15 May 2024.
Clayton County, Iowa, United States
Locality: Robert’s Creek Preserve just north of Forest Road approximately 4.2 miles north, northeast of Elkader, T94N R5W near center of Sec. 36.
Coordinates: 42.9137, -91.3799
(Map it)
Elevation: 260m.
Habitat: Wild Habitat
Environment description: Mixed hardwood forest. Very steep, moist, north-facing slope.
Number of plants sampled: 8
Associated species: Ulmus rubra (common), Diervilla lonicera, Cornus alternifolia, Cornus rugosa, Carya cordiformis, Quercus rubra, Fraxinus nigra, Sambucus pubens, Ostrya virginiana, Rubus idaeus subsp. strigosus (common), Aconitum noveboracense (extremely common), Amelanchier humilis (only 1 specimen noted), Mitella diphylla, Prunus serotina, Prunus virginiana, Viburnum rafinesqueanum, Lonicera dioica, Carex radiata, and Tilia americana.
Aspect: North;
Slope: 60;
Soil Texture: Loam
Comment: Specimens sampled were all located near mid-slope to base of slope spanning a linear stretch of approximately 45 yards. Generally an equal balance of male to female specimens. At time of sampling (15 May) specimens with female catkins were in various stages of maturity including some being green, some in peak fluff, some yellowish, with one specimen past peak (e.g. half of capsules on a catkin already dispersed). Species locally in peak flower included Mitella diphylla and Prunus serotina were very close to being in peak flower.
Collector(s):