| 0 | Ames 36697 | APS/JC/2025/XXX/XXX | Juniperus communis L. | Iowa, United States | NC7 |  | | 2025 | COLLECTED | 09/15/2025 | Located off Iowa River Drive approximately 2.5 miles southwest of New Albin, T100N R4W NE 1/4 NW 1/4 Sec. 21. | 43.46830000, -91.32128000 | 207 | Sandy ridge of a power line cut. | Wild material | | 2192820 | Ames 36697 |
| 1 | PI 649714 | 13a | Drymocallis arguta (Pursh) Rydb. | Iowa, United States | NC7 |  | | 2003 | COLLECTED | 09/14/2003 | North Bear Creek Wildlife Area near Highlandville, T100N, R7W N edge of SE 1/4 of SW 1/4 of Sec. 25, Dorchester Quad, Winneshiek County. | 43.44583333, -91.62222222 | 311 | Dolomite cliffs. Half sunny. Edge of sheer cliff with a north to northwest aspect. Rock crevices. | Wild material | | 1649464 | PI 649714 |
| 2 | NA 89039 | RJL2022IL-001 | Ptelea trifoliata L. | Illinois, United States | NA | | | 2022 | COLLECTED | 09/28/2022 | Site of plant habitat is located at 823 E Co Rd 1220, Hamilton, IL 62341 which is the property where Jacob's Geode Shop and Mine is located. This species is scattered and relatively common throughout the woodlands on this site. | 40.37848400, -91.35390200 | 175 | Plants growing in shade to part-shade of deciduous woodlands above a small creek.
Soils: The underlying geology of this area is of Mississippian origin and comprised of Warsaw Formation and Salem Limestone. Major lithological components include limestone that can be shaly, oolitic, bioclastic, or cherty. Minor lithological components include siltstone that can contain geodes or drusy quartz and can be calcareous.
Source: USGS Illinois Geologic Map Data (https://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=ILMws%3B0)
The surface soil profile of this area is Coffeen silt loam, 0 to 2 percent slopes, that are frequently flooded. The Coffeen series consists of very deep, somewhat poorly drained, moderately permeable soils on flood plains, low terraces or benches, toe slopes, and alluvial fans. They formed in silty alluvium. Much of the alluvium is of local origin derived from the nearby loess-covered uplands.
Source: NRCS Web Soil Survey (https://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx) | Wild material | | 2139604 | NA 89039 |
| 3 | Ames 33918 | APS/GD/2017/008/267 | Gymnocladus dioicus (L.) K. Koch | Minnesota, United States | NC7 |  | | 2017 | COLLECTED | 03/16/2017 | Minnesota River watershed covering approximately 9.0 river miles between Redwood Falls and Vicksburg Park, Renville County | 44.61447700, -95.14878600 | 254 | Mixed habitats, both upland dry sites, wet sites, and rocky sites. | Wild material | | 1946985 | Ames 33918 |
| 4 | Ames 33921 | APS/GD/2016/001/236 | Gymnocladus dioicus (L.) K. Koch | Minnesota, United States | NC7 |  | | 2017 | COLLECTED | 03/17/2017 | Blue Earth River watershed covering approximately 9.0 river miles from Vernon Center south to the county line, Blue Earth and Faribault Counties | 43.87215300, -94.17375800 | 316 | Mixed habitats, both upland dry and wet sites. | Wild material | | 1946988 | Ames 33921 |
| 5 | Ames 32965 | JDC/BA/2015/051/708 | Betula alleghaniensis Britton | Iowa, United States | NC7 | | | 2015 | COLLECTED | 09/15/2015 | Yellow River State Forest, T97N R4W northern edge of SW 1/4 NW 1/4 Sec. 36 | 43.17782100, -91.26584600 | 227 | North-facing algific talus slope (45-60 degrees) adjacent to Paint Creek. Moist deciduous woods. Growing in association with Fraxinus nigra, Staphylea trifolia, Carpinus caroliniana, Quercus rubra, Acer saccharum, Cornus alternifolia, Amelanchier arborea, Ostrya virginiana, Viburnum opulus var. americanum, Cornus rugosa, Cornus alternifolia, Zanthoxylum americanum, Viburnum rafinesqueanum, Cypripedium pubescens, Ribes sp.,Corylus sp., Juniperus virginiana, Dirca palustris, Ulmus thomasii, Prunella vulgaris, Diervilla lonicera, Quercus macrocarpa, Carya cordiformis, Taxus canadensis, Tilia americana, Adiantum pedatum, and Aconitum noveboracense. | Wild material | | 1927435 | Ames 32965 |
| 6 | Ames 32966 | JDC/VA/2015/052/709 | Viburnum opulus L. var. americanum Aiton | Iowa, United States | NC7 |  | | 2015 | COLLECTED | 09/15/2015 | Yellow River State Forest, T97N R4W northern edge of SW ¼ NW ¼ Sec. 36. | 43.17778200, -91.26642800 | 239 | North-facing algific talus slope (45-60 degrees) adjacent to Paint Creek. Moist deciduous woods. | Wild material | Formerly known as Viburnum trilobum, American highbush cranberry (V. opulus var. americanum) is a North American native shrub that is utilized as an important ornamental and conservation plant that is also harvested as a minor fruit crop (jams/jellies). In nature, this variety is generally found in moist habitats typically along stream banks and swamps where ample moisture is readily available. The native range of V. opulus var. americana is concentrated in the northeastern United States and into Canada (Little, E. L. Jr. 1977). Attractive ornamental characteristics includes showy lacecap flowers in spring and bright red fruits and foliage in the fall. Fruits are tart with a hint of sweetness. The European highbush cranberry (V. opulus var. opulus) is nearly identical to American highbush cranberry other than small glands (<1 mm) on the petiole making the exact determination very challenging resulting in common misidentifications. A major difference between the American and European highbush cranberries is that the European variety produces unpalatable fruit. Recent research has shown that American and European highbush cranberries are genetically distinct and that plants of hybrid origin are uncommon (Tork et al. 2025). Vigorous early spring growth and good tolerance to late spring frosts. Genetic analysis from Tork et al. 2025 confirmed that genetics of this accession represents American highbush Cranberry (Viburnum opulus var. americanum). This accession represents genetics from northeast Iowa and thus the extreme western edge of the species native range. | 1927436 | Ames 32966 |
| 7 | WLP 1096 | JDC/CO/2015/025/681 | Cotinus obovatus Raf. | Missouri, United States | NA |  | | 2015 | COLLECTED | 05/19/2015 | T24N R16W NW 1/4 Sec. 4, SW 1/4 SW 1/4 Sec. 17, and SW 1/4 Sec. 9 Ozark County. Mark Twain National Forest Caney Picnic Area (County Road 935) | 36.79873000, -92.71575700 | 407 | Rocky, very shallow soils. Growing in association with Quercus muehlenbergii, Diospyros virginiana, Cercis canadensis, Viburnum rufidulum, Delphinium carolinianum, Penstemon cobea, Rudbeckia sp., Fraxinus americana, Fraxinus quadrangulata (few), Cornus florida, Oenothera macrocarpa, Juniperus virginiana, Tradescantia sp., and Silphium terebinthinaceum. | Wild material | | 1926254 | WLP 1096 |
| 8 | Ames 32895 | APS/GD/2015/018/200 | Gymnocladus dioicus (L.) K. Koch | Oklahoma, United States | NC7 |  | | 2015 | COLLECTED | 03/15/2015 | Canadian County: Near/adjacent to unnamed creek that empties into the Canadian River, T12N R10W SW 1/4 Sec. 20. Private property approximately 4 miles northeast of Hinton. | 35.49409300, -98.28655400 | 434 | Bottomland. | Wild material | | 1925361 | Ames 32895 |
| 9 | Ames 32092 | Ames 32092 | Viburnum rufidulum Raf. | Missouri, United States | NC7 | | | 2013 | COLLECTED | 10/13/2013 | Private property, north of 27640 EE Highway, NE 1/4 of SE 1/4 of Section 4, T47N R15W, Prairie Home, Prairie Home Quad, Cooper County. | 38.85910000, -92.56030000 | 236 | Wooded hillside. North-facing slope. | Wild material | | 1914036 | Ames 32092 |
| 10 | Ames 31982 | APS/GD/2013/004/089 | Gymnocladus dioicus (L.) K. Koch | Kansas, United States | NC7 |  | | 2013 | COLLECTED | 02/18/2013 | Walnut Creek watershed, southwest of Marysville, Sections 5, 8, and 17, T3S R6E, Marshall County. | 39.79300943, -96.78506600 | 382 | Dry floodplain. | Wild material | | 1907535 | Ames 31982 |
| 11 | Ames 31983 | APS/GD/2013/006/091 | Gymnocladus dioicus (L.) K. Koch | Kansas, United States | NC7 |  | | 2013 | COLLECTED | 02/19/2013 | Beaver Creek, south of Scandia, Sections 7, 12, and extreme NW 1/4 of NW 1/4 of Section 8, T4S R5W, Republic County. | 39.72143025, -97.81205050 | 432 | Dry floodplain. | Wild material | | 1907536 | Ames 31983 |
| 12 | Ames 31988 | APS/GD/2013/012/097 | Gymnocladus dioicus (L.) K. Koch | Kansas, United States | NC7 |  | | 2013 | COLLECTED | 02/21/2013 | Canville Creek, west of Savonburg, SW 1/4 of Section 25, T26S R20E, Allen County. | 37.74857200, -95.17660125 | 304 | Dry floodplain. | Wild material | Largest Gymnocladus dioicus specimen was 29.5 inches d.b.h. | 1907541 | Ames 31988 |
| 13 | Ames 31989 | APS/GD/2009/001/010 | Gymnocladus dioicus (L.) K. Koch | Kansas, United States | NC7 |  | | 2013 | COLLECTED | 02/21/2013 | Clinton State Park, west of Lawrence, Section 12, T13S R18E, Douglas County. | 38.93730038, -95.36213950 | 282 | Fairly dry, upland site. Majority of specimens found on upland areas. | Wild material | | 1907542 | Ames 31989 |
| 14 | W6 42854 | MSB283979 | Marshallia caespitosa Nutt. ex DC. | Texas, United States | W6 |  | | 2011 | | | | | | | Wild material | | 1895314 | W6 42854 |
| 15 | Ames 30090 | 01A | Fraxinus pennsylvanica Marshall | Kansas, United States | NC7 |  | | 2009 | COLLECTED | 09/14/2009 | Along Cedar Creek, 4.5 miles south of Cedar Point, Chase County. | 38.19250000, -96.81194444 | | Along a stream. | Wild material | | 1813253 | Ames 30090 |
| 16 | Ames 29975 | JDC/GD/2009/004/154 | Gymnocladus dioicus (L.) K. Koch | Nebraska, United States | NC7 |  | | 2009 | COLLECTED | 03/20/2009 | Ponca State Park, approximately 2 miles north of Ponca, T30N R6E Sec. 3 Ponca Quad., Dixon County. | 42.60166667, -96.71444444 | 365 | Variable from mid-level elevation sloped area to bottomland type. Variable exposure. 0-60 degrees of slope with variable aspects. | Wild material | Plants between 40 and 75 feet in height and 8 to 26 inches DBH. | 1798767 | Ames 29975 |
| 17 | Ames 27308 | 13 | Dasiphora fruticosa (L.) Rydb. subsp. fruticosa | Iowa, United States | NC7 |  | | 2003 | COLLECTED | 09/14/2003 | North Bear Creek Wildlife Area, Highlandville, N edge of SE 1/4 of SW 1/4 of Section 25, T100N, R7W, Dorchester Quad, Winneshiek County. | 43.44583333, -91.62222222 | 311 | Dolomite cliffs. Half sunny. Edge of sheer cliff with a N to NW aspect. Rock crevices. | Wild material | Small shrubs, 30 to 75 cm tall. | 1649465 | Ames 27308 |
| 18 | Ames 23752 | NSA 960194 | Quercus hybr. | Nebraska, United States | NC7 |  | | 1997 | COLLECTED | PRE 1997 | Southwest of Salem approximately 2.6 miles, T1N R15E NW 1/4 NW 1/4 Sec. 21, Richardson County. | 40.04268000, -95.74558000 | 330 | Prairie knoll/ridge, very dry and rocky substrate. Growing in association with Rhus sp., Liatris aspera (white and purple), Juniperus virginiana, Quercus rubra, Quercus macrocarpa, and Schizachyrium scoparium. | Wild material | Specimens at the collection site in nature are represented as very large/old plants, approximately 5.0 meters in height with trunk diameters to 25.0 cm. After 15 years of growth in cultivation in central Iowa, specimens average approximately 3.5 x 3.5 meters. This species is reported to sucker, but all specimens of this accession have shown no signs of suckering while grown in cultivation. Peak fall color tends to occur during the second week in October in central Iowa ranging from reddish-orange; brownish-red, brownish-orange, etc. Acorn production tends to be consistently heavy every year and can initiate production after three years in age. Peak fruiting tends to occur between 5-15 of September in central Iowa, which is approximately 1 week prior to Q. muehlenbergii. Acorns are extremely favored by deer, rabbits, raccoons, turkeys and bluejays. Quercus prinoides in Nebraska is extremely rare. To date (2022), only two counties totalling four localities have recorded this taxa including Richardson County: two areas near Salem; one in Indian Caves State Park and one in Nemaha County described as near Nemaha. Species tends to be restricted to dry rocky upland hills and bluffs. Recent research (Hipp et al., 2019), noted that using the unweighted pair group method with arithmetic mean and non-metric multidimensional scaling ordination did not separate individuals of Q. muehlenbergii and Q. prinoides as distinct species. However, W. M. Keith Jr. (1957) states that "Q. muehlenbergii never spreads vegetatively and acorns are rarely borne until it has attained small tree size whereas Q. prinoides bears at extremely small sizes, usually a foot or so high and spreads vegetatively via rhizomes". Therefore, genetics of this accession most likely represents the hybrid of Q. prinoides x Q. muehlenbergii under the assumption that the true Q. prinoides is represented only by those that clonally spread via rhizomes. Further research is needed to clarify the identity of Q. prinoides. This accession is therefore being listed as Q. hybr. Specimens are clearly "dwarf" or shrubby in growth habit and produce acorns at extremely early ages, but do not spread via rhizomes. | 1543547 | Ames 23752 |