PRE October 1998.
Zürich, Switzerland
Locality: Swiss Federal Research Station for Agroecology and Agriculture (FAL), CH 8046 Zurich.
Coordinates: 47.3000, 8.5000
(Map it)
Elevation: 442m.
Environment description: Sugarbeet field. Weakly pseudogleyic loamy brown soil from colluvium.
Number of plants sampled: 53
Collector(s):