Alula AKA “cabbage on a stick”

Alula

AKA “cabbage on a stick”
Type
plants

Plants

Area
North, Central, and South America

The Americas

Endangered Status

Endangered

facts

Size
usually 3 to 6
feet tall
alula
Habitat
island cliffs
island cliffs

description

Extinct in the Wild

For one thing, plants that aren’t native to Hawaii were a problem. After people planted them, these invasive plants grew faster and took over the habitat. People brought goats and pigs to the islands, too. They eat plants, and that was bad news for the alula. These are problems we must solve before reintroducing alula to its island home.

Pollinator Problem

The biggest problem for the alula was pollination. Its yellow petals are fused to form a six-inch tube. To make a seed, pollen must get all the way to the base of the tall flower-tube. The only long-tongued pollinator that could get it there was a single type of moth that is now extinct. These flowers don’t self-pollinate, so no moth pollinator meant no seeds. No seeds meant no seedling plants. Recently, the last alula in its native habitat died.

Cliffhanger

Today, this unusual plant owes its survival to some dedicated botanists. When they saw the plants disappearing, they scrambled down steep cliffs to gather pollen and hand-pollinate the last remaining plants. Later, they returned to collect seeds. They grew some of the seeds in a greenhouse and shared some with other botanic gardens around the world. Today, you can see alula plants in botanic gardens—and even buy seeds to grow one of your own.