SafePlants

Brighamia insignis: The Curious Cabbage on a Stick

Brighamia insignis, a truly unique member of the Hawaiian flora, goes by several common names, reflecting its unusual appearance. It is often referred to as &#332lulu or Alula in Hawaiian, and colloquially as the vulcan palm or, most descriptively, cabbage on a stick or cabbage on a baseball bat.

Considerations for Pets

• This plant has succulent stems, which might be attractive to some animals.

Nomenclature and Taxonomy

• Scientific Name: Brighamia insignis A. Gray
• Family: Campanulaceae (Bellflower Family)
• Synonyms: Brighamia citrina

Distribution and Habitat

• Brighamia insignis is endemic to the Hawaiian island of Kauai.
• Currently, it grows naturally on only a few sea cliffs.

Conservation Status

• This species is listed as "Critically Endangered."
• The wild population is estimated to be around 50 plants.

Morphology and Growth Habits

• It has succulent, generally stout, and unbranched stems that typically reach 1-2 meters in height.
• The plant is described as having a thickened main trunk resembling a "stick" or "baseball bat," topped with a cluster of leaves that give it the "cabbage" appearance.

Cultivation

• This plant prefers locations with partial shade.
• The optimal temperature range for growth is 18 to 25 degrees Celsius.
• It needs to be watered regularly.

Quirky Facts

• Its flowers are described as having a honeysuckle perfume.
• The plant’s unique appearance has led to endearingly odd nicknames like "cabbage on a stick" and "cabbage on a baseball bat."

Further Information

• More information can be found on the RHS (Royal Horticultural Society) website.
• The United States Botanic Garden in Washington, D.C., features this plant.
• The San Diego Zoo's Hawaiian Native Plant Exhibit displays Brighamia insignis.