Broadleaf Arrowhead (Sagittaria latifolia)

In the (gasp) Arrowhead family
7/4/08 Finger Lakes, NY
http://plants.usda.gov/java/profile?symbol=SALA2&photoID=sala2_001_avd.tif

http://www.delawarewildflowers.org/plant.php?id=1764

here's one that seems to be off a bit:
http://www.il.nrcs.usda.gov/technical/plants/npg/pg122-123.html

and more info from EOL:
http://eol.org/pages/1082206/entries/34657178/overview
they say:
"1) The basal lobes are one-half as long to longer than the blades of the leaves, 2) The green bracts at the base of the whorled flowers are shorter than the pedicels (less than 1" in length), and 3) Each achene is winged along the flattened edges and it has a straight beak that projects laterally from the center of the fruit. Other Arrowhead species have unlobed leaves, or they have leaves with basal lobes that are less than one-half the length of the blades; their floral bracts are often longer than the pedicels; and their achenes are shaped differently, often with beaks that are curved or project upward from the center of the fruit."

See also Jim Conrad's discussion of another Arrowhead species in which he also mentions Broadleaf Arrowhead (S. latifolia):
http://www.backyardnature.net/n/12/120819.htm
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