23 June 2017.
Polk County, Iowa, United States
Locality: Private property approximately 2.6 miles east, northeast of Polk City, T81N R24W NW ¼ SE ¼ Sec. 32
Coordinates: 41.7809, -93.6646
(Map it)
Elevation: 300m.
Georeference protocol: Lat/lon determined by GPS
Habitat: Wild Habitat
Environment description: Native remnant, extremely high-quality hay prairie (circa 40 acres) with diverse soil types (classic swell and swale topography) with both pothole marsh and mesic prairie areas that has been in family name since mid 1800’s. Never been plowed. Extremely biologically diverse, seasonally wet prairie.
Number of plants sampled: 25
Associated species: Eryngium yuccafolium, Monarda fistulosa, Asclepias tuberosa (common), Asclepias sullivantii (rare), Asclepias syriaca, Asclepias incarnata, Zizia aurea, Coreopsis palmata, Baptisia bracteata (common), Thalictrum dasycarpum (common), Rosa sp., Carex haydenii, Carex sartwellii, Echinacea pallida, Lithospermum canescens, Cirsium pumilum var. hillii (circa 12 plants noted), Lilium philadelphicum (circa 12 plants noted), Polytaenia nuttallii (rare), Helianthus spp., Comandra umbelata, Silphium laciniatum (common), Iris virginica, Heliopsis helianthoides, Achillea millefolium, Cicuta maculata, Stachys palustris, Hesperostipa spartea, Liatris aspera, Liatris pycnostachya, Pedicularis lanceolata, Hyposix hirsuta, Arnoglossum atriplicifolium, and Ceanothus herbaceous. Species actively blooming on 25 May 2017 included: P. pilosa, C. herbaceous, Z. aurea, C. umbellata, and L. canescens. Species actively bloomin on 23 June 2017 included: A. tuberosa, A. syriaca, A. incarnata, C. palmata, C. maculata, L. philadelphicum, C. pumilum var. hillii, S. palustris, E. pallida, H. helianthoides, and A. millefolium.
Slope: 0
Comment: Extremely poor seed production in 2017 despite excellent flowering (peak bloom) noted on 25 May 2017. Population between 500-1,000 specimens.
Collector(s): - Carstens, Jeffrey D., USDA, ARS, NCRPIS
- Lown, Loren, Polk County Conservation Board
- Neal, Lael, Polk County Conservation
- Sheeley, Doug, Polk County Conservation