RUBIACEAE (Madder family)

Cephalanthus occidentalis L. common buttonbush [US; Louisiana; Calcasieu Parish; Moss Bluff; T8S, R8W, S34; 25 feet] [across the street from 705 White Rd.; September 20, 1993; Collected & identified by Chuck Walker; #LA11]

Cephalanthus occidentalis L. common buttonbush [US; Mississippi; Sharkey County; T13N, R5W, S20; 32 deg. 57.92'N, 90 deg. 43.58'W; 95 feet] [along south side of Theobald Rd., one mile east of Widow Bayou, June 26,2006; Collected & identified by Chuck Walker; #MS113]

Diodia teres Walt. var. teres poorjoe [US; Louisiana; Calcasieu Parish; Lake Charles; T10S, R8W, S19; 15 feet] [along curb on east side of Ernest St., 20 m south of Ernest St.-Claude St. intersection; July 30, 1994; Collected & identified by Chuck Walker; #LA139]

Diodia virginiana L. Virginia buttonweed [US; Louisiana; Calcasieu Parish; Lake Charles; T10S, R8W, S19; 15 feet] [vacant lot north of 4212 Ryan St.; May 27, 1994; Collected & identified by Chuck Walker; #LA87]

Galium aparine L. stickywilly [US; Arizona; Yavapai County; Prescott; T14N, R2W, S26; 5,220 feet] [along former Atchison, Topeka & Santa Fe railroad tracks, behind Watson Lake; May 1, 1993; Collected & identified by Chuck Walker; #AZ63]

Galium aparine L. stickywilly [US; Louisiana; Calcasieu Parish; Lake Charles; T10S, R8W, S19; 15 feet] [near south side of footbridge over Contraband Bayou, McNeese State University; February 16, 1994; Collected & identified by Chuck Walker; #LA44]

Galium circaezans Michx. licorice bedstraw [US; Iowa; Fremont County; T68N, R42W, S3; 1,190 feet] [along Sunset Ridge Interpretive Trail, 200 m from Park Ranger's Office, Waubonsie State Park; June 11, 1999; Collected & identified by Chuck Walker; #IA17]

Galium concinnum Torr. & Gray shining bedstraw [US; Iowa; Fremont County; T68N, R42W, S29; 1,210 feet] [near beginning of trail, south of the first curve leading down to the lower picnic grounds, Waubonsie State Park; July 23, 1999; Collected & identified by Chuck Walker; #IA73]

Galium microphyllum Gray bracted bedstraw [US; Arizona; Pinal County; T1N, R10E, S5; 2,520 feet] [growing along creek from Charlebois Spring, Superstition Wilderness Area; February 23, 1996; Collected & identified by Chuck Walker; #AZ242]

Galium obtusum Bigelow bluntleaf bedstraw [US; Illinois; Jackson County; Carbondale; T9S, R1W, S28; 420 feet] [growing in water along the west side of Evergreen Dr., southwest of turn-off to Sport Club Fields, Southern Illinois University; July 6, 2001; Collected & identified by Chuck Walker; #IL195]

Galium pilosum Ait. hairy bedstraw [US; Illinois; Johnson County; T11S, R4E, S36; 580 feet] [in shade of forest, Fink Sandstone Glade, about two miles north-north-east of Trigg Lookout; June 18, 2001; Collected & identified by Chuck Walker; #IL171]

Galium tinctorium L. stiff marsh bedstraw [US; Wisconsin; Ashland County; T45N, R2W, S1; 1,160 feet] [gravel pit area above Catalino's Bog, on the east side of Tuler Forks and Highway 169, six miles north-north-west of Tyler Forks; September 8, 2001; Collected & identified by Chuck Walker; #WI24]

Galium tinctorium L. stiff marsh bedstraw [US; Mississippi; Sharkey County; T13N, R5W, S20; 32 deg. 57.849'N, 90 deg. 43.850'W; 100 feet] [Flooding Research Facility, six miles east-south-east of Anguilla, April 8, 2006; Collected & identified by Chuck Walker; #MS51]

Galium trifidum L. ssp. subbiflorum (Wieg.) Piper threepetal bedstraw [US; Arizona; Yavapai County; Prescott; T13N, R2W, S24; 6,650 feet] [along Watershed Trail #299, 1.5 miles from Spruce Mt. Rd., 1.5 miles from Senator Hwy; June 24, 1995; Collected & identified by Chuck Walker; #AZ178]

Galium triflorum Michx. fragrant bedstraw [US; Illinois; Jackson County; T10S, R2W, S] [along trail at Cedar Lake; September 10, 2001; Collected by Heidi Hartman; Identified by Chuck Walker; #IL254]

Galium wrightii Gray Wright's bedstraw [US; Arizona; Yavapai County; Prescott; T13N, R3W, S23; 6,880 feet] [along dirt road, 120 m west of Mount Francis; July 15, 1995; Collected & identified by Chuck Walker; #AZ199]

Houstonia purpurea L. Venus' pride [US; Illinois; Jackson County; T9S, R1W, S35; 37 deg. 37.656'N, 89 deg. 9.94'W; 400 feet] [in woods on the west side of the Giant City Road, northwest of Indian Creek (Creek passes under road); June 17, 2002; Collected by Chuck Walker; Identified by Dr. Mark A. Basinger; #IL314]

Houstonia pusilla Schoepf tiny bluet [US; Louisiana; Calcasieu Parish; Lake Charles; T10S, R8W, S19; 15 feet] [vacant lot north of Dolby St.-E.Parkway-Gulf Highway intersection; March 15, 1994; Collected & identified by Chuck Walker; #LA50]

Houstonia wrightii Gray pygmy bluet [US; Arizona; Yavapai County; Walker; T12.5, R2W, S36; 6,740 feet] [just southeast of Hassayampa Lake; June 17, 1993; Collected & identified by Chuck Walker; #AZ117]

Kelloggia galioides Torr. milk kelloggia [US; California; Lassen County; T36N, R11E, S9; 40 deg. 58.622'N, 120 deg. 43.211'W; 6,440 feet] [under trees, South Knob allotment; July 14, 2004; Collected by Matt Minarchek & Chuck Walker; Identified by Chuck Walker; #CA53]

Mitchella repens L. partridgeberry [US; Wisconsin; Ashland County; T45N, R2W, S15; 1,180 feet] [Glen Colver farm, east side of Highway 169, one mile north of Becker Road, 4.5 miles northeast of Mellen; September 8, 2001; Collected & identified by Chuck Walker; #WI29]

Mitchella repens L. partridgeberry [US; Louisiana; Morehouse Parish; T22N, R6E, S10; 110 feet] [growing on ground by campsite marque (#17), Chemin-A-Haut State Park; April 25, 2009; Collected & identified by Chuck Walker; #LA287]

Pentas lanceolata (Forssk.) Deflers Egyptian starcluster [Origin: eastern tropical Africa to southern Arabia] [US; Illinois; Jackson County; Carbondale; T9S, R1W, S28; 37 deg. 42.883'N, 89 deg. 13.328'W; 450 feet][Main House, Plant Biology Greenhouse, Southern Illinois University; April 4, 2004; Collected by Chuck Walker; Identified by Richard Cole; #IL625]

Richardia scabra L. rough Mexican clover [US; Florida; Broward County; Fort Lauderdale; T50S, R42E, S10; 5 feet] [in lawn at W. Broward Ave.-Nugent Ave. intersection; December 27, 1997; Collected & identified by Chuck Walker; #FL15]

Serissa foetida (L. f.) Lam. snowrose [Origin: India, and China to Japan] [US; Illinois; Jackson County; Carbondale; T9S, R1W, S28; 37 deg. 42.883'N, 89 deg. 13.328'W; 450 feet] [North House, Plant Biology Greenhouse, Southern Illinois University; December 31, 2003; Collected by Chuck Walker; Identified by Richard Cole; #IL557]

Sherardia arvensis L. blue fieldmadder [US; Arkansas; Polk County; 34 deg. 39.172'N, 94 deg. 16.490'W; 2,349 feet] [along curb/sidewalk at Eagleton Vista, Talimena Scenic Byway/Highway #88; April 16, 2008; Collected & identified by Chuck Walker; #AR78]

Sherardia arvensis L. blue fieldmadder [US; Louisiana; Calcasieu Parish; Lake Charles; T11S, R8W, S5; 15 feet] [near Burton Coliseum, south side of Gauthier Rd., 80 m east of intersection with Gulf Highway (#385); April 23, 1995; Collected & identified by Chuck Walker; #LA181]

Spermacoce floridana Urban Florida false buttonweed [US; Florida; Broward County; Sunrise; T50S, R40E, S4; 5 feet] [north bank of North New River, near entrance to Markham County Park; December 28, 1997; Collected & identified by Chuck Walker; #FL24]

Spermacoce glabra Michx. smooth false buttonweed [US; Illinois; Fremont County; Brussels; T13S, R1W, S16; 430 feet] [along road leading out to dike, due north of Two Rivers National Wildlife Refuge; July 1, 2000; Collected & identified by Chuck Walker; #IL22]

Stenaria nigricans (Lam.) Terrell var. nigricans diamondflowers [US; Iowa; Fremont County; T68N, R42W, S31; 970 feet] [on hillside, 5 m east of the Bluff Rd., 1.4 miles south of Highway 2, Waubonsie State Park; July 4, 1999; Collected & identified by Chuck Walker; #IA43]

Unknown [Origin: ] [US; Illinois; Jackson County; Carbondale; T9S, R1W, S28; 37 deg. 42.883'N, 89 deg. 13.328'W; 450 feet][Main House, Plant Biology Greenhouse, Southern Illinois University; January 8; Collected & identified by Chuck Walker; #IL570]