Contact | Blog | Project Noah Facebook | Project Noah Twitter

A global citizen science platform
to discover, share and identify wildlife

Join Project Noah!

Haleakalā Silversword

Argyroxiphium sandwicense subsp. macrocephalum


A rare plant, part of the family Asteraceae family. The silversword in general is referred to as ʻāhinahina in Hawaiian, meaning "very grey" At senescence, which often occurs when the plant reaches a diameter of approximately 1.6 ft, the plant produces a tall stalk of maroon ray flowers which resemble the sunflower in just a few weeks. Flowering usually occurs from July through October


The Haleakalā silversword is found on the island of Maui at an elevation of 6,900 to 9,800 ft on the dormant Haleakalā volcano — on the summit depression, the rim summits, and surrounding slopes — in Haleakalā National Park.

Species ID Suggestions

Sign in to suggest organism ID


Spotted by

Lat: 20.71, Long: -156.26

Spotted on May 3, 2012
Submitted on Nov 9, 2012

Related Spottings

Silversword plant Mauna Kea silversword Haleakala Silversword Silversword Plant

Nearby Spottings

Ladybug Silversword plant Northern Cardinal Pacific golden-plover