Helianthus tuberosus L.

• Region

  North America

• Country

  United States of America

• State/Province

  District of Columbia

• Locality

  Potomac Flats

• Coordinates

  38.8822, -77.0448

• Coordinate Uncertainty (m)

  8941.57

• Georeferencing Method

  GEOLocate Web Application. Located coord. midpt. of Potomac River in DC by measuring between start+end of river within area, halving dist., finding shore near midpt. Measured from coord. - farthest ext of river = linear ext (8930 m). Input info into MaNIS Georef. Calc. =uncert.

• Distribution

  Map all specimens of this taxon

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SMITHSONIAN INSTITUTION
From THE UNITED STATES NATIONAL HERBARIUM
PLANTS' OF THE DISTRICT OF COLUMBIA
AND VICINITY
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ALBERT RUTH, Collector
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