IUCN threat status:

Not evaluated

Comprehensive Description

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This native perennial plant is 1½–3½' tall, branching occasionally. The ridged stems are pubescent. The alternate compound leaves are odd pinnate, and 5-9" long, with about 21-31 leaflets. The oblong leaflets are about 1½" long and 3/8" across, with smooth edges. From the upper axils of the compound leaves there occasionally develops a whorled raceme of flowers from a stout stalk. A raceme (including the stalk) is usually about 1-2" longer than the compound leaves subtending it, or about 7-11" long. A typical raceme is crowded with about 75 creamy flowers, which may have yellow or green tints. Each flower is about ¾" long and tubular-shaped, although jutting slightly upward toward the outer tip. It consists of five petals, including a curved upper hood, a lower keel, and close-fitting side petals. The blooming period occurs during the summer and lasts about 2-3 months. There is no noticeable floral scent. The flowers are replaced by stout oval pods with long pointed tips, which are held nearly erect on the stalk. The root system consists of a taproot. Cultivation


Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© John Hilty

Source: Illinois Wildflowers

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