EXAMPLES OF FOREST HABITAT TYPES IN EASTERN ·WESTERN

Pinus flexilis/Festuca idahoensis h.t. Pseudotsuga menziesiil Pseudotsuga menziesiilArnica cordifolia hot., Pseudotsuga menzies;;1 Pseudotsuga menzlesffl Pseudotsuga menzies;;IPhysocarpus Symphoricarpos albus hot. A westerly slope in the southern Absaroka Range north of Dubois, Wyo. (2 591 m, Symphoricarpos oreophilus h.t. Arnica cordifolia phase Vaccinium globulare hot. malvaceus hot., Pachistima myrsinites phase 8,500 ttl. An open stand of Pinus flexifis interspersed with Pseudotsuga dominates a A gentle south slope along the near Alpine, Wyo. (1 750 m, 5,740 ft), An A moderately steep northwest exposure near Willow Lake north of Pinedale, Wyo. A steep northwesterly slope in the Absaroka Range wesl of Cody, Wyo. (2 104 m, A gentle northeasterly slope in the Range west of Driggs, Idaho (2 134 m, A steep northwesterly slope near Palisades. Idaho (1652 m, 5,420 ft). This pole-Size sparse undergrowth composed mainly of Festuca idahoensis. aU-age stand of Pseudotsuga dominates the site. Symphoricarpos a/bus and Spiraea (2415 7,920 tt). An all-age stand of Pseudotsugs dominates the site. 6,900 tt). A dense stand of Pseudotsuga dominates the site. Arnica cordifolis and the 7,CXXl tt). A pure stand of Pseudotsuga dominates the site. Vaccinium and Spiraea are stand of Pseudotsuga dominates a shrub layer composed mainly of Physocarpus. m, betulifo/ia codominate the undergrowth. Symphoricarpos oreophilus dominates the undergrowth. Agropyron spicatum and fallen stems of Pseudotsuga are prominent features of the forest floor. the prominent components of the undergrowth. ArnIca cordlfol/a dominates the herb layer. Festuca idahoensis are the prominent grasses.

Picea engelmanniilJuniperus communis h.t Picea enge/manniilVaccinium scoparium h.t. Picea engelmanniilLinnaea borealis h.t. Plcea engelmanniilGalium triflorum h.t. Picea enge/manniilCarex disperma hoto Picea engelmanniilCaltha leptosepala hot. A gentle east slope in the Bear Creek drainage north 01 Dubois, \Nyo. (2774 m, A gentle lower slope in the Wind River Range east of Pinedale, Wyo. (2 696 m, A genlla bench in the Absaroka Range northwest of Cody. Wyo. (2 430 m, 7,970 It). An alluvial terrace alonQ Sunlighl Creek In the Absaroka Range (2149 m, 7,050 fI). A gentle south slope in the Wind River Range north of Pinedale, Wyo. (2 408 m , This eastern outlier of the habitat type occurs in a flal boggy area near Powder Pass 9,100 II). An oId.growth sland of Picsa dominates the site. The undergrowth is com· 9,500 tt). A mature stand of Picea has replaced the fallen Pinus contorta. Vaccinium Pinus contorta and Picsa dominate the site. Linnaea borealis is abundant in the Pirea and Pinus contorta dominate a lush undergrowth. The most prominent 7,900 It). Picea and a few Populus tremu/oldes dOminate this wet bog·like site. Catex In Ihe Bighorn Mountains (2 652 m, 8,700 tt). A mature stand 01 Picea dominates a rich posed mainly of Juniperus communis and Arnica cordi/olia. scoparium dominates the undergrowth. undergrowth. undergrowlh species are Rosa aclcularls, Fragaria virginiana, Geranium riChardsonii, dlsperma forms a carpet wherever livestock have not trampled the substrate. mixture of wet·site herbs and graminoids. Caltha and Trollius laxus, both characteristic and Calamagroslis canadensis. species of the h.t., are present throughout the stand.

Abies lasiocarpalActaea rubra hot. Abies lasiocarpal Abies lasiocarpalAcer glabrum hot., Abies lasiocarpalLinnaea borealis h.t., Abies lasiocarpalLinnaea borealis hot., Abies lasiocarpalVaccinium globulare hot., An alluvial terrace along the Hoback River south of Bondurant, Wyo. (2 256 m, 7,400 ttl. Physocarpus malvaceus h.t. Pachistima myrsinites phase Linnaea borealis phase Vaccinium scoparium phase Pachistima myrsinites phase Both Picea engelmannii and P. pungens occur with Abies lasiocarpa on this si te. Actaea rubra is well represented in the diverse undergrowth of moist-site species. A steep north slope along the Hoback River northwest of Bondurant, Wyo. (1844 m, A steep north slope in the Deep Creek Mountains southwest of Pocalello, Idaho A gentle north slope in the Wind River Range north of Pinedale, Wyo. (2 561 m, A moderately steep toeslope in the Spread Creek drainage southeast of Moran, Wyo. A gentle bench in the Big Hole Mountains west 01 Driggs, Idaho (2 530 m, 8,300 tI). A 6.050 ft). Abies and Pseudotsuga dominate the site. Many small Abies have been (2027 m, 6.650 ft). A mixed stand of Abies and Pseudotsuga dominates the site. Acer 8,400 H). Pole size Picea dominates an undergrowth in which Unnaea is abundant. (2500 m, 8,200 ttl. A 250 year-old stand of pole.size Picea and scattered Abies multi·aged stand of Pinus contorta, Pseudotsuga , and Abies occupies the site. severely browsed by moose. Physocarpus and Acerdominate the undergrowth. is abundant throughout the undergrowth. Numerous stubs of small Abies suggest that moose have suppressed reproduction of dominates this site. The undergrowth is composed mainly of Linnasa and Vaccinium Vaccinium g/obulare dominates the undergrowth layer. the Abies. scoparium.

Abies lasiocarpalVaccinium globulare h.t., Abies lasiocarpalVaccinium scoparium hot., Abies lasiocarpalVaccinium scoparium h.t., Abies lasiocarpalVaccinium scoparium h.t., Abies lasiocarpalArnica latifolia h.t. Abies lasiocarpalSymphoricarpos albus hot. Vaccinium scoparium phase Vaccinium scoparium phase Calamagrostis rubescens phase Pinus albicaulis phase A steep westerly SlOpe in the Bear River Range east of Preston, Idaho (2 378 m, A steep northeasterly SlOpe along the Hoback River northwest 01 Bondurant, Wyo. 7,800 It). Large Pinus contorta and scattered Picea dominate an understory of Abies. (1 905 m,6,250 ttl. Pinus contorta and Abies form an open stand on this site. A genlle north slope near Togwotee Pass east of Moran, Wyo. (2 530 m , 8,300 fl). large A gentle west slope in theGros Ventre Range east of Jackson, Wyo. (2 622 m, A gent le north slope in the Diamond Creek drainage eas t of Soda Springs, Idaho A moderately steep north SlOpe in the Gros Ventre Range west of Moose, Wyo. Arnica latifolia dominales the undergrowth. Symphoricarpos a/bus dominates the shrub layer. Arnica cordi/olia and Aster Picea dominate a stand of smaller size Abies. Vaccinium globulsre and V. scoparium 8,600 I t). Large Pinus contorta and smaller size Abies dominate the site. Vaccinium (2 165 m, 7,100 It). Abies lasiocarpa is replacing a pole-size stand of Pinus contorta. (2805 m, 9,200 tI). A mixed stand of PInus albicaulis, P. conforta, and Picea conspicuus are the mosl prominent forbs. comprise most of the undergrowth. scopar;um is the main component of the undergrowth. Vaccinium scoplirium and Calamagrostis rubescens codominale Ihe undergrowth. codominate an understory of Abies. Vaccinium sooparium and Arnica cordi/olia are the predominant undergrowth species.

Abies lasiocarpalSpiraea betulifolia hot. Abies lasiocarpal Calamagrostis rubescens h.t., Abies lasiocarpalBerberis repens hot. Abies lasiocarpalJuniperus communis h.t. Abies lasiocarpalPediclllaris racemosa h.t. Abies lasiocarpalCarex rossii h.t. A gentle easterly bench in the Granite Creek drainage north ot Banderant. Wyo. Pachistima myrsinites phase A steep north slope in 51. Charles Canyon, Bear River Range (2 396 m, 7,860 It). Fire· A gentle south slope in the Granite Creek drainage north of Bondurant, Wyo. (1 982 m. A moderately steep north slope in the Wyoming Range west of Big Piney, Wyo. A gentle north slope in the Albion Range east of Oakley, Idaho (2 256 m. 7,400 ft). A (2 122 m, 6.960 It). Pinus conforta and Picea dominate an understory of Abies. Spiraea scarred Pseudotsuga dominates the site; young Abies are scattered throughout the 6.500 tt). An open stand of Pinus contorta ard Abies codominate the site. Patches of (2591 m, 8,500 ft.). A mixture of Picea and Abies dominate the site. Pedicularis is the few Pinus contorta and Populus tremuloides are scattered throughout this multi-age has the greatest coverage in the undergrowth. A gentle northeast slope in the Big Hole Mountains west of Driggs, Idaho (2 104 m, stand. Pachistima and Berberis torm a prominent layer in the undergrowth. Juniperus are scattered throughout the stand. Arnica cordi/olia is the prominent forb. most prominent undergrowth species. stand of Abies lasiocarpa. Carex rossii dominates a rather sparse undergrowth. 6,900 It). Pseudotsuga dominates smaller Abies in the stand. Both Cafamagrostis and Pachistima are abundant throughout the undergrowth.

Pinus albicaulislVaccinium scoparium hot. Pinus albicaulislJuniperus communis hot., Pinus albicaulislJuniperus communis h.t., Pinus albicaulis/Carex rossii h.t., Pinus albicaullslCarex rossll hot., Pinus albicaulis/Festuca idahoensis h.t. A gentle east slope In the Wind River Range southwest of Crowheart, Wyo. (3 055 m, Shepherdia canadensis phase Juniperus communis phase Pinus contorta phase Carex rossii phase A gentle windswept hilltop in the Wind River Range west of Dubois, Wyo. (2 696 m, 10,020 ft). A mature stand of Pinus alblcaulls with scaltered P. contorts dominates the 9,500 ft~ A pure stand of Pinus albicaulis dominates the site. Festuca idshoensis and site. Vacclnlum scoparlum forms a prominent layer I n the undergrowth. A nearly flat northwesterly exposure at the southern tip of the Wind River Range A gentle west slope in the Wind River Range southwest of Lander, Wyo. (2 591 m , A nearly flat southwesterly slope in the Wind River Range south of Lander, Wyo. A gentle easterly slope in the Wind River Range southwest of Crowheart, Wyo. Lupinus wyethii are the major components of the undergrowth. (2454 m, 8,050 It). This pole-size stand of Pinus contorta contains scattered P. 8,500 It). This open stand of Pinus contorta contains P. albicaulis scattered (2697 m. 8,850 ft~ An open stand of Pinus contorta and scattered P. albicaulis (3 190 m, 10,463 ft). An old multi-aged stand of Pinus albicauJis dominates the site. alblcaulis saplings. Shepherdia canadensis is the prominent component of a throughout. Juniperus communis and Lupinus have the greatest coverage in this dominates the site. Carex rossii, P08 nef1lOS8., and Lupinus argenteus have the highest Carex rossii serves as a characteristic species of this sparse undergrowth. depauperate undergrowth. depauperate undergrowth. frequency in Ihis depauperate undergrowth.

USDA Forest Service, Intermountain Forest and Published as part of - Forest Habitat Types of Eastern Idaho-Western Wyoming, INT GTR-114, 1983 Range Experiment Station