skunk cabbage

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. An ill-smelling, eastern North American swamp plant (Symplocarpus foetidus) having minute flowers enclosed in a mottled greenish or purplish spathe.
2. n. A western North American plant (Lysichitum americanum) having a bright yellow spathe with an inflated upper part.

Century Dictionary and Cyclopedia

1. n. See cabbage.

Wiktionary

1. n. Symplocarpus foetidus, a low-growing plant native to the wetlands of eastern North America.
2. n. Lysichiton americanus, a low-growing plant native to the wetlands of western North America.
3. n. Lysichiton camtschatcense, a low-growing plant native to the wetlands of eastern Asia.

GNU Webster's 1913

1. n. (Bot.) an American aroid herb (Symplocarpus fœtidus) having a reddish hornlike spathe in earliest spring, followed by a cluster of large cabbagelike leaves. It exhales a disagreeable odor. Also called swamp cabbage.

WordNet 3.0

1. n. deciduous perennial low-growing fetid swamp plant of eastern North America having minute flowers enclosed in a mottled greenish or purple cowl-shaped spathe
2. n. clump-forming deciduous perennial swamp plant of western North America similar to Symplocarpus foetidus but having a yellow spathe