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For information on State Natural Areas, contact:
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Wisconsin State Natural Areas Program Weir White Oaks (No. 347)

Weir White Oaks

Photo by Josh Mayer


Overview

Location

Lafayette County. T1N-R5E, Section 9. 52 acres.

Description

Description

Weir White Oaks features an excellent example of old-growth southern dry-mesic forest dominated by abundant large white oaks with red oak, basswood, sugar maple, and white ash. Also present is butternut (Juglans cinerea) a species of concern in Wisconsin, black walnut, eastern hop-hornbeam, and hackberry. Located on the east side of the Pecatonica River within what was historically a larger prairie matrix, the river protected the grove from the prairie fires that swept across the landscape from west to east. The grove has not been grazed and contains a diverse, well-structured understory dominated by native species. Shrubs include alternate-leaved dogwood, common winterberry, nannyberry, and arrow-wood. The extremely rich herbaceous flora includes showy orchis, sweet cicely, blue cohosh, Jacob's-ladder, hairy wood-mint, and clustered black snakeroot. Sugar maple reproduction is present in the eastern section of woods but absent to the west. Wier White Oaks is privately owned and was designated a State Natural Area in 2002.

Access

Driving directions

This site is privately owned and is open for research and educational use only. Please contact the SNA Program for more information.

Ownership

Weir White Oaks is owned by:

  • Private
Last revised: Thursday, October 19, 2017