Yucca baccata (1931)
ASPARAGACEAE
Yucca baccata Torr.
U.S.A., New Mexico, Eddy County: Carlsbad Caverns.
Elev. 4400 ft.
Phenology: fruiting.
Accession: RM 131900

Yucca baccata (1958)
ASPARAGACEAE
Yucca baccata Torr.
U.S.A., Arizona, Coconino County: Kaibab National Forest: Fishtail Mesa.
Elev. 6000 ft.
T35N R3W S12
Pinyon-juniper community in sandy loam with Pinus edulis, Juniperus osteosperma and Artemis tridentata. Phenology: vegetative only.
Annotations:
Annotated by Karen Husum Clary in 2002.
1.
Annotated by Jane W. Roller in 2002.
Accession: USFS 442925

Yucca baccata (1900)
ASPARAGACEAE
Yucca baccata Torr.
U.S.A., New Mexico, Dona Ana County: Organ Mountains.
Phenology: flowering.
Accession: RM 226893

U.S.A., New Mexico, Dona Ana County: Organ Mountains.
Phenology: flowering.
Accession: RM 58733

U.S.A., Arizona, Mohave County: Virgin Mountains: ca 5 mi SSE of Mesquite, Nevada; just E of Nevada-Arizona state line.
T39N R16W S32
Larrea/Ambrosia dumosa/Yucca/Opuntia community in gravelly bajada. Phenology: flowering.
with J. E. Neese

U.S.A., New Mexico, Otero County: Sacramento Mountains: Alamogordo, Dry Canyon.
Elev. 4600 ft.
Phenology: flowering.
with H. L. Viereck

U.S.A., New Mexico, Grant County: Burro Mountains.

U.S.A., New Mexico, Grant County: Bear Mountain, near Silver City.

U.S.A., New Mexico, Dona Ana County: Jornada Range Reserve: Lion Den Canyon.
Pinyon-juniper community in rocky soil on a 20 degree west slope with pinyon-juniper, side-oats and weeds; light use. Black and white photo also included. Phenology: flowering.
Annotations:
Annotated by Elbert L. Little Jr. in 1939.
Accession: USFS 442889

U.S.A., Arizona, Gila County: Tonto National Forest: Sierra Ancha Experimental Forest: Parker Creek Canyon; spring.
Phenology: vegetative only.
Accession: RMRS 347

Yucca baccata var. baccata (2005)
Yucca baccata Torr. var. baccata
U.S.A., Arizona, Yavapai County: Coconino National Forest: off Ariz Hwy 260 just ENE of Thirteenmile Rock Butte, ca 11.5 air mi ESE of Camp Verde.
Steep, rocky slopes with scattered juniper and chaparral. Phenology: flowering.
with James F. Fowler
Accession: RM (unaccessioned)

Yucca baccata var. baccata (2005)
Yucca baccata Torr. var. baccata
U.S.A., Arizona, Yavapai County: Coconino National Forest: slopes N of Wet Beaver Creek between the trailhead and Wet Beaver Wilderness, ca 11-12 air mi NE of Camp Verde.
Brushy cacti slopes with scattered juniper on red sandy sandstone slopes with basalt cap. Phenology: flowering.
with James F. Fowler
Accession: RM (unaccessioned)

Yucca baccata var. baccata (2003)
Yucca baccata Torr. var. baccata
U.S.A., Colorado, Archuleta County: Eastern San Juan Mountains: San Juan National Forest: Colo Hwy 151, 6 air mi NW of Forest Road 613.
Sandy at bottom then shale and sandstone outcrops with ponderosa pine forest and scattered Gambel oak and Fendlera understory above; ponderosa pine forest. Phenology: fruiting.
Annotations:
1. Yucca baccata Torr. var. baccata
Annotated by Jeanette Flaig.
with Jeanette Flaig
Accession: RM (unaccessioned)

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: Cerro de la Olla, southeast aspect, ca 10 air mi NE of Questa.
Pinyon/juniper and ponderosa pine/Gambel oak forests. Phenology: flowering.
Accession: RM 943491, Barcode: RM0125053

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Canada de los Commanches, ca 4 air mi E of La Madera.
Sagebrush flats, side drainage and mesa top with pinyon/juniper woodland. Phenology: flowering.
Accession: RM 943531, Barcode: RM0125043

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Forest Road 45, ca 0.5 air mi W of Petaca.
Pinyon/juniper woodland, rocky east aspect, drainages with ponderosa pine. Phenology: fruiting.
Accession: RM 943490, Barcode: RM0125052

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Forest Road 45, ca 0.5 air mi W of Petaca.
Pinyon/juniper woodland, rocky east aspect, drainages with ponderosa pine. Phenology: fruiting.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: NM Hwy 111, Canada de la Cueva, ca 1.5 air mi S of La Madera.
Arroyos and mesa top with pinyon/juniper and Artemisia tridentata. Phenology: flowering.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Jicarilla Ranger District: Bancos Canyon, Forest Road 310.
Artemisia tridentata, sandstone slopes with pinyon/juniper. Phenology: flowering.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Jicarilla Ranger District: Forest Road 309E and 309F in Cabresto Canyon.
Canyon bottom and sandstone slopes with pinyon/juniper. Phenology: flowering.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Jicarilla Ranger District: near west forest boundary on Forest Road 314.
Pinyon/juniper woodland and sandstone canyon rim. Phenology: flowering.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: to SW of NM Hwy 522 and Forest Road 7 (road to D. H. Lawrence Ranch), ca 0.5 air mi.
Pinyon/juniper. Phenology: fruiting.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: Brushy Mountain, southern half.
Pinyon/juniper above, lower slopes with sagebrush and rabbitbrush. Phenology: vegetative only.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: south side of NM Hwy 580 from Dixon to Ojo Sarco, ca 2 air mi SE of Dixon; ca 0.5 air mi S of Canoncito.
Dry wash through pinyon/juniper woodland, Fallugia paradoxa, Oryzopsis hymenoides growing in wash. Phenology: flowering.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: Fernando Mountains: south side of Taos Canyon on Forest Trail 164, South Boundary Trail, ca 3.5 air mi E of Ranchos de Taos.
Pinyon/juniper woodland hills with Ptelea trifoliata, Poa fendleriana and prickly pear cactus. Phenology: flowering.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: Picuris Pueblo Indian Reservation: canyon east of Picuris Canyon, ca 2 air mi NE of Picuris Pueblo, ca 4 air N of Penasco.
South aspect slope above canyon, pinyon/juniper woodland with Cercocarpus montanus, Yucca baccata and disturbed open slope. Phenology: flowering.
with Cheryl Archuleta

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: NM Hwy 68 southwest of Taos at Arroyo Hondo, down Stream towards Rio Grande.
Half way down canyon. Phenology: vegetative only.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: east side of NM Hwy 68, southwest of Pilar; to ca 0.6 air mi E.
In drain. Phenology: flowering.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: ca 6 air mi SE of Dixon.
Sandy draw and stream bottom. Phenology: flowering.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: La Segita Peaks, northwest peak.
Pinyon/juniper covered slopes with openings, volcanic rock outcrops. Phenology: vegetative only.

U.S.A., Colorado, Montrose County: San Miguel and Lower Dolores River Drainages: Calamity Draw, ca 0.3 mi from Colo Hwy 141 near Nucla.
Dry area with sandstone ledges. Phenology: flowering.
Accession: (unaccessioned)

U.S.A., Colorado, Mesa County: San Miguel and Lower Dolores River Drainages: West Creek on Unaweep Divide.
Dry creek bed, from above spring to cliff base. Phenology: fruiting.
with Laura Cosse
Accession: (unaccessioned)

U.S.A., Colorado, Montezuma County: Upper Dolores River Drainage and Adjacent Areas: Mockingbird Mesa, ca 1.5 road mi S of the intersection of County Road 11 and County Road Y, ca 18.25 air mi S of Dove Creek.
Elev. 1900 m.
Pinyon-juniper zone with Artemisia, antelope brush, Amelanchier, and Cercocarpus in cryptogamic soil. Phenology: flowering.
Accession: (unaccessioned)

U.S.A., Colorado, Montrose County: Upper Dolores River Drainage and Adjacent Areas: Wild Steer Mesa, off County Road FF16 to County Road EE16, ca 15 air mi SW of Nucla.
Elev. 2050 m.
North-facing pinyon-juniper-sagebrush hill and mesa top. Phenology: flowering.

U.S.A., Colorado, Montezuma County: Upper Dolores River Drainage and Adjacent Areas: ca 13 air mi W of Cortez, County Road N, north end of Sand Canyon.
Pinyon-juniper, Amelanchier, Purshia, and Cercocarpus on cryptogrammic soil and rimrock pavement; anasazi ruins present; east facing slopes. Phenology: flowering.

U.S.A., Colorado, Montezuma County: [location and coordinates withheld]
Pinyon-juniper woodland, Amelanchier, Cercocarpus, and Artemisia; north-northwest-facing slopes, and seepage area. Phenology: flowering.

U.S.A., Colorado, Montezuma County: Upper Dolores River Drainage and Adjacent Areas: ca 2 air mi E of Cortez, NW of Montezuma County Fairgrounds, along McElmo Creek.
Pinyon-juniper, Artemisia, and rabbitbrush along creek with selenium odor; south-facing slopes. Phenology: flowering.

U.S.A., Colorado, Montrose County: Upper Dolores River Drainage and Adjacent Areas: ca 21 air mi WNW of Naturita along La Sal Creek at the Cliff Dweller Mine, County Road X4, SE of Colo. Hwy 90.
Boxelder, Fraxinus, pinyon-juniper, ponderosa, and poison ivy; riparian zone along creek and north facing canyon slopes and walls. Phenology: flowering.

U.S.A., Colorado, San Miguel County: Upper Dolores River Drainage and Adjacent Areas: ca 15 air mi NE of Dove Creek, Disappointment Valley, County Road 19.Q, Dawson Draw.
Pinyon-juniper, Artemesia, and oak on north facing slope of an old burn site. Phenology: flowering.

U.S.A., New Mexico, Sandoval County: Santa Fe National Forest and Vicinity: Jemez Mountains: Forest Road 485 at junction with Forest Road 652, 2 air mi NNW of Gilman.
Rocky slopes. Phenology: vegetative only.

U.S.A., New Mexico, Santa Fe County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: headwaters of Padre Spring Creek on Forest Road 326, 3.5 air mi S of Glorieta.
A broad, shallow grassy drainage running SE, slope of ca 2 deg, with pinyon/juniper encroaching from surrounding ridges; growing on juniper. Phenology: flowering.

U.S.A., New Mexico, Sandoval County: Santa Fe National Forest and Vicinity: Jemez Mountains: Arroyo Montasa canyon, 1 air mi up canyon from junction with the Rio Grande River and across river from Bandelier National Monument. N35.716 W106.251, W 0.3 air mi to N35.716 W106.256 at pour off.
Riparian bottom; steep, metamorphoic canyon walls with juniper . Phenology: fruiting.

U.S.A., New Mexico, San Miguel County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Sebadilla Creek S of Flying Cloud Ranch, 3 air mi SSW of Barillas Peak; up creek 0.5 air mi.
Narrow riparian corridor in canyon bottom, canyon surrounded by mixed conifer forest; granite bluffs and bedrock constrictions. Phenology: flowering.

U.S.A., New Mexico, Santa Fe County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Tesuque Creek on Winsor Trail 254, 3 air mi SE of Tesuque. N35.745 W105.888 SW 0.5 air mi on trail to N35.743 W105.896.
Trailside on south-facing pinyon/juniper woodland slope of ca 25 deg and with coarse, eroding granitic. Phenology: flowering.

U.S.A., New Mexico, Rio Arriba County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Arroyo de los Encinos, 3.5 air mi ENE of Chimayo; from small springs and mature cottonwoods at base of sedimentary formation/cliffs to S 0.3 air mi in dry wash.
Desert shrubland with spring above and narrow, excised dry wash through soft sediment below. Phenology: fruiting.

U.S.A., New Mexico, Santa Fe County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Rio en Medio Trail 163, 4.5 air mi NE of Tesuque.
Trailside and old roadbed through canyon bottom in ponderosa pine forest. Phenology: fruiting.

U.S.A., New Mexico, Santa Fe County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Juan de Gabaldon Grant: Bear Wallow Trail 182, 5.5 air mi E of Tesuque.
Southwest-facing, fairly open canyon slope of mixed conifers and granitic gravel substrate. Phenology: fruiting.

U.S.A., New Mexico, Santa Fe County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Glorieta Mesa: Forest Road 326 at west forest boundary, within 0.3 air mi of N35.517 W105.804.
Pinyon-juniper woodland with open, park-like grassy drainages. Phenology: flowering.
1. Yucca baccata Torr. var. baccata
Annotated by Ronald L. Hartman.

U.S.A., New Mexico, Santa Fe County: Santa Fe National Forest and Vicinity: Glorieta Mesa: vicinity of S F Jacinto bench mark, ca 5 air mi W of Rowe.
Rocky peak and disturbed areas below. Phenology: vegetative only.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: Redondo Border, ca 1.5 air mi E to ESE at southwest gate to NM Hwy 4.
Oak and ponderosa pine woodland to large rock outcrops with pinyon pine and Yucca baccata. Phenology: fruiting.

U.S.A., New Mexico, Colfax County: Raton.
Phenology: vegetative only.

U.S.A., New Mexico, Sandoval County: Jemez Canyon.
Cliffs. Phenology: fruiting.

U.S.A., Colorado, Montrose County: Region of the Gunnison Watershed: Cimarron.
Phenology: vegetative only.
1. Yucca baccata Torr. var. baccata
Annotated by Edward L. Greene.

U.S.A., Colorado, Mesa County: West Creek: 9 mi NE of Gateway; ca 8 air mi E of Utah border.
Pinyon-Cercocarpus community on steep, rocky slope in igneous gravel. Phenology: flowering & fruiting.

U.S.A., Colorado, Montrose County: Naturita.
Dry hillside. Phenology: vegetative only.

U.S.A., Colorado, Archuleta County: Piedra: Chimney Rock Mesa.
Phenology: fruiting.

U.S.A., Colorado, Montezuma County: Mesa Verde National Park: near Spruce Tree Camp.

U.S.A., New Mexico, Colfax County: Philmont Scout Ranch, near Cimarron: Ponil Road, near entrance to Corral Canyon.
Common on dry, rocky, south exposure. Phenology: flowering & fruiting.

U.S.A., New Mexico, Colfax County: Philmont Scout Ranch, near Cimarron: Cimarron Canyon, 2 mi NW of junction with Turkey Creek Canyon.
Common on dry, rocky, south exposure. Phenology: fruiting.

U.S.A., Colorado, Montrose County: 7 mi NE of Nucla.
T47N R14W
Pinyon-juniper association. Phenology: fruiting.

U.S.A., Colorado, La Plata County: Between Bayfield and Yellowjacket Pass.
with C. F. Livingston

U.S.A., Colorado, Montezuma County: Sleeping Ute Mountain: 7 mi W of Cortez.
Canyon side on north base of mountain. Phenology: flowering.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: slope on northeast side of Vermejo Road 1.4 road mi SE of Casa Grande; northeast side of Vermejo River.
Steep southwest-facing slope of broken sandstone, with scattered Pinus edulis. Flowers creamy-white, in a dense branched terminal inflorescence ca. 60 cm long; leaves in a large basal rosette; plants scattered and uncommon. Photographed. Phenology: flowering.
Annotated by Ben Legler on 4/6/2008.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: northern-most hill in Cedar Hills, 9.8 air mi E of Cimarron.
Small hill of eroding shale and sandstone capped by conglomerate, with scattered Juniperus monosperma and Cercocarpus montanus. Leaves in large rounded rosettes; plants frequent on north and east sides of hill; all sterile. Phenology: vegetative only.
Annotated by Ben Legler on 4/6/2008.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: on bluff 1.2 mi due E of old Koehler mining town; 14 air mi SW of Raton.
Steep, south-facing sandstone bluff with fine scree, among woodland of Juniperus monosperma and Pinus edulis; dry soil. Leaves in large rounded rosettes; most plants sterile; frequent on rocky slopes and scree. Photographed. Phenology: fruiting.
Annotated by Ben Legler on 4/6/2008.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: rocky promitory on north side of Ponil Creek 3.2 air mi E of Cimarron.
Gently sloping rocky hill on shortgrass prairie, with sparse herbaceous vegetation and scattered Rhus aromatica var. trilobata, Cercocarpus montanus, Cylindropuntia imbricata; dry soil. Leaves forming large rosettes; a few plants on rocky slope, all sterile. Phenology: vegetative only.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: small wash on west side of Gardiner Road (County Road 20A) 0.4 mi N of junction with NM Hwy 555; 3.0 air mi SW of Raton.
Dry sandy wash, still moist from recent rains, among pinyon-juniper woodland, with Rhus trilobata, Quercus ×undulata, Helianthus annuus. Leaves many from a large basal rosette; plants all sterile; scattered on slopes around wash. Phenology: vegetative only.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: south-facing slope on north side of Vermejo Park, 2.9 air mi NW of Casa Grande and 1.1 air mi ESE of Bartlett Mine.
Steep loose rock slide and fine scree, with scattered Pinus edulis, Cercocarpus montanus, Bromus richardsonii, other grasses. Leaves all basal, forming a large rounded rosette; all sterile; occasional around conifers. Phenology: vegetative only.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: low hills on south side of Ponil Creek, 3.9 air mi ESE of Cimarron.
Dry, gravelly hills with Quercus ×undulata, Opuntia phaeacantha, Cylindropuntia imbricata, Chrysothamnus nauseosus. Several sterile plants around oaks; leaves in small basal rosette. Specimen GPS: 36.494595, -104.84761. Phenology: vegetative only.

U.S.A., Colorado, Las Animas County: Vermejo Park Ranch: small side canyon off south side of Joe Baker Canyon 1/2 air mi upstream from (southeast of) junction with Long Canyon; 14.9 air mi SW of Trinidad; on south side of stream channel.
Narrow rocky canyon, dry streambed; with Quercus gambelii, Prunus virginiana, Roninia neomexicana; surrounded by Pseubotsuga menziesii forest. Leaves in large basal rosettes; occasional on dry scree slope. Specimen GPS: 36.996147, -104.692657. Phenology: vegetative only.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: slope on north side of an unnamed canyon on south side of Middle Ponil Creek 4.9 air mi NE of summit of Baldy Mountain and 24.9 air mi NW of Cimarron.
Dry rocky south-facing slope dominated by thickets of Quercus ×undulata, with scattered conifers. Leaves in large rosettes; occasional at top of small cliff. Specimen GPS: 36.676067, -105.144989. Phenology: vegetative only.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: slopes on north side of Gachupin Canyon 6.1 air mi ESE of Marys Lake.
Dry open conifer woodland with Pinus edulis, Juniperus scopulorum, Pinus ponderosa; sparse grass groundcover. Leaves in basal rosettes; uncommon. Specimen GPS: 36.824795, -104.985336. Phenology: vegetative only.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: in head of Taber Morey Canyon; 12.8 air mi WNW of Raton.
Gently rolling canyon bottom with mix of open grassy areas and patches of mature Quercus gambelii and shrubby Robinia neomexicana. Leaves u-shaped in cross section, in large basal rosette; a few plants on small rock outcrop. Specimen GPS: 36.953106, -104.659882. Phenology: vegetative only.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: slopes on south side of Prairie Crow Canyon 2.6 air mi W of Koehler.
Dry steep rocky slopes with mix of shrubby Quercus and Pinus edulis, adjacent slopes with Pseudotsuga menziesii and Pinus ponderosa. Tepals cream-colored; inflorescence shorter than the leaves; leaves in large basal rosettes; common. Specimen GPS: 36.738171, -104.664467. Phenology: flowering.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: slope on north side of Harry Bremmer Canyon 2.3 air mi SW of Marys Lake.
Steep, south facing slope with sandstone boulders, shrubby Quercus gambelii, scattered Pinus edulis, Juniperus scopulorum, Pseudotsuga menziesii, and Pinus ponderosa; groundcover of sparse grasses, Heterotheca villosa, Apocynum. Leaves basal in large rosette; uncommon. Specimen GPS: 36.8274, -105.128029. Phenology: vegetative only.

U.S.A., Colorado, Huerfano County: [location and coordinates withheld]
Pinyon-juniper forest. Phenology: vegetative only.

U.S.A., Colorado, Las Animas County: [location and coordinates withheld]
West side of canyon in pinyon-juniper. Phenology: vegetative only.
with Elizabeth Mark

U.S.A., Colorado, Mesa County: Uncompahgre Plateau: Unaweep Canyon, Colo Hwy 141 right-of-way along East Creek, ca 8 road mi SE of Unaweep Divide, ca 15 air mi SW of Whitewater.
Steep, granitic hillside above creek. Phenology: flowering.
1. Yucca baccata Torr. var. baccata .

Yucca baccata var. brevifolia (1940)
Yucca baccata Torr. var. brevifolia (Schott ex Torr.) L. D. Benson & Darrow
U.S.A., Arizona, Cochise County: San Pedro Valley: Tucson-Redington road.
T11S18E R S34