SALICACEAE (Willow family)

Populus alba L. white poplar [US; California; Modoc County; T42N, R10E, S30; 41 deg. 26.698'N, 120 deg. 52.069'W; 4,300 feet][north side of Highway #299, on the east side of Canby; September 9, 2004; Collected & identified by Chuck Walker; #CA131]

Populus balsamifera L. ssp. trichocarpa (Torr. & Gray ex Hook.) Brayshaw black cottonwood [US; California; Modoc County; T40N, R9E, S35; 41 deg. 16.049'N, 120 deg. 53.661'W; 4,400 feet][along the east side of Highway #299, near Rush Creek; September 9, 2004; Collected & identified by Chuck Walker; #CA132]

Populus deltoides Bartr. ex Marsh. ssp. deltoides eastern cottonwood [US; Louisiana; Calcasieu Parish; Lake Charles; T10S, R8W, S19; 15 feet][northeast corner of Lake St.-McNeese St. intersection; September 13, 1993; Collected & identified by Chuck Walker; #LA08]

Populus deltoides Bartr. ex Marsh. ssp. deltoides eastern cottonwood [US; Louisiana; St Bernard Parish; Caernarvon; T14S, R13E, S15?; 29 deg. 51.723'N, 89 deg. 54.017'W; 5 feet][along paved road, St Bernard State Park; November 23, 2007; Collected & identified by Chuck Walker; #LA281]

Populus deltoides Bartr. ex Marsh. ssp. monilifera (Ait.) Eckenwalder plains cottonwood [US; Iowa; Fremont County; T68N, R42W, S32; 1,200 feet][along loop at end of road leading to the upper picnic grounds, Waubonsie State Park; June 18, 1999; Collected & identified by Chuck Walker; #IA22]

Populus fremontii S.Wat. Fremont cottonwood [US; Arizona; Greenlee County; T2S, R30E, S18; 4,080 feet][along Blue River at end of Road #475 (Juan Miller Campgrounds Road), seventeen miles from Highway #191; May 22, 1996; Collected & identified by Chuck Walker; #AZ298]

Populus fremontii S. Wat. ssp. fremontii Fremont cottonwood [US; California; Modoc County; T42N, R12E, S13; 41 deg. 28.908'N, 120 deg. 32.504'W; 4,360 feet][on the south side of E. Modoc St., twenty yards east of Main St., Alturas; September 19, 2004; Collected & identified by Chuck Walker; #CA135]

Populus heterophylla L. swamp cottonwood [US; Illinois; Massac County; Mermet; T14S, R3E, S26; 37 deg. 16.127'N, 88 deg. 50.860'W; 340 feet][bottomland woods on the east side of road, on the east side of Mermet Lake, Mermet Lake Conservation Area; July 29, 2002; Collected & identified by Chuck Walker & Nate Small; #IL410]

Populus nigra L. Lombardy poplar [US; California; Modoc County; T42N, R12E, S8; 41 deg. 29.756'N, 120 deg. 36.541'W; 4,350 feet][on the south side of Highway #299, near turnoff to Devil's Garden Conservation Camp/Big Sage Reservoir); September 9, 2004; Collected & identified by Chuck Walker; #CA133]

Populus tremuloides Michx. quaking aspen [US; Arizona; Yavapai County; Walker; T12.5N, R2W, S36; 6,800 feet][Hassayampa Lake; June 17, 1993; Collected & identified by Chuck Walker; #AZ119]

Salix � sepulcralis Simonkai [alba � ? pendulina weeping willow [US; Arizona; Yavapai County; Prescott; T13N, R2W, S4; 5,360 feet][east side of parking lot, northeast corner of S. Cortez St.-E. Carleton St. intersection; March 27, 1999; Collected & identified by Chuck Walker; #AZ507]

Salix exigua Nutt. narrowleaf willow [US; Arizona; Yavapai County; Black Canyon City; T8N, R2E, S3; 1,974 feet][along Aqua Fria River near the Community First National Bank; February 21, 1999; Collected & identified by Chuck Walker; #AZ499]

Salix humilis Marsh. prairie willow [US; Iowa; Fremont County; Riverton; T68N, R41W, S18; 930 feet][along dike road, 5 m north of J46, east of #313, Riverton Wildlife Management Area; August 6, 1999; Collected & identified by Chuck Walker; #IA92]

Salix humilis Marsh. var. tristis (Ait.) Griggs prairie willow [US; Illinois; Lake County; Braeside; T43N, R12E, S36; 680 feet][high on north embankment leading to waterway that passes under County Line Rd.; May 29, 2004; Collected by Chuck Walker; Identified by Ann Claerbout & Chuck Walker; #IL655]

Salix interior Rowlee sandbar willow [US; Illinois; Jackson County; Grand Tower; T10S, R4W, S24; 37 deg. 38.149'N, 89 deg. 30.572'W; 360 feet][along old road along Mississippi River, Grand Tower Campground and Picnic Area (Devil's Backbone Park), south of Picnic Area; June 24, 2002; Collected by Chuck Walker; Identified by Dr. Mark A. Basinger & Chuck Walker; #IL335]

Salix interior Rowlee sandbar willow [US; Mississippi; Washington County; Stoneville; T19N, R7W, S35; 33 deg. 26.970'N, 90 deg. 53.525'W; 115 feet] [in ditch along the west side of dirt road that separates the Delta Experimental Forest and the northernmost catfish ponds, close to an aquatic/wet area, two miles north of Stoneville; August 5, 2008; Collected by Chuck Walker; Identified by Dr. Emile Gardiner; #MS149]

Salix laevigata Bebb red willow [US; Arizona; Yavapai County; Prescott; T13N, R2W, S9; 5,550 feet][along Granite Creek along Highway 89 by Haisley Homestead entrance; May 15, 1993; Collected & identified by Chuck Walker; #AZ84]

Salix lasiolepis Benth. arroyo willow [US; Arizona; Yavapai County; T16N, R6W, S22; 5,320 feet][Cottonwood Canyon off Camp Wood Rd., six miles from Williamson Valley Rd., 22 miles from Prescott; October 17, 1995; Collected & identified by Chuck Walker; #AZ239]

Salix lasiolepis Benth. arroyo willow [US; Arizona; Yavapai County; Prescott; T13N, R2W, S4; 5,330 feet][along Granite Creek, on grounds of Prescott Mile High Middle School; March 7, 1999; Collected & identified by Chuck Walker; #AZ502]

Salix lemmonii Bebb (male specimen) Lemmon's willow [US; California; Modoc County; T40N, R15E, S5; 41 deg. 20.173'N, 120 deg. 17.448'W; 6,540 feet][along east side of road on bank leading down to the South Fork Fitzhugh Creek, Modoc National Forest; July 2, 2005; Collected & identified by Chuck Walker; #CA271]

Salix lemmonii Bebb (female specimen) Lemmon's willow [US; California; Modoc County; T42N, R15E, S28; 41 deg. 27.07'N, 120 deg. 14.53'W; 6,840 feet][open area north of Pepperdine Camp, Modoc National Forest; July 3, 2005; Collected & identified by Chuck Walker; #CA276]

Salix lucida Muhl. ssp. lasiandra (Benth.) E. Murr. Pacific willow [US; California; Lassen County; T37N, R12E, S12; 41 deg. 3.010'N, 120 deg. 32.675'W; 5,400 feet][wetland area, 0.4 miles northwest of Williams Ranch; June 23, 2005; Collected & identified by Chuck Walker; #CA260]

Salix matsudana Koidzumi corkscrew willow [US; Illinois; Jackson County; Carbondale; T9S, R1W, S28; 37 deg. 42.881'N, 89 deg. 13.332'W; 450 feet][northwest corner of Plant Biology Greenhouse, Southern Illinois University; August 5, 2003; Collected by Chuck Walker; Identified by Richard Cole & Chuck Walker; #IL523]

Salix nigra Marsh black willow [US; Iowa; Fremont County; Riverton; T68N, R41W, S18; 920 feet][along edge of parking lot at the boat launch, Riverton Wildlife Management Area; June 19, 1999; Collected & identified by Chuck Walker; #IA25]

Salix nigra Marsh black willow [US; Mississippi; Washington County; Greenville; T18N, R8W, S34; 33 deg. 21.992'N, 91 deg. 2.544'W; 120 feet][along ditch, south side of parking lot at Wal-Mart; April 2, 2006; Collected & identified by Chuck Walker; #MS41]

Salix scouleriana Barratt ex Hook. Scouler's willow [US; California; Modoc County; T43N, R13E, S33; 41 deg. 31.052'N, 120 deg. 28.844'W; 4,440 feet)][top of bank along Parker Creek; April 29, 2005; Collected & identified by Chuck Walker; #CA186]

Salix sericea Marsh. silky willow [US; Illinois; Jackson County; T9S, R1W, S35; 37 deg. 37.655'N, 89 deg. 9.971'W; 400 feet] [in small streambed, west side of Giant City Road, northwest of Indian Creek (Creek passes under road); June 17, 2002; Collected by Chuck Walker; Identified by Dr. Mark A. Basinger & Chuck Walker; #IL321]

not in collection Salix spp. [US; Illinois; Cook County; Glencoe; T42N, R12E, S1; 670 feet][south side of County Line Rd., Marquette Rd.-County Line Rd. intersection; May 29, 2004; Collected & identified by Chuck Walker; #IL656]