| Taxon | Collector | Location | Type Status | Barcode | |
|---|---|---|---|---|---|
| Placynthium nigrum (Huds.) Gray | C. F. Austin 452 Apr 1867 | United States of America. New Jersey. Bergen Co. Hackensack. | 506998 | ||
| Placynthium nigrum (Huds.) Gray | C. F. Austin s.n. s.d. | United States of America. New Jersey. | 506999 | ||
| Placynthium nigrum (Huds.) Gray | R. C. Harris 45352 24 Oct 2001 | United States of America. Arkansas. Izard Co. NE corner of Devil's Knob-Devil's Backbone Natural Area, along Co. Rd. 12, 1.2 mi NNW of AR 9. | 669094 | ||
| Placynthium nigrum (Huds.) Gray | R. C. Harris 44366 31 Oct 2000 | United States of America. Kansas. Cherokee Co. N of SE Bagdad Road, 0.2 mi W of Missouri state line, 1.6 mi E of jct with US 166/400. | 669097 | ||
| Placynthium nigrum (Huds.) Gray | C. L. Kramer 416(b) 20 Jul 1950 | United States of America. Kansas. Norton Co. 3 mi E of Norton. | 669098 | ||
| Placynthium nigrum (Huds.) Gray | C. L. Kramer 367[A] 24 Apr 1954 | United States of America. Kansas. Cherokee Co. 4 mi E of Baxter Springs on U.S. Hwy 166. | 669099 | ||
| Placynthium nigrum (Huds.) Gray | O. S. Fearing 484 03 Aug 1950 | United States of America. Kansas. Johnson Co. 2 mi S of Stanley. | 669100 | ||
| Placynthium nigrum (Huds.) Gray | D. M. Ladd 19454 29 Feb 1996 | United States of America. Missouri. Shannon Co. MOFEP site 4, north of Current River and south of Banker Hollow, west of Wolf Pen Hollow. | 761351 | ||
| Placynthium nigrum (Huds.) Gray | D. M. Ladd 19540 11 Mar 1996 | United States of America. Missouri. Carter Co. MOFEP site 8, at south edge of Peck Ranch Conservation Area, ca. 5 miles north of hwy 60, east of Nordic Hollow, west of watershed of Midco Hollow, south of Log Spring Hollow. | 761352 | ||
| Placynthium nigrum (Huds.) Gray | R. C. Harris 45657 26 Oct 2001 | United States of America. Missouri. Saint Louis Co. Rockwoods Reservation, W of MO 109, N of Eureka, along Trail Among the Trees. | 761355 | ||
| Placynthium nigrum (Huds.) Gray | R. C. Harris 40395 15 Apr 1997 | United States of America. Missouri. Jefferson Co. Victoria Glade Preserve, ca. 2 mi SE of Hillsboro on E side of Victoria-Hillsboro Road. | 761357 | ||
| Placynthium nigrum (Huds.) Gray | R. C. Harris 40503 17 Apr 1997 | United States of America. Missouri. Oregon Co. Mark Twain National Forest, Falling Spring, ca. 2.4 mi E of MO 19 on Forest Service Road 3170/3164. | 761358 | ||
| Placynthium nigrum (Huds.) Gray | R. C. Harris 44716 03 Nov 2000 | United States of America. Missouri. Barry Co. Roaring River State Park, Roaring River Hills Wild Area along CR F. | 761360 | ||
| Placynthium nigrum (Huds.) Gray | R. C. Harris 21339 23 Apr 1988 | United States of America. Oklahoma. Cherokee Co. Along Terapin Creek ca. 6 mi N of St. Rd. 82 on St. Rd. 100. | 761362 | ||
| Placynthium nigrum (Huds.) Gray | R. C. Harris 47480 20 May 2003 | United States of America. Missouri. Taney Co. Mark Twain National Forest, 3 mi NNE of US 160 on Cross Timbers Road (Co. Rd. 160/200), along trail to Coy Bald. | 787316 | ||
| Placynthium nigrum (Huds.) Gray | R. C. Harris 47572 20 May 2003 | United States of America. Missouri. Taney Co. Mark Twain National Forest, Hercules Glades Wilderness, 3 mi NNE of US 160 on Cross Timbers Road (Co. Rd. 160/200), along trail to Coy Bald. | 787378 | ||
| Placynthium nigrum (Huds.) Gray | D. M. Ladd 25720 15 Apr 2004 | United States of America. Oklahoma. Muskogee Co. Gruber Wildlife Management Area, along hwy 10 ca. 3.3 miles north of Camp Gruber ORV Area. | |||
| Placynthium nigrum (Huds.) Gray | C. Russell 186 Jun 2000 | United States of America. Missouri. Wayne Co. Mill Spring. | |||
| Placynthium nigrum (Huds.) Gray | D. M. Ladd 5948 28 Jan 1982 | United States of America. Missouri. Laclede Co. Along ridgetop on east side of Spring Valley, southeast of Ushery Campground. | |||
| Placynthium nigrum (Huds.) Gray | D. M. Ladd 7847 with Deborah Ladd, 14 Feb 1983 | United States of America. Missouri. Cedar Co. Stockton State Park, along lakeshore south of highway 215. | |||
| Placynthium nigrum (Huds.) Gray | D. M. Ladd 7993 18 Apr 1983 | United States of America. Missouri. Camden Co. HaHaTonka State Park, in Devil's Kitchen. | |||
| Placynthium nigrum (Huds.) Gray | D. M. Ladd 8041 19 Apr 1983 | United States of America. Missouri. Webster Co. Niangua State Forest, St. Luke tract, below parking area. | |||
| Placynthium nigrum (Huds.) Gray | D. M. Ladd 8136 01 May 1983 | United States of America. Missouri. Montgomery Co. Graham Cave State Park, near cave. | |||
| Placynthium nigrum (Huds.) Gray | D. M. Ladd 8594 with Deborah Ladd, 17 Jul 1983 | United States of America. Missouri. Saint Louis Co. Babler State Park, along Hawthorn Trail. | |||
| Placynthium nigrum (Huds.) Gray | R. C. Harris 54175 21 Apr 2008 | United States of America. Pennsylvania. Huntingdon Co. NW of PA 45, 1 mi SW of village of Franklinville, Franklin Township. | 975271 | ||
| Placynthium nigrum (Huds.) Gray | D. M. Ladd 25995 19 May 2004 | United States of America. Missouri. Douglas Co. Hunter Creek Glade, a steep, southwest-facing dolomite glade/sandstone bluff complex along north side of Hunter Creek, ca. 0.25 mile north of terminus of hwy VV, ca. 6.5 miles east/southeast of Ava. | |||
| Placynthium nigrum (Huds.) Gray | J. C. Lendemer 14120A 19 Sep 2008 | Canada. Ontario. Bruce Co. Bruce Peninsula National Park, Halfway Log Dump on Georgian Bay. | 1050759 | ||
| Placynthium nigrum (Huds.) Gray | J. C. Lendemer 14279A 20 Sep 2008 | Canada. Ontario. Bruce Co. Bruce Peninsula National Park, just SW of parking area for Halfway Log Dump. | 1050865 | ||
| Placynthium nigrum (Huds.) Gray | J. C. Lendemer 14468 21 Sep 2008 | Canada. Ontario. Bruce Co. Bruce Peninsula National Park, Singing Sands, The Dorcas Alvar. | 1049670 | ||
| Placynthium nigrum (Huds.) Gray | D. M. Ladd 18748 23 May 1995 | United States of America. Missouri. Greene Co. Rocky Barrens, MDC tract, an overgrown limestone glade complex west of Little Sac River, ca. 1.2 miles east/northeast of Willard. | |||
| Placynthium nigrum (Huds.) Gray | D. M. Ladd 15878 7 Dec 1991 | United States of America. Missouri. Boone Co. Rock Bridge State Park, south of Columbia, just north of Pierpont, west of hwy 63, along Gans Creek east of hwy 163. | |||
| Placynthium nigrum (Huds.) Gray | D. M. Ladd 15437 28 Aug 1991 | United States of America. Arkansas. Stone Co. Ozark National Forest, Sylamore Ranger District. Along trail between Blanchard Springs and Gunner Pool Recreation Area. | |||
| Placynthium nigrum (Huds.) Gray | D. M. Ladd 14790 02 Feb 1991 | United States of America. Arkansas. Madison Co. Withrow Springs State Park, ca. 2 miles southwest of Forum. Along War Eagle Hiking Trail, bordering north shore of War Eagle Creek. | |||
| Placynthium nigrum (Huds.) Gray | J. C. Lendemer 14764 with K. Knudsen, 05 Oct 2008 | United States of America. California. Riverside Co. Peninsular Range, San Bernardino National Forest, San Jacinto Mountains, middle Rouse Ridge, Blackburn Canyon Quad. | 1068787 | ||
| Placynthium nigrum (Huds.) Gray | D. M. Ladd 17967 31 Mar 1994 | United States of America. Missouri. Phelps Co. Mark Twain National Forest, Roluf Spring woodland restoration area, ca. 4 miles west/southwest of Newburg, west of Forest Service Road 1516. | |||
| Placynthium nigrum (Huds.) Gray | D. M. Ladd 13445 13 Nov 1988 | United States of America. Missouri. Washington Co. Washington State Park, along Thousand Steps Trail, south of Big River on bluff east of Dining Lodge. | |||
| Placynthium nigrum (Huds.) Gray | J. C. Lendemer 17290 with R.C. Harris, 18 May 2009 | United States of America. Pennsylvania. Bradford Co. State Game Lands No. 36, Falls Creek, 1 mi N of confluence with Schrader Creek, ca. 0.75 mi W of Barclay Station on Minerville Rd. | 1105710 | ||
| Placynthium nigrum (Huds.) Gray | J. C. Lendemer 17515 with R.C. Harris, 19 May 2009 | United States of America. Pennsylvania. Carbon Co. Hickory Run State Park, W-facing slopes above E shore of Lehigh River, 3 mi SE of Drifton Junction Station. | 1105905 | ||
| Placynthium nigrum (Huds.) Gray | J. C. Lendemer 22452 04 Jun 2010 | United States of America. Massachusetts. Berkshire Co. Town of Pittsfield, Pittsfield State Forest, E of Lulu Cascade, N of Berry Pond Circuit Road 0.2 mi N of park office. | 1181321 | ||
| Placynthium nigrum (Huds.) Gray | R. C. Harris 56342 30 Jun 2010 | United States of America. Tennessee. Blount Co. Great Smoky Mountains National Park, Rich Mountain Trail near N end of Old Cades Cove Road/Rich Mountain Road just S of park boundary. | 1197012 |
