Although the tall, branching growth of the Pink Corydalis does not compare satisfactorily with that of the low, clustered, and single-stemmed grouping of the Dutchman's Breeches, the peculiarly flattened corolla of the flowers suggests their kinship. At sight the dangling flowers of this species appear to be incomplete, and one fancies that there should be more of them. They look, for instance, as if they had been originally something like those of the Dutchman's Breeches, but that some one had cut them all in two, and that only a single part, or "leg," had survived the operation. They seem to rest on the point of their little stems like a tiny flock of fairyland swallows, undetermined whether to linger or depart, and there they bob and nod, and sway and swing in silent convention, until finally their spirit bids them and they are gone. The airy Corydalis reigns supreme wherever it can gain a foothold on the terraced balconies of rocky cliffs, in partially moist and open woods. It is found from Nova Scotia to the Canadian Rockies and Alaska, and south to North Carolina and Minnesota from April to September. The smooth, irregularly branched stem is pale green, sometimes slightly stained with red, and always covered with a whitish bloom. It grows from one to two feet in height, from a fibrous annual root. The comparatively small, compound leaf is pale green in colour, smooth and rather delicate in texture, with the under surface showing a whitish bloom. It is divided into several, often three or five, deeply cleft leaflets with their margins unevenly lobed and scalloped. The lower leaves have short, smooth and slender stems, and the upper ones are set alternately on the stalk. The strangely flattened flower is usually less than an inch in length. The irregular, tubular corolla has two pairs of erect and converging petals; one of the outer pair, which are joined together, is formed into a very short and rounded, bag-like spur on the upper part of its base, the inner pair are very narrow and are keeled on the back. The six stamens are arranged in two pairs of three each, opposite the outer petals. The fragile flowers hang upside down, and are gathered sparingly toward the end of a slender stem. They have a two-parted, scale-like calyx and one pistil. The spurred end of the flower is deep pink in colour, fading nearly to white toward the yellow-tipped end. The lovely plant, with its delicate shadings of pink, pale green, and yellow is especially pleasing. After the flowers perish, the seed pods become prominent, and when matured, they measure an inch or two in length. They are slender, flattened, and erect.