United States, Florida, Leon, On site several acres in extent having been completely cleared of wet woodland vegetation during extended drought during 1987-88 then to some extent covered with fill-soil, a mixture of sand and fine black organic material. Soil now compacted and for the most part moderately wet, the whole area very abundantly colonized by annuals, mostly sedges. S side of Capital Circle (Fla. Rd 263) and 0.2-0.3 miles from its crossing of Capital Circle and Fla. Rt. 20, W side of Tallahassee