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Growing near the Brookwood Apartments on Hillview ave. Near the intersection with Prince St.

Growing in a woodlot between Hulmeville Ave and Virginia Ave. Near the southern edge of the pond

Lancaster City. Common on W. Walnut St from crack in masonary and sidewalks.

Lancaster City. Growing in storm water catchment thing on the intersection of W. Walnut and N. Mulberry

Chestnut Grove Natural Area. Growing along dry ridge next to the Susquehanna. In the woods adjacent to the powerline cut just E. of Mann's Run.

State Game Lands 156 north of US 322 and west of Walnut Run

Off transect. Growing on lower floodplain of Creek Lodge parcel.

Off transect. Growing on slope between driveway and trail.

Off transect, trail on north end of Creek Lodge parcel.

Off Transect. Growing on the lower floodplain of the Creek Lodge parcel.

Millersville University Biological Preserve, Growing between the powerline cut and the stream to the S of It. On mossy rocks

Millersville University Campus. Growing on the slopes of where Ford's run exits from under the pavement near the Maintenance building complex.

Edge of agricultural field beside softball field.

Millersville University Campus. Growing on waste soil just S. of the Pucillo Practice Football Field.

Common on a moist hillside between the powerline cut and the streambed to its south in the Millersville University Biological Preserve

6 mi. S. Montgomery on US 231; silty clay of beech-hardwood bottom

Millersville University Campus in sunny waste area S. of the Pucillo Softball Field.

Camp Shand powerline clearing near Penryn Lane

Growing on the slope just W. of Mann's run near it's mouth into the Susquehanna

East of Lake [presumed to be Millersville Campus. Peffer (1915-1983) lived in Lancaster Co. and collected a lot on campus.]

Serpentine barrens ca 1.0 mi W. of New Texas near old chrome mine at Y in road.

Very abundant throughout muskeg meadow. Collected on North Shore of Bay of Isles, east of otter creek, Knight Island

Roadbank of La. 134 just west of junction of Swartz - Fairbanks Road. Wet pineland

Pinchot State Park; old field located between midland and Lakeside trails

Growing from a crack in a schist like rock just W. of Mann's run near its confluence with the Susquehanna River

By U.S. 34 crossing of Platte River ca. 3 mi S.E. Grand Island; moist sandy clay of prairie

Rt. 222 s. of Lancaster last dirt road to Rt. at Maryland Border

Small Island north of Three Mile Island, relatively undistributed; north center of island; common in shade of Btula nigra.

Along a cornfield on the Norman Ernst farm near Bernville

J.B. Raby farm, stream at Springwood Rd

J.B. Raby farm, Field at RR on Springwood Rd.

Edge of a corn field on the Norman Ernst farm near Bernsville

Rt 209, 1 mile N of Marshall's Creek

Along Muddy Creek in Fivepointville

Moraine State park, near Isle along muddy creek, bed of future lake Arthor

near canal, S. of Lewisburg Montandon Rd.

Laurel Hill lake, vicinity of boat launch

Moraine State Park, Shannon Run near Mt Zion Church, bed of future lake Arthur; Disturbed area. Edge of woods

Plot of Marine Science Consortium [now the Chincoteague bay field station] S.W. of main gate to Wallops Island base.

Lower end of York Haven dam, opposite american flag on dam.

Near lewisburg

Field at leaf park pond

Conestoga Roadside on moist bank

YMCA Camp Shand. Main pond.

Penryn Powerline cut W. of Camp Shand Growign on road bed in wet area

Hersey. South hillss

YMCA Camp Shand edge of parking lot outside of cafeteria

White Sulphur springs.

Wooded hillside. 1 mi NW centerville.

YMCA Camp Shand edge of the large pond near the outflow of the dam