SafePlants

Eke Silversword (Argyroxiphium caliginis)

The Eke Silversword, scientifically known as Argyroxiphium caliginis, is a fascinating flowering plant native to Hawaii. Often referred to simply as the 'Eke silversword, this perennial shrub belongs to the genus Argyroxiphium.

Taxonomy and Nomenclature

• Scientific Name: Argyroxiphium caliginis Forbes
• Common Name: Eke Silversword
• Family: Asteraceae (Sunflower Family)

Distribution and Habitat

• The Eke Silversword is endemic to Hawaii, specifically found on Mount Eke in West Maui.
• It thrives in the wet and boggy environments, often above 7,000 feet.
• A significant population is located within Eke Crater.

Morphology and Growth Habits

• The Eke Silversword is characterized as a rosette plant.
• It is a perennial shrub, meaning it lives for more than two years.
• Its leaves are symmetrical, inwardly-curving, and have a woolly, reflective surface.

Considerations for Pets

• The text mentions "woolly leaves". While not inherently dangerous, ingestion of large quantities of woolly or fibrous plant material may cause digestive upset in some animals.

Ecological Role and Conservation

• Feral animals, particularly rooting feral pigs, have historically posed a threat to the Eke Silversword population.
• Conservation efforts are in place to protect the main population within Eke Crater.
• The Eke Silversword is considered an endangered species.

Known Pests and Problems

• The text notes that there are "Known Pests and Problems" for the plant, but does not detail these.

Related Species

• Related species include the Ka'u silversword (Argyroxiphium kauense) and the Kai silversword (Argyroxiphium X kai).

Further Information

• Additional information and images can be found at Plants of Hawaii (Forest and Kim Starr).
• ARKive is a resource for photos and facts.
• Discover Life provides information about the biology, natural history, ecology, identification, and distribution.