29 October 2023.
St Louis County, Missouri, United States
Locality: Columbia Bottoms Conservation Area. North East side of Duck Island south of the confluence of the Missouri and Mississippi rivers.
Coordinates: 38.8038, -90.1233
(Map it)
Elevation: 130m.
Georeference protocol: Lat/Lon determined from GIS
Habitat: Wild Habitat
Environment description: River's edge near a transition between the silty riverbank and sand of a large sand bar.
Number of plants sampled: 7
Associated species: Chenopodium album was common nearby higher on Duck Island and the western riverbank especially on natural levies growing on heavy silt soil. No Chenopodium plants were observed on the lower and very wide sandy areas where Amaranthus tamariscinus was. Populus deltoides seedlings were growing in the immediate vacinity.
Aspect: East;
Soil Texture: Sand
Collector(s):