Amorphophallus

Amorphophallus is a genus of about 200 species of flowering plants in the arum family, Araceae. Native to tropical regions of Africa, Asia, and some Pacific islands, the plants are typically herbaceous perennials that grow from thick tubers or rhizomes. Most species produce a large, palmately divided leaf that can resemble a small tree, followed by a solitary inflorescence.

The inflorescence consists of a spadix enclosed by a bract-like spathe. Flowers are often hidden inside, and many species emit a strong odor comparable to rotting flesh to attract carrion beetles and flies for pollination. Flowering is sporadic and short-lived, and many Amorphophallus plants enter a dormancy after blooming, during which a new leaf develops and the cycle may take several years to repeat.

Ecology and cultivation: In their native habitats, pollination relies on specific insect visitors; in cultivation, hand pollination can be used to set fruit and seeds. They prefer warm, humid tropical conditions with bright, indirect light and well-draining soil. A dormancy period is typical in cultivation, during which growth slows or stops.

Uses and safety: Several species produce edible tubers or starchy corms, notably Amorphophallus konjac (konjac) and Amorphophallus paeoniifolius (elephant yam), which are important starch sources in parts of Asia. Parts of some species contain calcium oxalate crystals and can irritate mucous membranes if consumed raw; processing reduces toxicity. Amorphophallus titanum, commonly known as the corpse flower, is the best known species for its exceptionally large inflorescence and spectacular blooming events, often cultivated in botanical gardens for public display.