How the corpse flower came to be so weird

March 17, 2026

9 min read

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How the corpse flower came to be so weird

Evolutionary studies make sense of the world’s strangest plant

By Jacob S. Suissa edited by Kate Wong

Visitors to a botanical garden in Basel, Switzerland, attend the blooming of a corpse plant.

Sebastien Bozon/AFP/Getty Images

The blooming of a titan arum, or corpse plant, is a spectacle like none other in the plant world. A pale spike resembling the decaying finger of a buried giant pushes up from the earth until it towers 10 feet above the ground. A massive petal-like structure unfurls to form a blood-red cape around the finger. The smell of rotting flesh fills the air. Then, some 36 hours later, the bloom is over. Seven years or more may pass before it happens again.

With its putrid stench, alien appearance and peculiar habits, the corpse plant disgusts and fascinates in equal measure. At any given time, botanical gardens, arboretums and nurseries around the world are making plans to share news about their specimen. They don’t know exactly when it will bloom—the titan arum works on no one’s schedule but its own—but they need to be ready when it does: this species, Amorphophallus titanum, often brings in more traffic to botanical institutions than any other species in their collections.

It’s not just the general public that finds the titan arum so captivating. Scientific interest in this monstrosity dates back to at least the late 1800s, when Italian botanists first formally described the species, which is endemic to the rainforests of western Sumatra. Researchers have been studying this floral phenomenon ever since.

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In my research as a plant evolutionary biologist, I mostly study members of an entirely different group of plants, the ferns. But I find myself drawn to the corpse flower because its mix of features suggests that it has an especially interesting evolutionary history. Recent investigations have illuminated how the corpse plant acquired its bizarre traits. The findings not only help to explain why the plant is the way it is but also offer fascinating examples of little-known factors that can significantly influence evolutionary outcomes. Put simply, the corpse flower can teach us about how evolution works.

To appreciate the corpse plant, it helps to understand its structure. When it’s not in bloom—the vast majority of the time—the plant basically consists of a giant tuberlike stem, which sits underground and stores energy in the form of starch, and a single massive leaf that grows aboveground and superficially resembles a small tree. The leaf lasts for about a year, producing food through photosynthesis and sending it to the tuber for safekeeping. When the leaf dies, the tuber goes dormant for a few months before sending up another leaf to convert sunlight into food.

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Once the tuber is big enough to fuel a more ambitious undertaking, the corpse plant can flower. It may be 10 years old before it can manage this feat. When it’s time to bloom, the plant produces a structure called an inflorescence instead of the usual leaf. This inflorescence is the bloom. It’s composed of two primary parts: the fingerlike spadix and the capelike spathe. Although it might seem unfamiliar, this floral structure is similar to that of the peace lily (Spathiphyllum) in your doctor’s waiting room—but scaled up and ready for Halloween.

People tend to think of the spadix and spathe as the corpse plant’s flower. But the actual flowers are dinky little structures at the base of the spadix—so reduced that they generally lack all the traditional floral organs, such as petals and supportive sepals. These flowers are also unisexual, with pollen-bearing flowers higher up on the spadix and seed-producing flowers lower down. The pollen-bearing flowers contain only a few pollen-making organs, and the seed-bearing flowers produce a single, tiny fruit. Both flower types are stripped down to their essential parts.

The corpse plant is an extraordinary example of evolutionary mimicry. Most of the flowering plants that are familiar to us have colorful, sweet-smelling blooms to attract bees, butterflies, birds, and other pollinators that help them reproduce. The corpse plant has a different strategy. It has evolved to look and smell like decaying meat so that it appeals to a different group of pollinators: the flies, beetles, and other insects that feed on carrion. The spathe and spadix have ripples, grooves, bumps and discolorations that are strikingly similar to those on the surface of rotting flesh. The stench takes the disguise to