This section is from the book "Nature's Garden", by Neltje Blanchan. Also available from Amazon: Nature's Garden; An Aid To Knowledge Of Our Wild Flowers And Their Insect Visitors.
Flowers - Bright yellow, about 1/2 in. long, with a spur half the length of the tubular corolla; irregular, lipped; each upheld by a little bract, mostly at a horizontal; borne in a terminal, short raceme. Stem: Smooth, 6 to 14 in. high, branching. Leaves: Finely dissected, decompound, petioled. Fruit: Sickle-shaped, drooping pods, wavy lumped, and tipped with the style.
Preferred Habitat - Woods, rocky banks.
Flowering Season - March - May.
Distribution - Minnesota to Nova Scotia and Pennsylvania.