Bulbous Fumitory (Corydalis Bulbosa) - A compact tuberous-rooted kind, 4 inches to 6 or 7 inches high, with dull purplish flowers in April, and a solid bulbous root, quite hardy, and of easy culture in almost any soil.
Ledebours Fumitory (Corydalis Ledebouriana) - Distinct on account of its peculiar glaucous leaves, arranged in a whorl about half-way up the stem, 9 to 12 inches high.
Yellow Fumitory (Corydalis Lutea) - Graceful masses of delicate pale green leaves dotted with spurred yellow flowers.
Fumitory (Corydalis) - A numerous family, of the Poppy order, not many important for the garden.
Bracted Fumitory (Corydalis Bracteata) - A distinct kind, with yellow flowers.
Climbing Fumitory (Adlumia) - Climbing biennial plants.
Ashes particularly rich in potash are those of burning nettles, wormwood (Artemisia absinthium), tansy (Tanacetum vulgare), fumitory (Fumaria officinalis), and tobacco.