Detailed Area Plant List for Mesquite Mountains, San Bernardino County, United States.

Edited by Tom Schweich

This list is assembled from personal collections, herbarium vouchers, and published lists.In particular, much of the data is provided by the participants of the Consortium of California Herbaria (http://ucjeps.berkeley.edu/consortium/).

For a complete list of Locations included in this Area List, see the Locations Included section, below.

For a summary of distribution information, with photographs and online queries, please see: Area List for Mesquite Mountains, San Bernardino County, United States.

For a check list, please see: Check List for Mesquite Mountains, San Bernardino County, United States.

CalPhotos

Amaranthaceae

Grayia spinosa (Hook.) Moq.  Spiny Hop Sage.
Mesquite Mountains, On northwest facing slopes, off Kingston Road 1.70 mi (2.75 km) north northeast of Winters Pass, 69 km southwest of Las Vegas, Nevada. Tom Schweich 375. 4/22/2004 ( Alameda ) On northwest facing slopes, off Kingston Road 1.70 mi (2.75 km) north northeast of Winters Pass, 69 km southwest of Las Vegas, Nevada. Tom Schweich 374. 4/22/2004 ( Alameda ) . . CalPhotos

Krascheninnikovia lanata (Pursh) A. D. J. Meeuse & Smit.  Winter Fat.
Mesquite Mountains, Northwest-facing dip slope on limestone, 2.64 mi (4.25 km) northeast of Winters Pass. Tom Schweich 370. 4/22/2004 ( Alameda ) Northwest-facing dip slope on limestone, 2.64 mi (4.25 km) northeast of Winters Pass, 68 km southwest of Las Vegas, Nevada. Tom Schweich 371. 4/22/2004 ( Alameda ) . . CalPhotos

Asteraceae

Ambrosia eriocentra (A. Gray) Payne.  Wooly Bur-Sage.
Mesquite Mountains, Common in washes. Tom Schweich 4/22/2004 . . CalPhotos

Calycoseris .  Tackstem.
Mesquite Mountains, In Creosote Bush scrub, just west of the Winters Pass Hills, on Kingston Road, climbing to Winters Pass in the Mesquite Mountains. Tom Schweich 331. 4/20/2004 ( Alameda ) . . CalPhotos

Chaenactis .  Pincushion.
Mesquite Mountains, In Creosote Bush scrub, just west of the Winters Pass Hills, on Kingston Road, climbing to Winters Pass in the Mesquite Mountains. Tom Schweich 330. 4/20/2004 ( Alameda ) . . CalPhotos

Eriophyllum .  Woolly Sunflower.
Mesquite Mountains, Tom Schweich 340. 4/20/2004 ( Alameda ) . . CalPhotos

Eriophyllum wallacei (A. Gray) A. Gray.  Woolly Wasterbonnets.
Mesquite Mountains, In Creosote Bush scrub, on Kingston Road, south of the Winters Pass Hills, 13 mi (20.9 km) north of Valley Wells, 5.2 mi (8.4 km) south southwest of Winters Pass, near the Mesquite Mountains. Tom Schweich 340.2 4/20/2004 ( Alameda ) . . CalPhotos

Hymenoclea salsola A. Gray.  Cheese Bush.
Mesquite Mountains, In Creosote Bush scrub, just west of the Winters Pass Hills, on Kingston Road, climbing to Winters Pass in the Mesquite Mountains. Tom Schweich 333. 4/20/2004 ( Alameda UC(TAS) ) . . CalPhotos

Porophyllum gracile Benth.  Odora.
Mesquite Mountains, Near Kingston Road, 2.25 mi (3.62 km) north northeast of Winters Pass, 69 km southwest of Las Vegas, Nevada. Tom Schweich 379. 4/22/2004 ( Alameda ) . . CalPhotos

Undetermined .  Asteraceae Family.
Mesquite Mountains, Alongside the road, 2.15 mi (3.46 km) northeast of Winters Pass on Kingston Road, near the rock shelter and cattle guard. Tom Schweich 354. 4/20/2004 ( Alameda ) . Winters Pass, Winters Pass is on Kingston Road where it passes through the Mesquite Mountains. Plants were found on stony-mantled ground on the small hill just north of the pass. Tom Schweich 342. 4/20/2004 ( Alameda ) Winters Pass is on Kingston Road where it passes through the Mesquite Mountains. Plants were found on stony-mantled ground on the small hill just north of the pass. Tom Schweich 348. 4/20/2004 ( Alameda ) . . CalPhotos

Bignoniaceae

Chilopsis linearis (Cav.) Sweet ssp. arcuata (Fosb.) Henrickson.  Desert Willow.
Mesquite Mountains, Occasional in washes. Tom Schweich 4/22/2004 . . CalPhotos

Boraginaceae

Amsinckia .  Fiddleneck.
Winters Pass, Winters Pass is on Kingston Road where it passes through the Mesquite Mountains. Plants were found on stony-mantled ground on the small hill just north of the pass. Tom Schweich 343. 4/20/2004 ( Alameda ) . . CalPhotos

Cryptantha .  Cryptantha.
Winters Pass, Winters Pass is on Kingston Road where it passes through the Mesquite Mountains. Plants were found on stony-mantled ground on the small hill just north of the pass. Tom Schweich 347. 4/20/2004 ( Alameda ) . Mesquite Mountains, Alongside the road, 2.15 mi (3.46 km) northeast of Winters Pass on Kingston Road, near the rock shelter and cattle guard, 69 km southwest of Las Vegas, Nevada. Tom Schweich 380. 4/22/2004 ( Alameda ) . . CalPhotos

Nama demissum A. Gray var. demissum.  Desert Purple Mat.
Mesquite Mountains, On cherry stem road west from Kingston Road, 1.3 m (2.1 km) north of Winters Pass, 71 km southwest of Las Vegas, NV. Tom Schweich 382. 4/22/2004 ( UC(TAS) ) . . CalPhotos

Pectocarya .  Combseed.
Mesquite Mountains, Growing in gravel on southeast facing slope. On the ridge east of Winters Pass, approximately 600 m from Kingston Road. Tom Schweich 445. 4/20/2005 ( Alameda ) . . CalPhotos

Pectocarya platycarpa (Munz & I.M. Johnst.) Munz & I.M. Johnst.  Broad-Fruited Combseed.
Mesquite Mountains, 2.9 mi (4.6 km) northeast of Winters Pass on south side of Kingston Road, 69 km southwest of Las Vegas, Nevada. Tom Schweich 368. 4/22/2004 ( UC(TAS) ) . . CalPhotos

Phacelia .  Phacelia.
Mesquite Mountains, Alongside the road, 2.15 mi (3.46 km) northeast of Winters Pass on Kingston Road, near the rock shelter and cattle guard. Tom Schweich 355. 4/20/2004 ( Alameda ) Growing in a buff-colored limestone gravel. In saddle, 2.75 km east of Winters Pass. Tom Schweich 452. 4/21/2005 ( Alameda ) Tom Schweich 321. 5/27/2003 ( Alameda ) Growing in gravel on southeast facing slope. On the ridge east of Winters Pass, approximately 400 m from Kingston Road. Tom Schweich 443. 4/20/2005 ( Alameda ) . . CalPhotos

Phacelia crenulata Torrey var. crenulata.  Cleftleaf Wildheliotrope.
Mesquite Mountains, Alongside the road, 1.7 mi (2.7 km) northeast of Winters Pass on Kingston Road, 68 km southwest of Las Vegas, Nevada. Tom Schweich 357. 4/20/2004 ( Alameda ) On gravel bench or strath in limestone canyon, 2.9 mi (4.6 km) northeast of Winters Pass on south side of Kingston Road. Tom Schweich 362. 4/22/2004 ( Alameda ) . . CalPhotos

Tiquilia canescens (DC.) A. T. Richardson var. canescens.  Woody Crinklemat.
Mesquite Mountains, On top of a small hill, growing in dark limestone outcrops, 1.7 km east of Winters Pass Tom Schweich 450. 4/20/2005 ( Alameda ) . . CalPhotos

Cactaceae

Ferocactus cylindraceus (Engelm.) Orc.  Barrel Cactus.
Mesquite Mountains, Tom Schweich 4/22/2004 . . CalPhotos

Mammillaria tetrancistra Engelm.  Foxtail Cactus.
Mesquite Mountains, On the limestone outcrop, east side of mountains, north side of road. Tom Schweich 4/20/2004 . . CalPhotos

Opuntia acanthocarpa Engelm. & J. Bigelow var. coloradensis L. Benson.  Buckhorn Cholla.
Mesquite Mountains, Tom Schweich 4/22/2004 . . CalPhotos

Opuntia basilaris Engelm. & J. Bigelow.  Beavertail Cactus.
Mesquite Mountains, Growing in gravel on limestone ridge. On the ridge east of Winters Pass, approximately 1000 m from Kingston Road. Tom Schweich 449. 4/20/2005 ( Alameda ) . . CalPhotos

Caryophyllaceae

Achyronychia cooperi Torrey & A. Gray.  Frost Mat.
Mesquite Mountains, On disturbed ground, along Kingston Road, 3.6 mi (5.7 km) northeast of Winters Pass. Tom Schweich 350. 4/20/2004 ( Alameda ) . . CalPhotos

Arenaria macradenia S. Watson.  (=Eremogone macradenia (S. Watson) Ikonn.) Desert Sandwort.
Mesquite Mountains, Northwest-facing dip slope on limestone, 2.64 mi (4.25 km) northeast of Winters Pass. Tom Schweich 372. 4/22/2004 ( Alameda ) . . CalPhotos

Celastraceae

Mortonia utahensis (Trel.) Nelson.  Utah Mortonia.
Mesquite Mountains, Alongside the road, 2.15 mi (3.46 km) northeast of Winters Pass on Kingston Road, near the rock shelter and cattle guard. Tom Schweich 353. 4/20/2004 ( Alameda UC(TAS) ) . . CalPhotos

Euphorbiaceae

Chamaesyce albomarginata (Torrey & A. Gray) Small.  Rattlesnake Weed.
Mesquite Mountains, Along the old road east from Winters Pass to the saddle overlooking Mesquite Valley. Tom Schweich 4/21/2005 . . CalPhotos

Fabaceae (Leguminosae)

Lupinus .  Lupine.
Winters Pass, Winters Pass is on Kingston Road where it passes through the Mesquite Mountains. Plants were found on stony-mantled ground on the small hill just north of the pass. Tom Schweich 344. 4/20/2004 ( Alameda ) . . CalPhotos

Psorothamnus .  Indigo Bush.
Mesquite Mountains, 2.9 mi (4.6 km) northeast of Winters Pass on south side of Kingston Road, 68 km southwest of Las Vegas, Nevada. Tom Schweich 366. 4/22/2004 ( Alameda ) On disturbed ground, along Kingston Road, 3.6 mi (5.7 km) northeast of Winters Pass. Tom Schweich 352. 4/20/2004 ( Alameda ) . . CalPhotos

Geraniaceae

Erodium .  Cranesbill.
Winters Pass, Winters Pass is on Kingston Road where it passes through the Mesquite Mountains. Plants were found on stony-mantled ground on the small hill just north of the pass. Tom Schweich 349. 4/20/2004 ( Alameda ) . . CalPhotos

Krameriaceae

Krameria erecta Schultes.  Pima Rhatany.
Mesquite Mountains, 2.9 mi (4.6 km) northeast of Winters Pass on south side of Kingston Road, 68 km southwest of Las Vegas, Nevada. Tom Schweich 365. 4/22/2004 ( Alameda UC(TAS) ) . . CalPhotos

Lamiaceae (Labiatae)

Salazaria mexicana Torrey.  Mexican Bladder Sage.
Mesquite Mountains, Alongside the road, 1.7 mi (2.7 km) northeast of Winters Pass on Kingston Road. Tom Schweich 359. 4/20/2004 ( Alameda ) . . CalPhotos

Salvia dorrii (Kellogg) Abrams ssp. pilosa (A. Gray) J. L. Strachan & Rev.  (Syn: Ramona pilosa (A. Gray) Abrams ) Purple Sage.
Mesquite Mountains, Near Kingston Road, 2.25 mi (3.62 km) north northeast of Winters Pass, 69 km southwest of Las Vegas, Nevada. Tom Schweich 376. 4/22/2004 ( Alameda ) Alongside the road, 1.7 mi (2.7 km) northeast of Winters Pass on Kingston Road. Tom Schweich 358. 4/20/2004 ( Alameda ) . . CalPhotos

Salvia mohavensis E. Greene.  Mohave Sage.
Mesquite Mountains, Northwest-facing dip slope on limestone, 2.64 mi (4.25 km) northeast of Winters Pass. Tom Schweich 373. 4/22/2004 ( Alameda ) . . CalPhotos

Loasaceae

Eucnide urens (A. Gray) C. Parry.  Rock Nettle.
Mesquite Mountains, On the limestone outcrop, east side of mountains, north side of road. Tom Schweich 4/20/2004 . . CalPhotos

Malvaceae

Sphaeralcea ambigua A. Gray.  Apricot Mallow.
Mesquite Mountains, Near Kingston Road, 2.25 mi (3.62 km) north northeast of Winters Pass, 69 km southwest of Las Vegas, Nevada. Tom Schweich 378. 4/22/2004 ( Alameda ) . . CalPhotos

Nyctaginaceae

Allionia incarnata L.  Windmills.
Mesquite Mountains, On gravel bench or strath in limestone canyon, 2.9 mi (4.6 km) northeast of Winters Pass on south side of Kingston Road, 68 km southwest of Las Vegas, Nevada. Tom Schweich 361. 4/22/2004 ( Alameda ) . . CalPhotos

Mirabilis laevis (Benth.) Curran var. villosa (Kellogg) Spellenb.  (Syn: Mirabilis bigelovii A. Gray var. bigelovii ) Wishbone Bush.
Mesquite Mountains, 2.9 mi (4.6 km) northeast of Winters Pass on south side of Kingston Road, 68 km southwest of Las Vegas, Nevada. Tom Schweich 363. 4/22/2004 ( Alameda ) . . CalPhotos

Oleaceae

Menodora spinescens A. Gray.  Spiny Desert Olive.
Mesquite Mountains, Growing in gravel on southeast facing slope. On the ridge east of Winters Pass, approximately 200 m from Kingston Road. Tom Schweich 441. 4/20/2005 ( Alameda ) . . CalPhotos

Onagraceae

Camissonia .  Sun Cup.
Mesquite Mountains, Growing in gravel on limestone ridge. On the ridge east of Winters Pass, approximately 800 m from Kingston Road. Tom Schweich 447. 4/20/2005 ( Alameda ) . . CalPhotos

Camissonia brevipes (A. Gray) Raven ssp. brevipes.  Yellow Cup.
Mesquite Mountains, 2.9 mi (4.6 km) northeast of Winters Pass on south side of Kingston Road, 68 km southwest of Las Vegas, Nevada. Tom Schweich 364. 4/22/2004 ( Alameda ) . . CalPhotos

Orobanchaceae

Orobanche .  Broom Rape.
Mesquite Mountains, Among boulders in dark limestone, west-facing slope, near top of Mesquite Mountains. Tom Schweich 456. 4/21/2005 ( Alameda ) . . CalPhotos

Phrymaceae

Mimulus .  Monkeyflower.
Mesquite Mountains, Tom Schweich 319. 5/27/2003 ( Alameda ) . . CalPhotos

Mimulus bigelovii (A. Gray) A. Gray var. bigelovii.  Bigelow's Monkeyflower.
Mesquite Mountains, On cherry stem road west from Kingston Road, 1.3 m (2.1 km) north of Winters Pass. 71 km southwest of Las Vegas, Nevada. Tom Schweich 383. 4/22/2004 ( UC(TAS) ) . . CalPhotos

Plantaginaceae

Plantago ovata Forsskal.  Desert Indian-Wheat.
Mesquite Mountains, 2.9 mi (4.6 km) northeast of Winters Pass on south side of Kingston Road, 68 km southwest of Las Vegas, Nevada. Tom Schweich 369. 4/22/2004 ( UC(TAS) ) . . CalPhotos

Polemoniaceae

Gilia .  Gilia.
Mesquite Mountains, Growing in gravel on southeast facing slope. On the ridge east of Winters Pass, approximately 500 m from Kingston Road. Tom Schweich 444. 4/20/2005 ( Alameda ) Growing in a buff-colored limestone gravel. In saddle, 2.75 km east of Winters Pass. Tom Schweich 451. 4/21/2005 ( Alameda ) . . CalPhotos

Langloisia setosissima (Cov.) S. Timbrook ssp. punctata.  Lilac Sunbonnet.
Mesquite Mountains, In open areas on a stony south-facing slope of the Winters Pass Hills, 16.2 mi (26.1 km) north of Valley Wells, 2.1 mi (3.4 km) south southwest of Winters Pass. Tom Schweich 341. 4/20/2004 ( Alameda ) . . CalPhotos

Linanthus demissus (A. Gray) E. Greene.  Desert Snow.
Mesquite Mountains, Growing in gravel in open areas, common. On the ridge east of Winters Pass, approximately 100 m from Kingston Road. Tom Schweich 440. 4/20/2005 ( Alameda ) . . CalPhotos

Polygonaceae

Chorizanthe .  Spineflower.
Mesquite Mountains, In Creosote Bush scrub, just west of the Winters Pass Hills, on Kingston Road, climbing to Winters Pass in the Mesquite Mountains. Tom Schweich 336. 4/20/2004 ( Alameda ) In Creosote Bush scrub, just west of the Winters Pass Hills, on Kingston Road, climbing to Winters Pass in the Mesquite Mountains. Tom Schweich 340.1 4/20/2004 ( Alameda ) . . CalPhotos

Chorizanthe rigida (Torrey) Torrey & A. Gray.  Spiny Herb.
Winters Pass, Winters Pass is on Kingston Road where it passes through the Mesquite Mountains. Plants were found on stony-mantled ground on the small hill just north of the pass. Tom Schweich 345. 4/20/2004 ( Alameda UC(TAS) ) . . CalPhotos

Eriogonum .  Buckwheat.
Mesquite Mountains, In Creosote Bush scrub, just west of the Winters Pass Hills, on Kingston Road, climbing to Winters Pass in the Mesquite Mountains. Tom Schweich 332. 4/20/2004 ( Alameda ) Tom Schweich 320. 5/27/2003 ( Alameda ) . Winters Pass, Tom Schweich 385. 4/22/2004 ( Alameda ) . Mesquite Mountains, Growing in gravel on southeast facing slope. On the ridge east of Winters Pass, approximately 700 m from Kingston Road. Tom Schweich 446. 4/20/2005 ( Alameda ) . . CalPhotos

Eriogonum inflatum Torrey & Fremont.  Desert Trumpet.
Mesquite Mountains, In Creosote Bush scrub, just west of the Winters Pass Hills, on Kingston Road, climbing to Winters Pass in the Mesquite Mountains. Tom Schweich 338. 4/20/2004 ( Alameda UC(TAS) ) . . CalPhotos

Oxytheca .  Oxytheca.
Mesquite Mountains, Growing in gravel on limestone ridge. On the ridge east of Winters Pass, approximately 900 m from Kingston Road. Tom Schweich 448. 4/20/2005 ( Alameda ) . . CalPhotos

Undetermined .  Buckwheat Family.
Winters Pass, Winters Pass is on Kingston Road where it passes through the Mesquite Mountains. Plants were found on stony-mantled ground on the small hill just north of the pass. Tom Schweich 346. 4/20/2004 ( Alameda ) . . CalPhotos

Rosaceae

Coleogyne ramosissima Torrey.  Blackbrush.
Mesquite Mountains, Growing in gravel on southeast facing slope. On the ridge east of Winters Pass, approximately 300 m from Kingston Road. Tom Schweich 442. 4/20/2005 ( Alameda ) . . CalPhotos

Rubiaceae

Galium .  Bedstraw.
Mesquite Mountains, Among boulders in dark limestone, west-facing slope, near top of Mesquite Mountains. Tom Schweich 454. 4/21/2005 ( Alameda ) . . CalPhotos

Scrophulariaceae

Castilleja .  Indian Paintbrush.
Mesquite Mountains, Near Kingston Road, 2.25 mi (3.62 km) north northeast of Winters Pass, 69 km southwest of Las Vegas, Nevada. Tom Schweich 377. 4/22/2004 ( Alameda ) . . CalPhotos

Penstemon palmeri A. Gray ssp. palmeri.  Wild Pink Snapdragon.
Mesquite Mountains, 2.9 mi (4.6 km) northeast of Winters Pass on south side of Kingston Road, 68 km southwest of Las Vegas, Nevada. Tom Schweich 367. 4/22/2004 Mostly along the road sides. Tom Schweich 4/22/2004 2.9 mi (4.6 km) northeast of Winters Pass on south side of Kingston Road, 68 km southwest of Las Vegas, Nevada. Tom Schweich 367. 4/22/2004 ( Alameda UC(TAS) ) . . CalPhotos

Undetermined .  Unknown Scroph.
Mesquite Mountains, Among boulders in dark limestone, west-facing slope, near top of Mesquite Mountains. Tom Schweich 455. 4/21/2005 ( Alameda ) . . CalPhotos

Solanaceae

Lycium .  Desert Thorn.
Mesquite Mountains, Alongside the road, 2.15 mi (3.46 km) northeast of Winters Pass on Kingston Road, near the rock shelter and cattle guard. Tom Schweich 356. 4/20/2004 ( Alameda ) . . CalPhotos

Lycium cooperi A. Gray.  Peach Thorn.
Mesquite Mountains, In Creosote Bush scrub, just west of the Winters Pass Hills, on Kingston Road, climbing to Winters Pass in the Mesquite Mountains. Tom Schweich 335. 4/20/2004 ( Alameda ) . . CalPhotos

Nicotiana .  Tobacco.
Mesquite Mountains, On limestone outcrop, along Kingston Road, 3.6 mi (5.7 km) northeast of Winters Pass. Tom Schweich 351. 4/20/2004 ( Alameda ) In dark limestone boulders, on a steep, southeast-facing slope, near top of Mesquite Mountains, 2.9 km eastnortheast of Winters Pass. Tom Schweich 453. 4/21/2005 ( Alameda ) . . CalPhotos

Physalis hederifolia A. Gray.  Ivy-Leaved Groung Cherry.
Mesquite Mountains, On the limestone outcrop, east side of mountains, north side of road. Tom Schweich 4/20/2004 . . CalPhotos

Undet.

Undet. .  Unknown.
Mesquite Mountains, Tom Schweich 339. 4/20/2004 ( Alameda ) . Winters Pass, Tom Schweich 384. 4/22/2004 ( Alameda ) . . CalPhotos

Viscaceae

Phoradendron californicum Nutt.  Desert Mistletoe.
Mesquite Mountains, Growing on Acacia greggii A. Gray. On cherry stem road west from Kingston Road, 1.3 m (2.1 km) north of Winters Pass, 71 km southeast of Las Vegas, Nevada. Tom Schweich 381. 4/22/2004 ( UC(TAS) ) . . CalPhotos

Zygophyllaceae

Larrea tridentata (DC) Cov.  Creosote Bush.
Mesquite Mountains, In Creosote Bush scrub, just west of the Winters Pass Hills, on Kingston Road, climbing to Winters Pass in the Mesquite Mountains. Tom Schweich 334. 4/20/2004 ( Alameda UC(TAS) ) . . CalPhotos

Agavaceae

Yucca brevifolia Engelm.  Joshua Tree.
Mesquite Mountains, Tom Schweich 4/22/2004 . . CalPhotos

Yucca schidigera K. E. Ortgies.  Mohave Yucca.
Mesquite Mountains, Tom Schweich 4/22/2004 . . CalPhotos

Poaceae (Gramineae)

Pleuraphis .  Galleta Grass.
Mesquite Mountains, In Creosote Bush scrub, just west of the Winters Pass Hills, on Kingston Road, climbing to Winters Pass in the Mesquite Mountains. Tom Schweich 337. 4/20/2004 ( Alameda ) . . CalPhotos  

Locations Included in This Area