| Taxon | Collector | Location | Type Status | Barcode | |
|---|---|---|---|---|---|
| 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 petersii (Nyl.) Burnham | D. M. Ladd 15262 19 Aug 1991 | United States of America. Missouri. Saint Louis Co. Greensfelder county Park, ca. 2 miles north of Allenton. | |||
| 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 stenophyllum (Tuck.) Fink | R. C. Harris 27998 13 Sep 1992 | United States of America. New Jersey. Warren Co. Johnsonburg. Presbyterian Camp. | 1069727 | ||
| 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 petersii (Nyl.) Burnham | J. C. Lendemer 23598 with W.R. Buck, R.C. Harris, and E. Tripp, 30 Jun 2010 | United States of America. Tennessee. Blount Co. Great Smoky Mountains National Park, Rich Mountain Gap at Ace Gap Trail, 0-0.25 mi W of Old Cades Cove Road at National Park boundary. | 1196427 | ||
| 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 | ||
| Placynthium flabellosum (Tuck.) Zahlbr. | J. C. Lendemer 25936 with D. Ladd & C. Morse, 05 Oct 2010 | United States of America. Arkansas. Madison Co. Sweden Creek Falls Natural Area, W of CR 9, 3.0 mi S of jct w/ AR 21, ~3.2 air mi W of Boxley. | 1199267 | ||
| Placynthium petersii (Nyl.) Burnham | J. C. Lendemer 27417 with M. Sundue, 20 Oct 2010 | United States of America. Vermont. Addison Co. Town of Ferrisburgh, Kingsland Bay State Park, E shore of Lake Champlain. | 1218692 | ||
| Placynthium nigrum (Huds.) Gray | J. C. Lendemer 27409 with M. Sundue, 20 Oct 2010 | United States of America. Vermont. Addison Co. Town of Ferrisburgh, Kingsland Bay State Park, E shore of Lake Champlain. | 1218700 | ||
| Placynthium petersii (Nyl.) Burnham | J. P. Dey 17422 Jun 1988 | United States of America. Tennessee. Wilson Co. Cedars of Lebanon State Park, off U.S. Hwy 231, south of Bairds Mills, Limestone Sink Trail area. | 1227334 | ||
| Placynthium petersii (Nyl.) Burnham | J. P. Dey 17424 Jun 1988 | United States of America. Tennessee. Wilson Co. Cedars of Lebanon State Park, off U.S. Hwy 231, south of Bairds Mills, Limestone Sink Trail area. | 1227335 | ||
| Placynthium flabellosum (Tuck.) Zahlbr. | S. Q. Beeching 3156 27 May 2007 | United States of America. Alabama. DeKalb Co. Little River Canyon, Eberhart Point. | 1490201 |  | |
| Placynthium nigrum (Huds.) Gray | W. W. Calkins 245 | United States of America. Tennessee. Hamilton Co. Lookout Mtn. | 1490241 |  | |
| Placynthium nigrum (Huds.) Gray | W. W. Calkins 25 | United States of America. Tennessee. Hamilton Co. Lookout Mtn. | 1490242 |  | |
| Placynthium petersii (Nyl.) Burnham | J. P. Dey 17431 Jun 1988 | United States of America. Tennessee. Wilson Co. Cedars of Lebanon State Park, south of Bairds Mills off U.S. Hwy 231, Cedar Forest Trail area opposite the park office. | 1490274 |  | |
| Placynthium petersii (Nyl.) Burnham | W. W. Calkins 259 | United States of America. Tennessee. [No specific locality information included with specimen.]. | 1490275 |  | |
| Placynthium petersii (Nyl.) Burnham | W. W. Calkins 186 | United States of America. Tennessee. Hamilton Co. Lookout Mtn. | 1490276 |  | |
| Placynthium nigrum (Huds.) Gray | R. C. Harris 56851 23 Sep 2011 | United States of America. New York. Jefferson Co. Town of Lyme, Three Mile Creek Road Barrens Preserve, NW of Co. Rd. 5. | 1222992 | ||
| Placynthium nigrum (Huds.) Gray | J. P. Dey 20066A Jul 1989 | United States of America. Kentucky. Carter Co. Carter Caves State Park, off of KY Hwy 182 at Tygart's Creek approx. 5-6 mi N of Interstate Hwy I-64, in valley from park entrance to Trading Post. | 1237391 | ||
| Placynthium stenophyllum var. isidiatum Henssen | J. C. Lendemer 28712 04 Jun 2011 | Canada. Yukon. bluffs above SW end of Emerald Lake, W of Klondike Hwy. (Yukon 2), ~10 km N of Carcross (jct. of Yukon 2 and Yukon 8). | 1237887 | ||
| Placynthium asperellum (Ach.) Trevis. | J. C. Lendemer 32527 02 Jul 2012 | Canada. Quebec. M.R.C. de la Haute-Gaspésie. Parc national de la Gaspésie, trail to La Serpentine 0-2.5 km N of jct w/ Sentier du Mont-Olivine. | 2100870 | ||
| Placynthium nigrum (Huds.) Gray | B. P. Streets 4947 24 Jul 2013 | United States of America. West Virginia. Pendleton Co. North Fork South Branch Potomac River, north of Seneca Rocks, Vegetation plot PEND.88. | 2205677 | ||
| Placynthium nigrum (Huds.) Gray | B. P. Streets 5226 02 Jul 2014 | United States of America. West Virginia. Randolph Co. Monongahela National Forest, Windy Run, Vegetation plot MONF.589. | 2357261 | ||
| Placynthium nigrum (Huds.) Gray | J. C. Lendemer 44560 with E. Tripp, 27 Apr 2015 | United States of America. Tennessee. Blount Co. Great Smoky Mountains National Park, Rich Mountain Trail, 0.5 mi SE of jct w/ Old Cades Cove Rd. | 2438306 |  | |
| Placynthium petersii (Nyl.) Burnham | J. C. Lendemer 44554A with E. Tripp, 27 Apr 2015 | United States of America. Tennessee. Blount Co. Great Smoky Mountains National Park, Rich Mountain Gap at Ace Gap Trail, 0-0.25 mi W of Old Cades Cove Road at National Park boundary. | 2438312 |  | |
| Placynthium petersii (Nyl.) Burnham | J. C. Lendemer 44541 with E. Tripp, 27 Apr 2015 | United States of America. Tennessee. Blount Co. Great Smoky Mountains National Park, Rich Mountain Gap at Ace Gap Trail, 0-0.25 mi W of Old Cades Cove Road at National Park boundary. | 2438324 |  | |
| Placynthium nigrum (Huds.) Gray | J. C. Lendemer 45174 21 May 2015 | United States of America. Michigan. Mackinac Co. Hiawatha National Forest, N of Forest Service Road 3122/Kenneth Rd., 1 mi W of jct with East Lake Rd./Forest Service Road 3119. | 2439260 | ||
| Placynthium nigrum (Huds.) Gray | J. K. England 4653 with J. England, 09 Nov 2013 | United States of America. Alabama. Lawrence Co. 4.16 air mi SW of Speake, Bankhead National Forest (Indian Tomb Hollow), along W side of Co. Rd. 86 approx. 0.76 mi S of jct with Co. Rd. 186. | 2441284 | ||
| Placynthium flabellosum (Tuck.) Zahlbr. | J. C. Lendemer 47348A 01 Jul 2016 | United States of America. North Carolina. Macon Co. Nantahala National Forest, E side of Chattooga River 0.25-0.75 mi N of FSR1178/Bull Pen Rd. | 2795554 | ||
| Placynthium nigrum (Huds.) Gray | J. C. Lendemer 50357 with T. Curtis & R. Showman, 23 Mar 2017 | United States of America. Ohio. Meigs Co. Shade River State Forest, S of CR265/Number 9 Rd., 1.3 mi NE of jct w/ CR46/Success Rd. | 03032655 | ||
| Placynthium petersii (Nyl.) Burnham | J. C. Lendemer 49561 with E.A. Tripp, 21 Dec 2016 | United States of America. Alabama. Jackson Co. Russell Cave National Monument, Nature Trail 0.1 mi SW of visitor center. | 03033958 |  | |
| Placynthium petersii (Nyl.) Burnham | J. C. Lendemer 49816 with E.A. Tripp, 24 Dec 2016 | United States of America. Alabama. Jackson Co. James D. Martin-Skyline Wildlife Management Area, slopes above E shore of Hurricane Creek, along Walls of Jericho Trail 0.5 mi W of AL79, W of Jericho. | 03034071 |
