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CHSC113101 Lowell Ahart 19277 2013-11-18
United States, California, Butte, Below the high water line of Lake Oroville, about 200 yards northeast of the boat ramp at the end of Stringtown Road, on the north side of the road, about 2 1/2 miles (air) northeast of Hurleton. T39N R05E S01 SW1/4, 39.534167 -121.364722, 261m
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CHSC114308 M Beyers 848 2010-10-09
United States, California, Sacramento, .5 miles east of Courtland along Wilson Road., 38.328056 -121.563611, 1m
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CHSC113945 Lowell Ahart 19698 2014-08-13
United States, California, Butte, About 10 yards east of the Skyway, about one-mile north of Stirling City. T24N R04E S21 near center, 39.924444 -121.5325, 1142m
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CHSC114468 R. F. Thorne 41872 1970-10-15
United States, California, Los Angeles, Rancho Santa AnaBotanic Garden, 366m
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CHSC115522 Lowell Ahart; John Dittes 20360 2015-07-16
United States, California, Modoc, North edge of Ash Creek (destroyed), southeast of the gravel pit (destroyed), about 1/8 mile east of parking are on east side of Elkins Lane, Ash Creek State Wildlife Area, about 4 miles (air) west of Adin, about 8 miles (air) northeast of Bieber, Big Valley. T39N R08E S26 NW1/4, 41.198333 -121.016944, 1268m
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CHSC117147 Lowell Ahart; John Dittes 21168 2016-07-14
United States, California, Modoc, West side of new pond, south of Ash Creek Canal (now filled in), south of Ash Creek, Ash Creek State Wildlife Area, 0.79 mile (air) south of Cdounty Road 87, 1/73 miles (air) west of Adin, Big Valley. T39N R09E S30 NE1/4, 41.191389 -120.975833, 1274m
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CHSC099965 Lowell Ahart; John Dittes 15321 2008-08-25
United States, California, Modoc, On the east bank (flood plane) of the Pit River, about 1/8 mile east of County Road 91, about 3.8 miles (air) north-northeast of Lookout. T40N R07E S35 NE1/4 USGS Quadrangle: Donica Mtn 1:24,000, 41.265278 -121.137222, 1273m
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CHSC099959 Lowell Ahart; John Dittes 15276 2008-08-25
United States, California, Modoc, On the west bank (flood plane) of the Pit River, about 1/8 mile east of County Road 91, about 3.8 miles (air) north-northeast of Lookout. T40N R07E S35 NE1/4 USGS Quadrangle: Donica Mtn 1:24,000, 41.265278 -121.137222, 1273m
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CHSC096175 R. Fischer 895 2006-07-21
United States, California, Shasta, Ahjumawi Lava Springs State Park, 3 miles N. of McArthur, on the western edge of the Modoc Plateau. Plants collected from grassy meadow, near water's edge, at Crystal Springs. USGS Quadrangle: Fall River Mills 1:24,000, 41.112222 -121.448333, 1009m
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CHSC122469 Lowell Ahart 22044 2019-07-10
United States, California, Butte, Wood yard, on the west side of East Street, in Honcut., 39.328194 -121.53475, 32m
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CHSC122624 L. P. Janeway 13161 2019-08-28
United States, California, Butte, Plumas National Forest; north end of Rocky Ridge, about 300 m southwest of the junction of Concow Road and Rim Road (Ponderosa Way). TRS: T23N, R4E. NW1/4 of sec. 36. Pulga 7.5' quad., 39.807778 -121.481667, 997m
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CHSC125083 Josephine Guardino; John Dittes 391 1993-07-16
United States, California, Modoc, Modoc Plateau; Big Valley, Ash Creek State Wildlife Area; 8.1 air-miles northeast of Bieber, 4.0 air-mile west of Adin northern edge of Ash Creek floodplain; 0.38 mile east of Elkins Lane. Vicinity of borrow pits. T39N, R8E, se 1/4 of sw 1/4 Sec. 23. Big Swamp 7.5' quad., 41.198389 -121.021269, 1269m
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CHSC026993 James Henrickson 12582 1973-08-29
United States, California, San Bernardino, Ca 42 (air) miles ENE of Baker, 3.9 miles E of Hwy 15 on Nipton Road towards Nipton, in low clay area along Willow Creek., 35.458056 -115.38, 792m
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CHSC066862 Vernon H. Oswald; Lowell Ahart 8279 1996-09-10
United States, California, Lassen, Mountain Meadows Reservoir SW of Westwood. On the embankment of the railroad at the northwest edge of the reservoir. T28N R08E S13 SE1/4 of NE1/4, 40.288333 -121.025278, 1539m
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CHSC076095 Lowell Ahart; Vernon H. Oswald 8215 1999-09-13
United States, California, Lassen, In a dry field, about 150 yards southwest of the parking area, about 1 mile south of the sign in station, Honey Lake Wildlife Area, 5 1/2 miles (air) southeast of Standish. T28N R14E S10 near the center, 40.300556 -120.388611, 1207m
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CHSC080368 Richard R. Halse 5514 1998-10-01
United States, Washington, Klickitat, Along the Dallesport Road .2 miles W of its junction with U. S. Hwy. 197 near the N end of The Dalles Bridge over the Columbia River. T02N R13E S35, 60m
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CHSC106333 Lowell Ahart; John Dittes 17049 2010-08-30
United States, California, Modoc, About 10 yards west of fence, south edge of the meadow, Ash Creek State Wildlife Area, 2300 feet north of Lassen County line, 3.6 miles (air) west of Adin, about 8.0 miles (air) northeast of Bieber, Big Valley. T39N R08E S26 NW1/4, 41.190833 -121.014444, 1268m
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CHSC112721 Lowell Ahart 19212 2013-10-26
United States, California, Butte, On the south side of Philbrook Creek, below the high water line (strand) of Philbrook Reservoir. T25N R05E S16 W1/2, 40.025278 -121.460556, 1682m
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CHSC069501 Vernon Oswald; Lowell Ahart 8846 1997-09-04
United States, California, Humboldt, North Coast Region, Coastal Strand. Big Lagoon County Park at the southwest edge of Big Lagoon. T09N R01W S13, 41.163611 -124.130833, 3m
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CHSC072396 Vernon H. Oswald 9670 1998-10-19
United States, California, Solano, Grizzly Island Wildlife Area, Grizzly Island Rd. paralleling Grizzly Slough ca. 3 mi west of the end of the county road on Montezuma Slough., 38.110556 -121.936389
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CHSC076026 Vernon H. Oswald 9834 1999-08-19
United States, California, Humboldt, Coastal Strand. Clam Beach County Park on Hwy. 101 between Arcata and Trinidad. T07N R01E S18, 40.995833 -124.115, 6m
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CHSC080185 Richard R. Halse 5500 1998-09-03
United States, Washington, Klickitat, Along the Dalleport Road .2 miles W of its junction with U. S. Hwy 197 near the N end of the bridge over the Columbia River. T02N R13E S35, 60m
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CHSC117071 Peter F. Zika 26829 2014-08-27
United States, Washington, Grant, Near N shore of Potholes Reservoir., 47.66 -119.411111, 315m
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CHSC021246 M. S. Taylor 772 1975-06-21
United States, California, Butte, At end of Citrus Ave, in a field, between 11th and 12th Aves, Chico, 39.748056 -121.8575
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CHSC034775 L. Ahart 3230 1981-11-06
United States, California, Butte, Ca. 1/8 mi e of Gridley Bridge across the Feather River, ca. 2 mi w of Hwy 70, ca. 4 mi e of Gridley., 39.366111 -121.642222, 35m
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CHSC061974 Vernon H. Oswald 5955 1993-10-19
United States, California, Butte, N side of West East Ave, Chico, between Cussick and Alamo avenues. T22N R01E S, 39.7525 -121.875833, 52m
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CHSC066560 Vernon H. Oswald; Lowell Ahart 7975 1996-07-08
United States, California, Tehama, Cascade Range Foothills. Hog Lake Plateau. BLM parcel along Hwy. 36 NE of Red Bluff. Common in disturbed soil at the former site of corral along Hwy. 36 near the NE side of Hog Lake. T28N R02W S17 NE1/4 of NW1/4, 40.286111 -122.116389, 268m
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CHSC069681 Vernon Oswald 3171 1987-07-30
United States, California, Butte, Ranch Arroyo Chico. On the edge of the Sacramento River just upstream from the washout (Chico Landing site). T22N R01W S, 39.715833 -121.946944, 37m
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CHSC078510 Lowell Ahart 8673 2000-08-29
United States, California, Sutter, On the north side of Pass Road, near the base of South Butte, Sutter Buttes, about 4 1/2 miles northwest of Sutter. T16N R01E S35 SE1/4, 39.188611 -121.820556, 110m
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CHSC094657 Lowell Ahart 13368 2006-09-28
United States, California, Butte, On the east side of the North Fork of the Feather River, on the west side of Highway 70, about 50 yards southwest of the Shady Rest Area south of the Arch Rock Tunnel. T23N R05E S14 SW1/4, 39.8475 -121.394722, 445m
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CHSC099490 Lowell Ahart 15147 2008-07-23
United States, California, Butte, North edge of the South Fork of the Feather River, about 10 yards east of where Sucker Creek enters the South Fork of the Feather River, below the high water line of Lake Oroville, about 1/4 mile west of the Ponderosa Dam. T20N R06E S33 NW1/4, 39.550278 -121.310833, 258m
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CHSC100499 Lowell Ahart; John Dittes, Josephine Guardino 15411 2008-11-08
United States, California, Butte, On the north side of the gravel road, about 50 yards east of Cedar Grove Parking Area in Lower Bidwell Park, Chico. T22N R01E S24 SE1/4, 39.745556 -121.808889, 67m
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CHSC100478 Lowell Ahart 15446 2008-11-08
United States, California, Butte, Parking area on the west side of the Midway, west of the intersection of Midway and East Park Avenue, Chico. T22N R01E S36 SE1/4, 39.713889 -121.814444, 61m
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CHSC102985 Lowell Ahart 16281 2009-08-13
United States, California, Butte, At the south end of the cement barrier that controls the waster flow into Mud Creek, the north part of the diversion structure that controls Mud Creek diversion and Lindo Channel, northeast of Hooker Oak, Upper Bidwell Park, Chico. T22N R02E S18 SW1/4, 39.761667 -121.797222, 69m
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CHSC109763 Lowell Ahart 18528 2012-10-28
United States, California, Butte, About 50 yards east of the freeway, northwest of Table 2, Lower Bidwell Park, Chico. T22N R01E S25 NW1/4, 39.738611 -121.820556, 67m
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CHSC110403 Lowell Ahart 18457 2012-09-28
United States, California, Butte, Restoration area, south of Vallombrosa Avenue, north of Sycamore Pool in Big Chico Creek, Lower Bidwell Park, Chico. T22N R01E S26 NE1/4, 39.736111 -121.830556, 62m
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CHSC110401 Lowell Ahart 18475 2012-09-28
United States, California, Butte, On the east side of the parth, north of Big Chico Creek, on the west side of the Freeway, Lower Bidwell Park, Chico. T22N R01E S25 NE1/4, 39.738889 -121.821944, 62m
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CHSC117751 Lowell Ahart 21373 2016-10-25
United States, California, Butte, Around buildings, Peter Ahart Ranch, about 1 1/2 miles north and 1 mile east of Honcut, about 12 miles south of Oroville. T17N R04E S04 SE1/4, 39.351667 -121.520833, 30m
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CHSC095427 LeRoy Gross 455 2001-11-10
United States, California, Los Angeles, Los Angeles Basin region: Verdugo Mountains, north side. Off the 210 freeway east bound La Tuna Canyon Road exit opposite this exit is a road that starts out paved. (Hostetter Mountainway) follow this road that parallels the freeway east till a dirt road forks off on the right (southeast). Along paved road and in cracks of asphalt, just east of intersection with La Tuna Canyon Road. T02N R14W S30 USGS Quadrangle: Burbank, 34.233611 -118.279167, 457m