilson Blvd., 15th floor

Arlington, VA 22209


This subset of the International Ecological Classification Standard covers Sagebrush vegetation associations and alliances attributed to the western US. This classification has been developed in consultation with many individuals and agencies and incorporates information from a variety of publications and other classifications. Comments and suggestions regarding the contents of this subset should be directed to Jimmy Kagan <jimmy.kagan@orst.edu> and Marion Reid marion_reid@natureserve.org.


Copyright © 2004 NatureServe, 1101 Wilson Blvd, 15th floor


Arlington, VA 22209, U.S.A. All Rights Reserved.

Citations:

The following citation should be used in any published materials which reference ecological system and/or International Vegetation Classification (IVC hierarchy) and association data:

NatureServe. 2004. International Ecological Classification Standard: Terrestrial Ecological Classifications. NatureServe Central Databases. Arlington, VA. U.S.A. Data current as of .


Restrictions on Use: Permission to use, copy and distribute these data is hereby granted under the following conditions:

  1. The above copyright notice must appear in all documents and reports;

  2. Any use must be for informational purposes only and in no instance for commercial purposes;

  3. Some data may be altered in format for analytical purposes, however the data should still be referenced using the citation above.

Any rights not expressly granted herein are reserved by NatureServe. Except as expressly provided above, nothing contained herein shall be construed as conferring any license or right under any NatureServe copyright.


Information Warranty Disclaimer: All data are provided as is without warranty as to the currentness, completeness, or accuracy of any specific data. The absence of data in any particular geographic area does not necessarily mean that species or ecological communities of concern are not present. NatureServe hereby disclaims all warranties and conditions with regard to these data, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, and non-infringement. In no event shall NatureServe be liable for any special, indirect, incidental, consequential damages, or for damages of any kind arising out of or in connection with the use of these data. Because the data in the NatureServe Central Databases are continually being updated, it is advisable to refresh data at least once a year after receipt.

NatureServe

1101 Wilson Blvd, 15th floor

Arlington, VA 22209

_____________________________________________________________

These data are extracted from:

NatureServe. 2004. International Ecological Classification Standard: Terrestrial Ecological Classifications. NatureServe Central Databases. Arlington, VA. U.S.A. Data current as of 23 December 2004.

_____________________________________________________________



This document may be generally cited as follows:

NatureServe1. 2004. International Ecological Classification Standard: Terrestrial Ecological Classifications. Sagebrush associations and alliances of the western US. NatureServe Central Databases. Arlington, VA and Oregon Natural Heritage Information Center, Portland, OR. Data current as of 23 December 2004.

1 NatureServe is an international organization including NatureServe regional offices, a NatureServe central office, U.S. State Natural Heritage Programs, and Conservation Data Centres (CDC) in Canada and Latin America and the Caribbean. Ecologists from the following organizations have contributed the development of the ecological systems classification:
United States

Central NatureServe Office, Arlington, VA; Eastern Regional Office, Boston, MA; Midwestern Regional Office, Minneapolis, MN; Southeastern Regional Office, Durham, NC; Western Regional Office, Boulder, CO; Alabama Natural Heritage Program, Montgomery AL; Alaska Natural Heritage Program, Anchorage, AK; Arizona Heritage Data Management Center, Phoenix AZ; Arkansas Natural Heritage Commission Little Rock, AR; Blue Ridge Parkway, Asheville, NC; California Natural Heritage Program, Sacramento, CA; Colorado Natural Heritage Program, Fort Collins, CO; Connecticut Natural Diversity Database, Hartford, CT; Delaware Natural Heritage Program, Smyrna, DE; District of Columbia Natural Heritage Program/National Capital Region Conservation Data Center, Washington DC; Florida Natural Areas Inventory, Tallahassee, FL; Georgia Natural Heritage Program, Social Circle, GA; Great Smoky Mountains National Park, Gatlinburg, TN; Gulf Islands National Seashore, Gulf Breeze, FL; Hawaii Natural Heritage Program, Honolulu, Hawaii; Idaho Conservation Data Center, Boise, ID; Illinois Natural Heritage Division/Illinois Natural Heritage Database Program, Springfield, IL; Indiana Natural Heritage Data Center, Indianapolis, IN; Iowa Natural Areas Inventory, Des Moines, IA; Kansas Natural Heritage Inventory, Lawrence, KS; Kentucky Natural Heritage Program, Frankfort, KY; Louisiana Natural Heritage Program, Baton Rouge, LA; Maine Natural Areas Program, Augusta, ME; Mammoth Cave National Park, Mammoth Cave, KY; Maryland Wildlife & Heritage Division, Annapolis, MD; Massachusetts Natural Heritage & Endangered Species Program, Westborough, MA; Michigan Natural Features Inventory, Lansing, MI; Minnesota Natural Heritage & Nongame Research and Minnesota County Biological Survey, St. Paul, MN; Mississippi Natural Heritage Program, Jackson, MI; Missouri Natural Heritage Database, Jefferson City, MO; Montana Natural Heritage Program, Helena, MT; National Forest in North Carolina, Asheville, NC; National Forests in Florida, Tallahassee, FL; National Park Service, Southeastern Regional Office, Atlanta, GA; Navajo Natural Heritage Program, Window Rock, AZ; Nebraska Natural Heritage Program, Lincoln, NE; Nevada Natural Heritage Program, Carson City, NV; New Hampshire Natural Heritage Inventory, Concord, NH; New Jersey Natural Heritage Program, Trenton, NJ; New Mexico Natural Heritage Program, Albuquerque , NM; New York Natural Heritage Program, Latham, NY; North Carolina Natural Heritage Program, Raleigh, NC; North Dakota Natural Heritage Inventory, Bismarck, ND; Ohio Natural Heritage Database, Columbus, OH; Oklahoma Natural Heritage Inventory, Norman, OK; Oregon Natural Heritage Program, Portland, OR; Pennsylvania Natural Diversity Inventory, PA; Rhode Island Natural Heritage Program, Providence, RI; South Carolina Heritage Trust, Columbia, SC; South Dakota Natural Heritage Data Base, Pierre, SD; Tennessee Division of Natural Heritage, Nashville, TN; Tennessee Valley Authority Heritage Program, Norris, TN; Texas Conservation Data Center, San Antonio, TX; Utah Natural Heritage Program, Salt Lake City, UT; Vermont Nongame & Natural Heritage Program, Waterbury, VT; Virginia Division of Natural Heritage, Richmond, VA; Washington Natural Heritage Program, Olympia, WA; West Virginia Natural Heritage Program, Elkins, WV; Wisconsin Natural Heritage Program, Madison, WI; Wyoming Natural Diversity Database, Laramie, WY
Canada

Alberta Natural Heritage Information Centre, Edmonton, AB, Canada; Atlantic Canada Conservation Data Centre, Sackville, New Brunswick, Canada; British Columbia Conservation Data Centre, Victoria, BC, Canada; Manitoba Conservation Data Centre. Winnipeg, MB, Canada; Ontario Natural Heritage Information Centre, Peterborough, ON, Canada; Quebec Conservation Data Centre, Quebec, QC, Canada; Saskatchewan Conservation Data Centre, Regina, SK, Canada; Yukon Conservation Data Centre, Yukon, Canada


Latin American and Caribbean

Centro de Datos para la Conservacion de Bolivia, La Paz , Bolivia; Centro de Datos para la Conservacion de Colombia, Cali,Valle, Columbia; Centro de Datos para la Conservacion de Ecuador, Quito, Ecuador; Centro de Datos para la Conservacion de Guatemala, Ciudad de Guatemala , Guatemala; Centro de Datos para la Conservacion de Panama, Querry Heights , Panama; Centro de Datos para la Conservacion de Paraguay, San Lorenzo , Paraguay; Centro de Datos para la Conservacion de Peru, Lima, Peru; Centro de Datos para la Conservacion de Sonora, Hermosillo, Sonora , Mexico; Netherlands Antilles Natural Heritage Program, Curacao , Netherlands Antilles; Puerto Rico-Departmento De Recursos Naturales Y Ambientales, Puerto Rico; Virgin Islands Conservation Data Center, St. Thomas, Virgin Islands.


NatureServe also has partnered with many International and United States Federal and State organizations, which have also contributed significantly to the development of the International Classification. Partners include the following The Nature Conservancy; Provincial Forest Ecosystem Classification Groups in Canada; Canadian Forest Service; Parks Canada; United States Forest Service; National GAP Analysis Program; United States National Park Service; United States Fish and Wildlife Service; United States Geological Survey; United States Department of Defense; Ecological Society of America; Environmental Protection Agency; Natural Resource Conservation Services; United States Department of Energy; and the Tennessee Valley Authority. Many individual state organizations and people from academic institutions have also contributed to the development of this classification.

Table of Contents

III. Shrubland 6

III.A.4.N.a. Lowland microphyllous evergreen shrubland 6

A.2547–Artemisia arbuscula ssp. arbuscula Shrubland Alliance 6

CEGL002982–Artemisia arbuscula ssp. arbuscula - Artemisia tridentata ssp. vaseyana / Festuca idahoensis Shrubland [Provisional] 7

CEGL002983–Artemisia arbuscula ssp. arbuscula - Artemisia tridentata ssp. wyomingensis / Festuca idahoensis Shrubland [Provisional] 8

CEGL003483–Artemisia arbuscula ssp. arbuscula / Eriogonum microthecum Shrubland 8

CEGL003482–Artemisia arbuscula ssp. arbuscula / Leptodactylon pungens Shrubland 9

A.2548–Artemisia arbuscula ssp. longicaulis Shrubland Alliance 10

CEGL002984–Artemisia arbuscula ssp. longicaulis - Grayia spinosa Shrubland 10

CEGL002985–Artemisia arbuscula ssp. longicaulis / Bromus tectorum Semi-natural Shrubland 11

CEGL002986–Artemisia arbuscula ssp. longicaulis / Elymus elymoides Shrubland 12



A.2549–Artemisia arbuscula ssp. longiloba Shrubland Alliance 13

CEGL001414–Artemisia arbuscula ssp. longiloba Shrubland 14



A.813–Artemisia californica - Eriogonum fasciculatum Shrubland Alliance 14

CEGL003011–Artemisia californica - Eriogonum fasciculatum Shrubland [Placeholder] 15



A.814–Artemisia californica - Salvia mellifera Shrubland Alliance 16

CEGL003012–Artemisia californica - Salvia mellifera Shrubland [Placeholder] 16



A.815–Artemisia californica Shrubland Alliance 17

CEGL003013–Artemisia californica Shrubland [Placeholder] 18



A.2557–Artemisia cana (ssp. bolanderi, ssp. viscidula) Shrubland Alliance 19

CEGL001460–Artemisia cana (ssp. bolanderi, ssp. viscidula) / Leymus cinereus Shrubland 20

CEGL002988–Artemisia cana (ssp. bolanderi, ssp. viscidula) / Poa pratensis Semi-natural Shrubland 21

CEGL001548–Artemisia cana (ssp. bolanderi, ssp. viscidula) / Poa secunda Shrubland 22

CEGL002987–Artemisia cana ssp. bolanderi / Eleocharis palustris Shrubland 23

CEGL003475–Artemisia cana ssp. bolanderi / Iris missouriensis - Juncus balticus Shrubland 24

CEGL001075–Artemisia cana ssp. viscidula - (Salix spp.) / Festuca idahoensis Shrubland 24

CEGL001074–Artemisia cana ssp. viscidula / Deschampsia caespitosa Shrubland 25

CEGL001076–Artemisia cana ssp. viscidula / Festuca ovina Shrubland 27

CEGL001071–Artemisia cana ssp. viscidula / Festuca thurberi Shrubland 27

CEGL001073–Artemisia cana ssp. viscidula / Purshia tridentata Shrubland 28

A.827–Artemisia cana Shrubland Alliance 29

CEGL002175–Artemisia cana ssp. cana - Sarcobatus vermiculatus - (Ericameria nauseosa) Shrubland 30



A.816–Artemisia filifolia Shrubland Alliance 31

CEGL002786–Artemisia filifolia - Ephedra (torreyana, viridis) Shrubland 33

CEGL004561–Artemisia filifolia - Psorothamnus scoparius - Dalea lanata Gypsum Dune Shrubland 34

CEGL004559–Artemisia filifolia / Andropogon hallii - Achnatherum hymenoides Gypsum Dune Shrubland 35

CEGL001459–Artemisia filifolia / Andropogon hallii Shrubland 35

CEGL002176–Artemisia filifolia / Bouteloua (curtipendula, gracilis) Shrubland 37

CEGL004560–Artemisia filifolia / Bouteloua breviseta - Gaillardia multiceps Shrubland 38

CEGL001077–Artemisia filifolia / Bouteloua eriopoda Shrubland 38

CEGL002177–Artemisia filifolia / Calamovilfa longifolia Shrubland 39

CEGL002178–Artemisia filifolia / Schizachyrium scoparium - Andropogon hallii Shrubland 40

CEGL002179–Artemisia filifolia / Sporobolus cryptandrus Shrubland 41

CEGL001547–Artemisia filifolia / Sporobolus flexuosus Shrubland 42

CEGL001078–Artemisia filifolia / Sporobolus giganteus Shrubland 43

CEGL002697–Artemisia filifolia Colorado Plateau Shrubland 43



A.1105–Artemisia nova Shrubland Alliance 44

CEGL002773–Artemisia nova - Ericameria nana Shrubland 45

CEGL001419–Artemisia nova - Gutierrezia sarothrae / Bouteloua gracilis - Pleuraphis jamesii Shrubland 46

CEGL001422–Artemisia nova / Achnatherum hymenoides Shrubland 46

CEGL001418–Artemisia nova / Elymus elymoides Shrubland 47

CEGL001425–Artemisia nova / Hesperostipa comata Shrubland 48

CEGL001420–Artemisia nova / Pleuraphis jamesii Shrubland 50

CEGL002698–Artemisia nova / Poa fendleriana Shrubland 50

CEGL001423–Artemisia nova / Poa secunda Shrubland 51

CEGL001424–Artemisia nova / Pseudoroegneria spicata Shrubland 52

CEGL001417–Artemisia nova Shrubland 53

A.2606–Artemisia pycnocephala Shrubland Alliance 55

CEGL003182–Artemisia pycnocephala - Cardionema ramosissimum Shrubland 55



A.830–Artemisia tridentata (ssp. tridentata, ssp. xericensis) Shrubland Alliance 56

CEGL001004–Artemisia tridentata ssp. tridentata - Grayia spinosa Shrubland 58

CEGL001000–Artemisia tridentata ssp. tridentata / Distichlis spicata Shrubland 58

CEGL001014–Artemisia tridentata ssp. tridentata / Festuca idahoensis Shrubland 59

CEGL002966–Artemisia tridentata ssp. tridentata / Hesperostipa comata Shrubland 60

CEGL001016–Artemisia tridentata ssp. tridentata / Leymus cinereus Shrubland 60

CEGL001017–Artemisia tridentata ssp. tridentata / Pascopyrum smithii - (Elymus lanceolatus) Shrubland 61

CEGL001015–Artemisia tridentata ssp. tridentata / Pleuraphis jamesii Shrubland 63

CEGL001008–Artemisia tridentata ssp. tridentata / Poa secunda Shrubland 64

A.829–Artemisia tridentata Shrubland Alliance 64

CEGL002699–Artemisia tridentata - (Ericameria nauseosa) / Bromus tectorum Semi-natural Shrubland 66

CEGL001006–Artemisia tridentata / Achnatherum hymenoides Shrubland 66

CEGL001011–Artemisia tridentata / Achnatherum lettermanii Shrubland 67

CEGL000997–Artemisia tridentata / Bouteloua gracilis - Pascopyrum smithii Shrubland 68

CEGL000996–Artemisia tridentata / Bouteloua gracilis - Pleuraphis jamesii Shrubland 68

CEGL000995–Artemisia tridentata / Bouteloua gracilis Shrubland 69

CEGL000999–Artemisia tridentata / Chrysothamnus viscidiflorus / Poa secunda Shrubland 70

CEGL001001–Artemisia tridentata / Elymus elymoides Shrubland 71

CEGL000998–Artemisia tridentata / Ericameria nauseosa Shrubland 72

CEGL001005–Artemisia tridentata / Pleuraphis jamesii Shrubland 72

CEGL001012–Artemisia tridentata / Symphoricarpos longiflorus Shrubland 73

CEGL000991–Artemisia tridentata Shrubland 74

CEGL001013–Artemisia tridentata Upperzone Community Shrubland 75



A.2550–Artemisia tridentata ssp. spiciformis Shrubland Alliance 75

CEGL002989–Artemisia tridentata ssp. spiciformis / Bromus carinatus Shrubland 76

CEGL002990–Artemisia tridentata ssp. spiciformis / Carex geyeri Shrubland 77

A.831–Artemisia tridentata ssp. vaseyana Shrubland Alliance 77

CEGL005827–Artemisia tridentata ssp. vaseyana - (Purshia tridentata) / Muhlenbergia montana - (Hesperostipa comata ssp. comata) Shrubland 79

CEGL001032–Artemisia tridentata ssp. vaseyana - Purshia tridentata / Pseudoroegneria spicata Shrubland 80

CEGL001035–Artemisia tridentata ssp. vaseyana - Symphoricarpos oreophilus / Bromus carinatus Shrubland 81

CEGL001034–Artemisia tridentata ssp. vaseyana - Symphoricarpos oreophilus / Elymus trachycaulus ssp. trachycaulus Shrubland 82

CEGL001036–Artemisia tridentata ssp. vaseyana - Symphoricarpos oreophilus / Festuca idahoensis Shrubland 82

CEGL001039–Artemisia tridentata ssp. vaseyana - Symphoricarpos oreophilus / Hesperostipa comata Shrubland 83

CEGL001037–Artemisia tridentata ssp. vaseyana - Symphoricarpos oreophilus / Poa secunda Shrubland 84

CEGL001038–Artemisia tridentata ssp. vaseyana - Symphoricarpos oreophilus / Pseudoroegneria spicata Shrubland 85

CEGL001033–Artemisia tridentata ssp. vaseyana / Achnatherum occidentale Shrubland 86

CEGL001020–Artemisia tridentata ssp. vaseyana / Balsamorhiza sagittata Shrubland 87

CEGL001021–Artemisia tridentata ssp. vaseyana / Bromus carinatus Shrubland 88

CEGL008651–Artemisia tridentata ssp. vaseyana / Carex exserta Shrubland 88

CEGL001023–Artemisia tridentata ssp. vaseyana / Festuca idahoensis - Bromus carinatus Shrubland 89

CEGL001024–Artemisia tridentata ssp. vaseyana / Festuca thurberi Shrubland 90

CEGL002931–Artemisia tridentata ssp. vaseyana / Hesperostipa comata Shrubland 90

CEGL001026–Artemisia tridentata ssp. vaseyana / Leucopoa kingii - Koeleria macrantha Shrubland 91

CEGL001025–Artemisia tridentata ssp. vaseyana / Leucopoa kingii Shrubland 92

CEGL001027–Artemisia tridentata ssp. vaseyana / Leymus cinereus Shrubland 93

CEGL003476–Artemisia tridentata ssp. vaseyana / Monardella odoratissima Shrubland 94

CEGL001028–Artemisia tridentata ssp. vaseyana / Pascopyrum smithii Shrubland 94

CEGL002770–Artemisia tridentata ssp. vaseyana / Phlox condensata Shrubland 95

CEGL001029–Artemisia tridentata ssp. vaseyana / Poa secunda Shrubland 96

CEGL001031–Artemisia tridentata ssp. vaseyana / Pseudoroegneria spicata - Poa fendleriana Shrubland 97

CEGL001030–Artemisia tridentata ssp. vaseyana / Pseudoroegneria spicata Shrubland 98

A.832–Artemisia tridentata ssp. wyomingensis Shrubland Alliance 99

CEGL000993–Artemisia tridentata - Atriplex confertifolia Shrubland 101

CEGL001040–Artemisia tridentata ssp. wyomingensis - Atriplex confertifolia Shrubland 102

CEGL001048–Artemisia tridentata ssp. wyomingensis - Peraphyllum ramosissimum / Festuca idahoensis Shrubland 103

CEGL001050–Artemisia tridentata ssp. wyomingensis - Purshia tridentata / Pseudoroegneria spicata Shrubland 104

CEGL001046–Artemisia tridentata ssp. wyomingensis / Achnatherum hymenoides Shrubland 105

CEGL001052–Artemisia tridentata ssp. wyomingensis / Achnatherum thurberianum Shrubland 105

CEGL000994–Artemisia tridentata ssp. wyomingensis / Balsamorhiza sagittata Shrubland 106

CEGL001041–Artemisia tridentata ssp. wyomingensis / Bouteloua gracilis Shrubland 107

CEGL001042–Artemisia tridentata ssp. wyomingensis / Carex filifolia Shrubland 108

CEGL001044–Artemisia tridentata ssp. wyomingensis / Elymus albicans Shrubland 109

CEGL001043–Artemisia tridentata ssp. wyomingensis / Elymus elymoides Shrubland 109

CEGL001051–Artemisia tridentata ssp. wyomingensis / Hesperostipa comata Shrubland 110

CEGL001045–Artemisia tridentata ssp. wyomingensis / Leymus ambiguus Shrubland 111

CEGL001049–Artemisia tridentata ssp. wyomingensis / Poa secunda Shrubland 112

CEGL001009–Artemisia tridentata ssp. wyomingensis / Pseudoroegneria spicata Shrubland 113



A.828–Cercocarpus ledifolius Shrubland Alliance 114

CEGL001487–Artemisia arbuscula - Cercocarpus ledifolius / Pseudoroegneria spicata - Poa secunda Shrubland 115



A.825–Purshia tridentata Shrubland Alliance 116

CEGL003480–Purshia tridentata - Artemisia tridentata - Symphoricarpos rotundifolius Shrubland 117

CEGL003481–Purshia tridentata - Artemisia tridentata - Tetradymia canescens Shrubland 118

CEGL003478–Purshia tridentata - Artemisia tridentata / Achnatherum hymenoides Shrubland [Provisional] 119

CEGL003479–Purshia tridentata - Artemisia tridentata / Achnatherum nelsonii Shrubland 119

CEGL003477–Purshia tridentata - Artemisia tridentata / Eriogonum umbellatum Shrubland 120

CEGL001054–Purshia tridentata - Artemisia tridentata ssp. tridentata Shrubland 121

CEGL001055–Purshia tridentata / Artemisia frigida / Hesperostipa comata Shrubland 122



III.A.4.N.c. Temporarily flooded microphyllous shrubland 123

A.843–Artemisia cana Temporarily Flooded Shrubland Alliance 123

CEGL001072–Artemisia cana / Pascopyrum smithii Shrubland 124



III.A.5.N.a. Broad-leaved and microphyllous evergreen extremely xeromorphic subdesert shrubland 125

A.1103–Artemisia bigelovii Shrubland Alliance 125

CEGL000990–Artemisia bigelovii / Achnatherum hymenoides Shrubland 127

CEGL000276–Artemisia bigelovii Shrubland [Placeholder] 128

A.1106–Artemisia pygmaea Shrubland Alliance 129

CEGL001436–Artemisia pygmaea / Elymus elymoides - Achnatherum hymenoides Shrubland 129



A.1098–Artemisia rothrockii Shrubland Alliance 130

CEGL008652–Artemisia rothrockii / Monardella odoratissima Shrubland 131

CEGL003014–Artemisia rothrockii Shrubland [Provisional] 131

III.B.2.N.a. Temperate cold-deciduous shrubland 132

A.2565–Artemisia frigida Shrubland Alliance 132

CEGL002782–Artemisia frigida / Bouteloua gracilis Shrubland [Provisional] 133



III.B.3.N.a. Extremely xeromorphic deciduous subdesert shrubland without succulents 134

A.2551–Artemisia papposa Shrubland Alliance 134

CEGL002991–Artemisia papposa / Danthonia californica - Festuca idahoensis Shrubland 134



A.1127–Artemisia pedatifida Shrubland Alliance 135

CEGL001525–Artemisia pedatifida - Atriplex gardneri Shrubland 136

CEGL001450–Artemisia pedatifida / Elymus elymoides Shrubland 137

CEGL001526–Artemisia pedatifida / Festuca idahoensis Shrubland 138

CEGL001451–Artemisia pedatifida / Pascopyrum smithii Shrubland 139

CEGL001527–Artemisia pedatifida / Pseudoroegneria spicata Shrubland 140



A.1038–Grayia spinosa Shrubland Alliance 141

CEGL001344–Grayia spinosa / Artemisia nova / Achnatherum speciosum Shrubland 142

CEGL001345–Grayia spinosa / Picrothamnus desertorum Shrubland 142

A.1128–Picrothamnus desertorum Shrubland Alliance 143

CEGL002992–Picrothamnus desertorum / Elymus elymoides Shrubland [Provisional] 144

CEGL001452–Picrothamnus desertorum Shrubland 144

V. Herbaceous Vegetation 146

V.A.6.N.f. Medium-tall temperate or subpolar grassland with a sparse needle-leaved evergreen or mixed tree layer 146

A.1500–Juniperus occidentalis Wooded Herbaceous Alliance 146

CEGL001716–Juniperus occidentalis / Artemisia arbuscula / Festuca idahoensis Wooded Herbaceous Vegetation 147

CEGL001715–Juniperus occidentalis / Artemisia arbuscula / Poa secunda Wooded Herbaceous Vegetation 147

CEGL001717–Juniperus occidentalis / Artemisia arbuscula / Pseudoroegneria spicata Wooded Herbaceous Vegetation 148

CEGL001718–Juniperus occidentalis / Artemisia rigida / Poa secunda Wooded Herbaceous Vegetation 149

CEGL001722–Juniperus occidentalis / Artemisia tridentata - Purshia tridentata Wooded Herbaceous Vegetation 150

CEGL001719–Juniperus occidentalis / Artemisia tridentata / Carex filifolia Wooded Herbaceous Vegetation 151

CEGL001720–Juniperus occidentalis / Artemisia tridentata / Festuca idahoensis Wooded Herbaceous Vegetation 152

CEGL001721–Juniperus occidentalis / Artemisia tridentata / Pseudoroegneria spicata Wooded Herbaceous Vegetation 152

V.A.7.N.e. Medium-tall temperate or subpolar grassland with a sparse needle-leaved or microphyllous evergreen shrub layer 153

A.1566–Artemisia arbuscula ssp. arbuscula Shrub Herbaceous Alliance 153

CEGL001518–Artemisia arbuscula ssp. arbuscula - Purshia tridentata / Pseudoroegneria spicata - Festuca idahoensis Shrub Herbaceous Vegetation 155

CEGL001413–Artemisia arbuscula ssp. arbuscula / Achnatherum thurberianum Shrub Herbaceous Vegetation 156

CEGL001409–Artemisia arbuscula ssp. arbuscula / Festuca idahoensis Shrub Herbaceous Vegetation 156

CEGL001410–Artemisia arbuscula ssp. arbuscula / Leymus salinus ssp. salmonis Shrub Herbaceous Vegetation 157

CEGL001411–Artemisia arbuscula ssp. arbuscula / Poa secunda Shrub Herbaceous Vegetation 159

CEGL001412–Artemisia arbuscula ssp. arbuscula / Pseudoroegneria spicata Shrub Herbaceous Vegetation 159

A.2552–Artemisia arbuscula ssp. longiloba Shrub Herbaceous Alliance 160

CEGL001522–Artemisia arbuscula ssp. longiloba / Festuca idahoensis Shrub Herbaceous Vegetation 162

CEGL001415–Artemisia arbuscula ssp. longiloba / Pascopyrum smithii Shrub Herbaceous Vegetation 163

CEGL001523–Artemisia arbuscula ssp. longiloba / Poa secunda Shrub Herbaceous Vegetation 163

CEGL001416–Artemisia arbuscula ssp. longiloba / Pseudoroegneria spicata Shrub Herbaceous Vegetation 164

A.2553–Artemisia arbuscula ssp. thermopola Shrub Herbaceous Alliance 165

CEGL001519–Artemisia arbuscula ssp. thermopola / Festuca idahoensis Shrub Herbaceous Vegetation 166



A.1531–Artemisia cana (ssp. bolanderi, ssp. viscidula) Shrub Herbaceous Alliance 167

CEGL001549–Artemisia cana (ssp. bolanderi, ssp. viscidula) - Artemisia tridentata ssp. vaseyana / Poa cusickii Shrub Herbaceous Vegetation [Provisional] 168

CEGL001551–Artemisia cana (ssp. bolanderi, ssp. viscidula) / Poa fendleriana ssp. fendleriana Shrub Herbaceous Vegetation 169

CEGL001743–Artemisia cana ssp. bolanderi / Muhlenbergia richardsonis Shrub Herbaceous Vegetation 170

CEGL001552–Artemisia cana ssp. viscidula / Festuca idahoensis Shrub Herbaceous Vegetation 171

A.2554–Artemisia cana ssp. cana Shrub Herbaceous Alliance 172

CEGL001555–Artemisia cana ssp. cana / Calamovilfa longifolia Shrub Herbaceous Vegetation 172

CEGL001553–Artemisia cana ssp. cana / Hesperostipa comata Shrub Herbaceous Vegetation 173

CEGL001556–Artemisia cana ssp. cana / Pascopyrum smithii Shrub Herbaceous Vegetation 175



A.1567–Artemisia nova Shrub Herbaceous Alliance 176

CEGL001524–Artemisia nova / Festuca idahoensis Shrub Herbaceous Vegetation 177

CEGL001421–Artemisia nova / Leymus salinus ssp. salmonis Shrub Herbaceous Vegetation 178

A.1522–Artemisia tridentata (ssp. tridentata, ssp. xericensis) Shrub Herbaceous Alliance 179

CEGL001019–Artemisia tridentata (ssp. tridentata, ssp. xericensis) / Pseudoroegneria spicata - Poa secunda Shrub Herbaceous Vegetation 181

CEGL001018–Artemisia tridentata (ssp. tridentata, ssp. xericensis) / Pseudoroegneria spicata Shrub Herbaceous Vegetation 182

A.1521–Artemisia tridentata Shrub Herbaceous Alliance 184

CEGL001530–Artemisia tridentata / Festuca idahoensis Shrub Herbaceous Vegetation 185

CEGL001458–Artemisia tridentata / Leymus cinereus Shrub Herbaceous Vegetation 186

A.2555–Artemisia tridentata ssp. spiciformis Shrub Herbaceous Alliance 187

CEGL002993–Artemisia tridentata ssp. spiciformis Shrub Herbaceous Vegetation [Provisional] 188



A.1526–Artemisia tridentata ssp. vaseyana Shrub Herbaceous Alliance 188

CEGL001532–Artemisia tridentata ssp. vaseyana / Carex geyeri Shrub Herbaceous Vegetation 190

CEGL001531–Artemisia tridentata ssp. vaseyana / Festuca campestris Shrub Herbaceous Vegetation 191

CEGL001533–Artemisia tridentata ssp. vaseyana / Festuca idahoensis Shrub Herbaceous Vegetation 193



A.1527–Artemisia tridentata ssp. wyomingensis Shrub Herbaceous Alliance 194

CEGL001534–Artemisia tridentata ssp. wyomingensis / Mixed Grasses Shrub Herbaceous Vegetation 196

CEGL001047–Artemisia tridentata ssp. wyomingensis / Pascopyrum smithii Shrub Herbaceous Vegetation 197

CEGL001535–Artemisia tridentata ssp. wyomingensis / Pseudoroegneria spicata Shrub Herbaceous Vegetation 198



A.2556–Artemisia tripartita ssp. rupicola Shrub Herbaceous Alliance 200

CEGL001540–Artemisia tripartita ssp. rupicola / Festuca idahoensis Shrub Herbaceous Vegetation 201



A.1528–Artemisia tripartita ssp. tripartita Shrub Herbaceous Alliance 202

CEGL001537–Artemisia tripartita ssp. tripartita / Festuca campestris Shrub Herbaceous Vegetation 203

CEGL001536–Artemisia tripartita ssp. tripartita / Festuca idahoensis Shrub Herbaceous Vegetation 204

CEGL001539–Artemisia tripartita ssp. tripartita / Hesperostipa comata Shrub Herbaceous Vegetation 205

CEGL002994–Artemisia tripartita ssp. tripartita / Leymus cinereus Shrub Herbaceous Vegetation 206

CEGL001538–Artemisia tripartita ssp. tripartita / Pseudoroegneria spicata Shrub Herbaceous Vegetation 207



A.1530–Muhlenbergia setifolia / Artemisia bigelovii Shrub Herbaceous Alliance 208

CEGL001544–Artemisia bigelovii / Muhlenbergia setifolia Shrub Herbaceous Vegetation 209



A.1525–Sporobolus cryptandrus Shrub Herbaceous Alliance 209

CEGL001545–Artemisia tridentata / Sporobolus cryptandrus - Achnatherum hymenoides Shrub Herbaceous Vegetation 210



V.A.7.N.l. Short temperate or subpolar grassland with a sparse cold-deciduous shrub layer 211

A.1574–Artemisia rigida Shrub Herbaceous Alliance 211

CEGL002995–Artemisia rigida / Festuca idahoensis Shrub Herbaceous Vegetation 213

CEGL001528–Artemisia rigida / Poa secunda Shrub Herbaceous Vegetation 214

CEGL001529–Artemisia rigida / Pseudoroegneria spicata Shrub Herbaceous Vegetation 214



V.A.8.N.a. Short temperate or subpolar lowland grassland with a sparse needle-leaved or microphyllous dwarf-shrub layer 215

A.1570–Bouteloua eriopoda Dwarf-shrub Herbaceous Alliance 215

CEGL001741–Artemisia bigelovii / Bouteloua eriopoda Dwarf-shrub Herbaceous Vegetation 216



A.1571–Bouteloua gracilis Dwarf-shrub Herbaceous Alliance 216

CEGL001742–Artemisia bigelovii / Bouteloua gracilis Dwarf-shrub Herbaceous Vegetation 217



V.B.2.N.b. Low temperate or subpolar perennial forb vegetation 218

A.1624–Artemisia arctica Herbaceous Alliance 218

CEGL001848–Artemisia arctica ssp. arctica Herbaceous Vegetation 219



A.1654–Sphaeromeria argentea Herbaceous Alliance 219

CEGL001992–Sphaeromeria argentea - Artemisia frigida - Poa secunda Herbaceous Vegetation 220



VII. Sparse Vegetation 222

VII.C.3.N.b. Dry slopes 222

A.1874–Artemisia longifolia Sparsely Vegetated Alliance 222

CEGL001521–Artemisia longifolia - Calamovilfa longifolia Sparse Vegetation 222



CEGL002195–Artemisia longifolia Badlands Sparse Vegetation 224

Bibliography for Sagebrush Descriptions 226





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