Sandbox Portal

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Sambucus canadensis L.

United States of America, Texas, Grayson, Habitat: about four miles east of Denison.

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United States of America, Texas, Grayson, Culms up to 19 dm. high. Loy State Park, 4 1/2 miles southwest of Denison; infrequent in moist open area along creek below dam.

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Eleusine indica (L.) Gaertn.

United States of America, Texas, Grayson, Sherman. Railroad yards, silty clay.

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Eriochloa contracta Hitchc.

United States of America, Texas, Grayson, 3 miles southeast of Denison. Sandy old field.

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Tridens flavus (L.) Hitchc.

United States of America, Texas, Grayson, Spikelets purplish-brown.; Post Oak Belt, 3 miles north of Gordonville at Cedar Bayou on Lake Texoma.

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United States of America, Texas, Grayson, sandy weedy areas of road construction along Hwy. 75, 0.5 miles S of bridge over the Red River, ca. 4 miles N of center of Denison. 33°49'N, 96°32'W. Prostrate, with erect inflorescences.

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Sorghastrum nutans (L.) Nash

United States of America, Texas, Grayson, Lay Lake Park, just off Loy Lake Road, ca. 7 km (by road) N of Hwy 82, ca. 2.5 km (by road) E of Hwy 131, ca 5.6 km (by air) SW of downtown Denison. ; ; Disturbed forest. Grass 1-1.5 m tall, stem red and purple. ; ; 33°43'55" N 96°35'44" W; ; Elev.: ca. 210 m, 210m

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Schizachyrium scoparium subsp. scoparium (Michx.) Nash

United States of America, Texas, Grayson, 3 miles southeast of Denison.; Sandy old field .

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United States of America, Texas, Grayson, Hagerman National Wildlife Refuge; Headquarters ca. 18 km (by air) NW of Sherman; ca. 10 km (by air) S of the Texas-Oklahoma state line.; ; Area near Mineral Creek (near old collapsed bridge & current gabbion Bridge), SW side of Refuge, near boundry, ca 4.2 km SW of Big Mineral Access Area. Disturbed semi shaded weedy area near creek. Pinkish white flowers. The plant itself is approximiately 1/2 m tall and is growing with cocklebur.; ; ca 33° 42' N 96° 48' W ; ; Elevation: ca. 190 m, 190m

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United States of America, Texas, Grayson, Hagerman National Wildlife Refuge; Headquarters ca, 18 km (by air) NW of Sherman; ca. 10 km (by air) S of the Texas-Oklahoma state line.; In middle of dried up bed of Meadow Pond, E of Mineral Creek, ca. 2.75 km SW of Big Mineral Access Area on road + parallel to Mineral creek, NE of where this road crosses Mineral Creek (near old collapsed bridge and current gabbion bridge).; Perennial; 2m tall; ocrea cilia 6 - 22 mm long; tepals white to pink; growing near low land dried up lake bed on roadside.; ca. 33°42' N 96°48' W; Elevation: ca. 190 m, 190m

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Rosa setigera Michx.

United States of America, Texas, Grayson, 2 mi. W. Sherman (highway) near lake

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Anemone caroliniana Walter

United States of America, Texas, Grayson, Scattered over Denison in lawns and grass. Common.

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Anemone caroliniana Walter

United States of America, Texas, Grayson, Collected in field across from Georgetown Baptist Church, 1/2 mile W of Fink, TX. Whitish flower, bractated, peduncle 3" - 5", leaves basal.

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Polygonum longistylum Small

United States of America, Texas, Grayson, Branches rooting at nodes; flowers pink. 11½ miles south of Whitesboro on Highway 10; alluvial sands. Herbarium of Southern Methodist University.

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United States of America, Texas, Grayson, Polygonaceae; Hagerman National Wildlife Refuge; Headquarters ca. 18 km (By air) NW of Sherman; ca. 10 km (by air) S of Texas-Oklahoma State line.; Near Goode Picnic Access/Picnic Area in NE part of the refuge. Exposed dry lake bad with Xanthium, Androecium, Cardiospermum, Heliotropium, and Cyterus. Plants herbaceous, ca. 1/2 m tall. Flowers pink in a spike-like raceme; swelled knees; lense-like fruit; stipules fused to form an ocrea.; Ca. 33°45'36"N 96°45'; Elevation: ca. 195 M, 195m

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United States of America, Texas, Grayson, Austin College Herbarium; Hagerman National Wildlife Refuge; Headquarters ca. 18 km (by air) NW of Sherman; ca. 10 km (by air) S of the Texas-Oklahoma state line.; Near Goode Picnic Access/Picnic Area in NE part of the refuge. Pink and purple flowers, swollen nodes, sheathed, ocrea; 1 m tall; low moist areas, abandoned or disturbed areas.; Ca. 33° 45' 36" N 96° 45' W; Elevation: ca. 195 m, 195m

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United States of America, Texas, Grayson, Hagerman National Wildlife Refuge; Headquarters ca. 18 km (by air) NW of Sherman; ca 10 km (by air) S of the Texas-Oklahoma state line.; Near Goode Picnic/Access Area in NE part of the refuge. Exposed lake bed. Herbaceous plant, swollen knees, pin corolla in raceme, lens-like fruit, stipules fused to form ocrea, ca 1/2 m tall, growing with Xanthium.; ca. 33° 45' 36" N 96° 45' W; Elevation: ca. 195 m, 195m

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Rosa foliolosa Nutt. ex Torr. & A. Gray

United States of America, Texas, Grayson, Roadside and railroad banks among grass and herbs, 2 miles north of Denison.; Fls. white, fragrant; plants forming patches.

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United States of America, Texas, Grayson, Limestone hillside, Elm Ridge drive near Denison. Herbarium of Harold Gentry.

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Houstonia angustifolia Michx.

United States of America, Texas, Grayson, by roadside, west of Gunter

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United States of America, Texas, Grayson, Herman Baker Park, 5 km (by road) SE of downtown Sherman, ca. 1.6 km S of Hwy. 56. ; ; Growing in slightly woody area near lake with Quercus shamardii, Ilex decidua and Bois D' Arc. Tree ca. 14 m tall and ca. 12 cm. DBH with red berries. ; ; 33°37'12" N 96°37'58" W; ; Elev.: ca. 220 m, 220m

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Rhamnus caroliniana Walter

United States of America, Texas, Grayson, Grayson County: Herman Baker Park, 5 km (by road) SE of downtoan Sherman, ca. 1.6 km S of Hwy. 56.; Disturbed field by lake with Juniperus and Bouleloua. Shrub ca. wm with 1 trunk, has black berries, leaf blades lanceolate and usually toothed. ; ; 33o 37' 12" N 96o 37' 58" W; Elev,: ca. 210 m

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United States of America, Texas, Grayson, Herman Baker Park, 5 km (by road) SE of downtown Sherman, ca. 1.6 km S of Hwy. 56. Growing in disturbed forest with Celtis and Maclura pomifera. Plant abouve 4 m tall with immature fruits red and mature fruits black. 33°37'12" N 96°37'58"W; Elev.: ca. 220

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United States of America, Texas, Grayson, Herman Baker Park, 5 km. (by road) SE of downtown Sherman, ca. 1.6 km S of Hwy. 56 Growing along dirt road approx. 30 m. from lake Maclura and Celtis. Tree 4 m. tall; fruits red. 33° 37' 12"N 96°37'58"W; Elev. : ca. 210-215 m., 210 - 215m

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Agrimonia rostellata Wallr.

United States of America, Texas, Grayson, 2 miles west of sherman.; Deep woods, rich black clay. Scattered.

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United States of America, Texas, Grayson, Near Texoma lake in Flemming Wells area

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United States of America, Texas, Grayson, Habitat in drainage ditch. Locality Lake Gunter, Gunter.

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Carex leavenworthii Dewey

United States of America, Texas, Grayson, 3.3 miles south of Collinsville.; Silty clay bottomland, along fencefow.

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Carex leavenworthii Dewey

United States of America, Texas, Grayson, 3.3 miles south of Collinsville.; Silty clay bottomland, along fencerow.

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Agalinis heterophylla (Nutt.) Small ex Britton

United States of America, Texas, Grayson, Stems branched above, about 5 dm. high. Loy State park, 4 1/2 miles southwest of Denison; frequent in grassland along creek below the dam.

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Viola rafinesquei Greene

United States of America, Texas, Grayson, Yards in Denison.

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Viola rafinesquei Greene

United States of America, Texas, Grayson, West of Pottsboro

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Viola rafinesquei Greene

United States of America, Texas, Grayson, Collected in yards in Denison. Herbarium of The University of Texas.

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Aristida purpurascens Poir.

United States of America, Texas, Grayson, Post Oak Belt, 3 miles north of Gordonville at Cedar Bayou on Lake Texoma.

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Juncus dudleyi Wiegand

United States of America, Texas, Grayson, On lake texana near Presbyterian camp.

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Juniperus virginiana L.

United States of America, Texas, Grayson, Oak Ridge school district east of Denison Texas.

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Juniperus virginiana L.

United States of America, Texas, Grayson, Scattered over hillside near creek two miles northeast of Denison. Herbarium of The University of Texas.

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Juniperus virginiana L.

United States of America, Texas, Grayson, Evergreen tree, 10 ft. high, branch tips drooping.; Post Oak Belt, 3 miles north of Gordonville at Cedar Bayou on Lake Texoma; sandy soil, shade.

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Juniperus virginiana L.

United States of America, Texas, Grayson, Herman Baker Park, 5 km (by road) SE of downtown Sherman, ca 1.6 km S of Hwy. 56.; Found near a grassy roadside with Rhamnus and Maclura.; 33°37'12" N 96°37'58" W; Elev.: ca. 220 m, 220m

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Juniperus virginiana L.

United States of America, Texas, Grayson, Growing in sandy soil in field just off park road. 4.2 mi SW of park hdq bldg. on auto tour route.

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Juniperus virginiana L.

United States of America, Texas, Grayson, 2 mi. S. of Denison P.O. upland forest, sandy soil.

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Juniperus virginiana L.

United States of America, Texas, Grayson, Lake Texoma N33 56.101 W96 56.554. Limestone soil in Grand Prairie. Site overlooking Kgw limestone

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Juniperus virginiana L.

United States of America, Texas, Grayson, Six miles south of Pottsboro post office. Sandy soil.

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Juniperus virginiana L.

United States of America, Texas, Grayson, Collected 12 miles W. of Denison P.O. in Bottomland forest. sandy loam.

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Juniperus virginiana L.

United States of America, Texas, Grayson, Juniperus of North Central Texas; ; Lake Texoma N33 56.101 W96 56.554; ; Habitat: Limestone soil in Grand Prairie. Site overlooking Kgw limestone

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Allium drummondii Regel

United States of America, Texas, Grayson, Scapes slender, ca. 2 dm. tall; perianth parts white, 6-6.5 mm. long. 1/2 mile north of Gunter.

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Allium drummondii Regel

United States of America, Texas, Grayson, Scapes medium, ca. 2 dm. tall; perianth pale purple; most abundant of the three forms. 1/2 mile north of Gunter.

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Ligustrum sinense Lour.

United States of America, Texas, Grayson, privet, Chinese; Denison, Eisenhower Birthplace State Park, Crockett Ave. & Nelson St, along east wooded boundary and intermittent stream. [33.76 N; 96.56W] Narrow riparian woodland and weedy margins. Abundant. Shrub 1-3 m tall, fr turning blue-black.

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Dalea lanata Spreng.

United States of America, Texas, Grayson, Ciaccio Sand Pit; sandy area in what was the old bed of the Red River, just south of current Red River channel, approx. 6.5 km (by air) ENE of Denison, north of Hwy 120. Located in an open weedy area with loose sand on the dry Red River bed. It is found with Xanthium sp. and Polanasia dodecandra. Plants herbaceous, prostrate on the sand and with small, violet flowers.; 33° 46' 38" N 96° 28' 18" W; Elevation: ca. 150 m., 150m

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Quercus shumardii Buckley

United States of America, Texas, Grayson, Herman Baker Park, 5 km (by road) SE of downtown Sherman, ca. 1.36 km S of Hwy. 56.; Along trail around Pickens Lake. Growing with Quercus muehlenbergii, Juniperus virginiana, and Celtis laevigata.; Woody, ca. to 20 m tall. Foliage size extremely variable.; Elevation: ca. 200 m 33° 37' 12" N 96° 37' 58" W 17 Oct. 2007, 200m

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Quercus muehlenbergii Engelm.

United States of America, Texas, Grayson, Herman Baker Park, 5 km (by road) SE of downtown Sherman, ca. 1.6 km S of Hwy 56. Along trial around Pickens Lake.; DBH 10 inches. ; DBH 10 inches. Growing on a slope with Quercus shumardii and Juniper. Brown acorn.; ca. 33° 37' 12" N 96° 37' 58" W; Elevation 220 m, 220m

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Quercus stellata Wangenh.

United States of America, Texas, Grayson, Around Waterloo Lake, ca. 10 km (by road) N of Hwy 82, at end of Park St. (a small dead end street off Loy Lake Road); ca. 2.5 km (by air) SW of Downtown Denison.; Found growing in woodlot at the edge of the eastern cross timbers. Green acorns. DBH, 2 ft.; ca. 33° 44' 14" N 96° 34' 10" W; Elevation 210 m, 210m

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Ambrosia trifida L.

United States of America, Texas, Grayson, Hagerman National Wildlife Refuge, Ca. 18 km (by air) NW of Sherman; ca. 16 km (by air) S of the Texas-Oklahoma state line. Just inside east boundary of Refuge, off Refuge Road (inside gate where Refuge Road takes a 90° turn to the north).; Growing in a weedy semi-open area invaded by trees, including Ulmus crassifolia, and Gleditsia triacanthos. Also growing near No. 20.; Plant ~3' tall, but other individuals of varied height. Commonly referred to as Blood Ragweed or Giant Ragweed.; ca. 33° 44' 3" N 96° 44' 51'; Elevation: ca. 195 m, 195m

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Ligustrum sinense Lour.

United States of America, Texas, Grayson, Around Waterloo Lake, ca. 10 km (by road) N of Hwy. 82 at end of Park St. (a small dead end street off Loy Lake Road); ca. 2.5 km by air) SW of downtown Denison.; Edge of mixed deciduous woods near creek with Vitus sp, Carya illinoensis, and Lonicera japonica. Woody around 5 m tall with shiny leaves and vine-like stems.; Elevation: ca. 210 m.; 33° 44' 14" N, 96° 34' 10" W., 210m

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Eupatorium serotinum Michx.

United States of America, Texas, Grayson, Northern part of county; Loy Lake Park, just off Loy Lake Road, ca. 7 km (by road) N of Hwy. 82, near Loy Lake exit off of Hwy 75, ca. 5.6 km (by air) SW of downtown Denison. Growing near lake, associates with Glottidium vesicarium. White inflorescences. 3-4ft tall. ca. 33° 43' 55" N 96° 35 44" W Elevation 210 m, 210m

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Ligustrum sinense Lour.

United States of America, Texas, Grayson, Around Waterloo Lake, ca. 10 km (by road) N of Hwy 82, at end of Park St. (a small dead end street off Loy Lake Road); ca. 2.5 km (by air SW of downtown Denison.; Shrub found at the edge of Lake Waterloo, near Quercus shumardii and Carya tomentosa. Simple, pinnately compound leaflets ranging from 1 to 5 cm in length. Small greenish brown fruits grouped in clusters of 15 to 20 fruits, about 2 mm in diameter each.; Ca. 33° 44' 14" N 96° 34' 10" W; Elevation: ca. 210 m, 210m

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Liatris elegans (Walter) Michx.

United States of America, Texas, Grayson, Sneed property, North of Hwy 82.; clay soil, found in grassy area.; Found in sunny area, 2 ft. tall. Purple spike like flowers.; Lat: N 33° 41 min 19 sec, W 96° 41 min 19 sec; elev. 210 meters, 210m

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Frangula caroliniana (Walter) A. Gray

United States of America, Texas, Grayson, Around Waterloo Lake, ca. 10 km (by road) N of Hwy 82, at end of Park St. (a small dead end street off Loy Lake Road); ca. 2.5 km (by air) SW of Downtown Denison.; Shrub size about 6-7 ft tall growing near a stream bed at the edge of a cross timber forest with black hickory texas (Carya texana), post oak (Quercus stellate), and eastern red cedar ( Juniperus virginiana).; Ca. 33° 44' 14" N 96° 34' 10" W; Elevation: ca. 210 m, 210m

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Juniperus virginiana L.

United States of America, Texas, Grayson, Evergreen tree 15 ft. high; 8 inches in diameter; bark shreddy; berries light gray-blue. Post Oak Belt, 3 miles north of Gordonville at Cedar Bayou on Lake Texoma; sandy soil.

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Eupatorium serotinum Michx.

United States of America, Texas, Grayson, Northern part of country; edge of Red River near mouth of Shawnee creek, just east of Denison Dam (which forms Lake Texoma).; ; Approximately 1.5 m near stream bank near plants of equivalent size; Adequate space between other plants good exposure to sunlight; 0.75 m tall; inflorescences of white flowers.; ; ca. 33° 49' 11'' N 96° 34' W; ; Elevation: ca. 155 m, 155m

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Ligustrum sinense Lour.

United States of America, Texas, Grayson, Around Waterloo Lake, ca. 10 km (by road) N of Hwy 82, at end of Park St. (a small dead end street off Loy Lake Road); ca. 2.5 km (by air) SW of Downtown Denison.; Located at edge of creek bottom in cross timbers forest. Shrub approximately 15 ft tall with multiple trunks and light green seeds. Associates: Corpus shumardii and Carya texana.; 33° 44' 14"N 96° 34' 10" W; Elevation: ca. 210 m, 210m

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Heliotropium convolvulaceum (Nutt.) A. Gray

United States of America, Texas, Grayson, Ciaccio Sand Pit; sandy area in what was the old bed of the Red River, just south of current Red River channel, approx. 6.5 km (by air) ENE of Denison, north of Hwy 120.; Found growing in desert-like sand pit with Capparaceae and Cycloloma, ca. 1/2 m tall with white fused flowers.; Elev.: ca. 150 m. 33° 46' 38" N 96° 28' 18" W, 150m

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Clematis terniflora DC.

United States of America, Texas, Grayson, Around Waterloo Lake, ca. 10 km (by road) N of Hwy 82, at end of Park St. (a small dead end street off Loy Lake Road); ca 2.5 km (by air) SW of downtown Denison.; High climbing vine longer than 3 m alongside Quercus stellata. Leaflets in fives, ranging from 2 to 5 mm in length, White rotate flowers in threes with green achenes.; Ca. 33° 44' 14" N, 96° 34' 10" W; Elevation: ca. 210 m., 210m

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Lonicera maackii (Rupr.) Maxim.

United States of America, Texas, Grayson, Herman Baker Park, 5 km (by road) SE of downtown Sherman, ca. 1.6 km S of Hwy 56. Along trail around Pickens Lake.; Deciduous shrub with dark red fruits approximately 24 mm in diameter. Shrub is about 8 ft. tall and has acuminate short, petioled leaves. Found at the adjacent end of dam near the edge of mixed forest with genera Ulmus (slippery elm), Ligustrum (privet), and specimen of Acer negundo (box elder).; Ca. 33° 37' 12" N 96° 37' 58" W; Elevation: ca. 220 m., 220m

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Glottidium vesicarium R. M. Harper

United States of America, Texas, Grayson, Northern part of county; along Shawnee Creek just upstream from where it empties into the Red River, just east of Denison Dam (which forms Lake Texoma).; ; Located on the Preston Anticline, rooted in the Kiamichi layer. Plants herbaceous ca. 2 m tall with red-orange flowers and yellow green fruit pods.; ; ca. 33° 48' 45" N 96° 34' 12" W; ; Elevation: ca. 159 m, 159m

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Ilex decidua Walter

United States of America, Texas, Grayson, McCarley Woods Preserve, approximately 8 km E of downtown Sherman just S of Hwy 56. Accessed by turning S on small county road immediately E of where Choctaw Creek crosses Hwy 56. The preserve is on the left of this small road approximately 0.5 km S of Hwy 56.; Growng along the fence of a blackland prairie edge with the Toothache tree and KR blue stem. Approximately 18 feet tall with an 6 inch DBH. Several red fruits (.3 cm diameter) are growing along the stems.; ca. 33 ° 37' 49" N 96 ° 29' 32" W; Elevation: ca. 183 m; Botany Class, 183m

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Gossypium L.

United States of America, Texas, Grayson, 3 miles west of Sherman. In black clay, full sun. Cultivated.