Tall Boneset (Eupatorium altissimum)
Tall Boneset flower cluster and leaf sketch (Eupatorium altissimum) growing on a dam embankment at Lake Goede in Iowa.

Details:  Canon EOS 10D,  shutter 1/350 second, aperture f9.5, ISO 400, Canon EF 100 mm macro lens, no flash
 

Selected References:

Bailey, Tom. "Tall Boneset." Prime Focus Iowa. <http://www.primefocus-iowa.com/TallBoneset.html> (12 Sep. 2004).

USDA-NRCS. "Plant profile for Eupatorium altissimum." The PLANTS Database (http://plants.usda.gov/ ). National Plant Data Center, Baton Rouge, LA 70874-4490 USA. 2004. <http://plants.usda.gov/cgi_bin/plant_profile.cgi?symbol=EUAL3> (12 Sep. 2004).