This section is from the book "Who's Who Among The Wild Flowers", by W. I. Beecroft. Also available from Amazon: A Field Guide to Edible Wild Plants.
Silver Cap: Lady's Ear-drop: Snap Weed: Wild Balsam: Wild Lady's Slipper. Impatiens biflora.
Touch-me-not Family. June - Sept.
A smooth-stemmed, branching plant, 2 - 5 feet high, found on brooksides and in moist, shady places. Nova Scotia to Oregon, south to Missouri and Florida.
Yellow, more or less spotted with reddish brown; sac longer than it is broad, tapering to an incurved spur. Seed pods burst when touched.
Long-stemmed, coarsely toothed.

Spotted Touch-me-not.
I. pallida.
Flowers pale yellow, sparingly dotted with reddish brown; sac broader than long with short spur. Most abundant northward.
 
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