Hydrophyllum appendiculatum Michx.

Taprooted biennial; stems 3–6 dm, the upper part and infl densely pubescent with short slender hairs 0.3–0.5 mm and conspicuously hirsute with spreading hairs usually 2–3 mm; cauline lvs mostly overtopped by the cymes, orbicular in general outline, 6–15 cm wide at anthesis, truncate or with a broadly V-shaped base, shallowly 5–7-lobed, with obtuse or rounded sinuses; sep separate nearly to the base, densely hirsute, alternating with conspicuous small reflexed appendages; cor lavender or pink-purple, 9–13 mm, the lobes about equaling the tube; stamens and style exsert 1–3 mm; 2n=18. Rich moist woods; s. Ont. to s. Minn., s. to Pa., Tenn., Mo., and e. Kans. May, June. (Decemium a.)

It is a temperate plant. It grows in forests on limestone.

The young shoots are eaten as a salad.

Can be grown by seedlings.