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20 miles east of Greeley, south Platte river, Weld County, Colorado.

Benton County: One half mile west of Halsey. In lush grass along the fence row above the ditch.

3 mi SW of Loup City on Ridge Road. In vative pasture with other native grasses.

Unspecified. Cody fen.

Loc. 3 miles Northwest of West Point on Hy US 275; coll. along railroad tracks. Cuming co., Nebraska.

Prairie, Venango.

Canyon Heights development area, west of Belton, overlooking Lake Belton

Garland, 2.5 mi N, 0.5 mi E; Loess/glacial driff hills. Herrold Tract T12N R04E Sec28: E2 NE4 SW4. Eroding E-facing bank and bottom of narrow N-S trending Quercus macrocarpa forested tributary of Middle Oak Creek.

Wet, low ground near Kearney

In deep maple-basswood forest, on slope above Straight River, Kaplan's Woods park, Owatonna. Steele County, Minnesota.

Douglas Co: Lawrence. Near SW corner of 10th and Ohio Sts, and W along S side of 10th St. T12N R20E Section 31 SW1/4 of SW1/4 of NW1/4. 38.9656 degrees N, 95.2408 degrees W (det by GPS; datum = WGS84). Elevation 890-910 ft. Weedy plantings and woodlot on

Close to brook on north side of Great Salt Lake, near Ogden.

Cherry County: 42.81111 Latitude, -100.590909 Longitude. 2434 Ft. Elev.; Quadrangle: ; Central Niobrara River Valley, NE. Marty Vanderploeg property, approximately 3.5 miles south of Valentine, NE. Map Datum: WGS84/NAD83.; Along roadway adjacent to marsh

North of North Platte River at bridge on county road 1 mile S of Llewellen [sic]. on riverbank

Platte County. T16N R1W Sec 3. On sandy riverbank of Platte River, southwest of Columbus.

Common shady places. In the Loup River bottoms s-e of Columbus, near the junction with the Platte River. Soil sandy-loam.

Roadside west side of Grand Island; common.

Manti Forest (now Manti-La Sal National Forest),spring by east end of Philadelphia Flat, west of the Ephraim Canyon Road, beyond the Great Basin Experimental Range, 9600 ft elev.

Cherry County. Norden Quad. Sec. 12, T33N, R24W. Plant found in seepage wetland on N-side of Niobrara River, due W of County Line Bridge. Frequent at site. Summer 1983.

4 mi E Keene. Dry, low area.

5 mi W Hiway 15; 1 mi S Hiway 4.

On Middle Loup River, near Mullen, in meadow

Hal and Fern Cooper Wildlife Management Area; west-central portion of Middle Pasture. T24N, R22W, SW 1/4 of 13. Bouteloua gracilis - Buchloe dactyloides sod

Sheridan County. N42.564661 W102.414478 (NAD83) ▒ 3m. T30N R43W NE╝ SW╝ 19. Niobrara River - 2.6 mi. E of Hwy. 250. Seepy area on southern bank of Niobrara River. Sandy/organic soils. Forming dense patch ca. 5 x 10m. With Carex pellita, C. hystericina, C.

Laurens County: Sumter National Forest, Enoree District. Beaver pond on South Fork Duncan Creek, southeast of terminus of Rail Ln., east of Stomp Springs Rd., 10.3 km northeast of Joanna, SC. Frequent in dry woods above pond. ca. N34 29' 09", W81 44' 23".

Oklahoma. LeFlore Co. Ouachita National Forest: Indian nations National Scenic and Wildlife Area. Approximately 10.0 mi S, 5.0 mi W junction of Hwy 128 and Hwy 59/270 in Heavener. From junction of Hwy 259 and Hwy 1: 3.45 mi W on Hwy 1, then 1.15 mi NW on

Europe: Austria or Germany or Switzerland, 5 km N of Unterpullendorf

Open mountain sides, warm sandy basins; Darwin Mesa, road to Coso Mts. W. of Darwin, Inyo Co. Cal.; Alt. Ft.: 4000, Belt: Covillea

Thin soil near ties of CB&Q RR near Rt. 8 crossing east of Salem.

Atkinson, 8.8 mi S, 0.7 mi E. Nebraska Sandhills: W side of Nebr. hwy 11. T28N R14W SEC17 NE╝ NE╝ NE╝. 42.40568 N, 98.96400 W, WGS84 (det GPS). Elev 2160-2165 ft (det topo map). Margin of subirrigated Xyris torta - Juncus spp. - Sorghastrum nutans wet mea

Abundant in Platte River bottomland virgin prairie on sandy loam. With Zizia aptera, Lobelia spicata, Agrostis stolonifera. Flowers white.

Cushman

Pawnee Prairie State Wildlife Management Area. Near East parking lot, 614 Ave.

Banks of the Arc River, Aix-en-Provence

Lat. ca. 40 degrees N. Habitat: Roadside ditch. Locality: Benkelman, 1 mi. W. Altitude: 2770.

Wet peaty soil under Salix and Amorpha fruticosa at margin of cattail marsh in seepage meadow on floodplain terrace, S side of the Niobrara River, Drinkwalter exclosure, NE corner of McKelvie National Forest, ca 2 mi downstream from Anderson Bridge (10 mi

T35N R54W, NE 1/4 SW 1/4 s25. in shallow water with floating and emergent leaves, muddy silty clay in S end of dugout pond W of Long Branch Cr., SE part of Pasture 21B, Oglala National Grasslands, ca 3 mi. SSE of Ardmore, SD;

Otoe County: 40.68991░N Lat., -95.85061░W Long. Riverview Marina State Recreation Area. Base of east-facing slope of Missouri River floodplain. Growing in association with Acer negundo, Juglans nigra, Gymnocladus dioicus, Celtis occidentalis, Fraxinus pen

Nemaha Co., 6 miles west of Peru. Growing on true prairie hillside.

Roadside ditch along Hwy 53, S of RR tracks, not far from Artesian spring runoff pond, Alexandria. Occasional

Milford, Del.

Brown Co. Collected on an open mixed grass prairie on the S side of Plum Creek, ca 8.5 mi NNE of Johnstown. Plants locally common in sandy loam to sandy soil. SW 1/4 sec 33, T31N, R23W

T17N R7E, SE1/4 s21. Sandy lowland prairie near Platte River, 2 mi. N of Cedar Bluffs. occasional, with Hedyotis purpurea, Lithospermum, Polytaenia, Anemone

Laguna Puerca, San Francisco County, California.

Adundant along roadside of unmarked gravel road in pine plantation ca. 6 mi SE of Franklinton in Sec 12 T3S R11E. Washington Parish, Louisiana.

T22N R17W NE1/4 NE1/4 Sec. 6 (Calamus Wildlife Management Area). Common on small seepy areas. Associated with: Thelypteris palustris, Agrostis hyemalis, Typha latifolia, T. angustifolia.

Plainfield loamy sand, East Muskegon, Muskegon Co., Michigan.

Long Pine, Neb. c. 2 miles South on W side creek.

From Morton arboretum. Neb. City

T31N R50W, NW1/4 NE1/4 NE1/4 s33. Uncommon in sandy loam soil on low slope along E side of meadow along E. Ash Cr. not far from shady pull-off W of road, Pasture 14, Pine Ridge Unit Nebraska National Forest, ca 9 1/2 mi. W, 14 mi. S of Chadron.