| 0 | PI 664747 | LAET-2643 | Helianthus ×laetiflorus Pers. | Missouri, United States | NC7 |  | | 2009 | COLLECTED | 09/28/2009 | West side of Highway P, 100 yards south of 310 Street, across highway from southeastern edge of Benedictine Convent of Perpetual Adoration, south of Clyde, Nodaway County. | 40.25666667, -94.66861111 | 320 | Grassy roadside ditch. | Wild material | | 1823704 | PI 664747 |
| 1 | PI 664749 | LAET-2645 | Helianthus ×laetiflorus Pers. | Kansas, United States | NC7 | | | 2009 | COLLECTED | 09/29/2009 | East side of Highway 99, about 2 miles south of Highway 36, east of Marysville, Marshall County. | 39.81444444, -96.41722222 | 390 | Grassy roadside ditch and slope. | Wild material | | 1823705 | PI 664749 |
| 2 | PI 664750 | LAET-2649 | Helianthus ×laetiflorus Pers. | Kansas, United States | NC7 | | | 2009 | COLLECTED | 09/29/2009 | Northwest side of Highways 9 and 15, southwest of intersection with Prairie Road, about a mile north of Linn, Washington County. | 39.68861111, -97.07027778 | 442 | Grassy, level area between highway and abandoned railroad. Delineated x laetiflorus patch with pauciflorus on either side. | Wild material | | 1823706 | PI 664750 |
| 3 | PI 664763 | LAET-2662 | Helianthus ×laetiflorus Pers. | Kansas, United States | NC7 | | | 2009 | COLLECTED | 10/01/2009 | South side of Highway 31, across from a maintenance area, about 0.7 mile east of Interstate 335, west of Burlingame, Osage County. | 38.75388889, -95.92388889 | 343 | Grassy roadside slope. | Wild material | | 1823707 | PI 664763 |
| 4 | PI 503236 | 1929 | Helianthus ×laetiflorus Pers. | Massachusetts, United States | NC7 |  | | 1985 | COLLECTED | 10/23/1985 | Hwy 32N, 1.6km N of Monson, Hampden Co., MA | 42.00000000, -72.00000000 | | | Wild material | Collected by G. Seiler, W. Roath, and D. Skoric. Plants growing along east side of road in wooded draw in sandy loam. Population small. Collection from 8 plants. Roots not enlarged. Leaves narrow, stiff. Severe rust present. | 1398172 | PI 503236 |
| 5 | PI 503289 | 1930 | Helianthus ×laetiflorus Pers. | Massachusetts, United States | NC7 |  | | 1985 | COLLECTED | 10/23/1985 | Hwy 32S, 0.8km S of Palmer, near Fenton Dr., Hampden Co | 42.00000000, -72.00000000 | | roadside in sandy loam | Wild material | Collected by G. Seiler, W. Roath, and D. Skoric. Plants growing along roadside in sandy loam. Population small, isolated. Collection from 10 plants. Leaves stiff, typical. No rust. Some stem pith damage. | 1398225 | PI 503289 |
| 6 | PI 503291 | 1935 | Helianthus ×laetiflorus Pers. | New Hampshire, United States | NC7 | | | 1985 | COLLECTED | 10/23/1985 | Hwy 10N, across from information center, East Lempster, NH | 43.00000000, -72.00000000 | | | Wild material | Collected by G. Seiler, W. Roath, and D. Skoric. Plants growing in waste area near woods in sandy loam. Population small, isolated. No tubers. Leaves wide, opposite, similar to H. laetiflorus. Seed set poor. No rust. | 1398227 | PI 503291 |
| 7 | PI 435709 | LAET-654 | Helianthus ×laetiflorus Pers. | Nebraska, United States | NC7 | | | 1978 | COLLECTED | | Sheridan County. | 42.51666667, -102.41666667 | | | Wild material | | 1330645 | PI 435709 |