• A view of the cinder desert

    Haleakalā

    National Park Hawai'i

There are park alerts in effect.
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  • O`heo Stream and Pools Closed

    The O`heo stream, located along the Pipiwai Trail, remains closed due to high water and damaged stream monitoring equipment. Visitors are advised to abide by posted “stream closed” signs and the direction of park staff.

  • For your safety

    The Summit and Kīpahulu Districts are remote. An ambulance can take up to 45 minutes to arrive at either district from the nearest town. People with respiratory or other medical conditions should also be aware that the summit of Haleakalā is at 10,000 ft.

  • Drive cautiously - Endangered birds land on roadway

    Nēnē (Hawaiian geese) are nesting in the park and may land on or frequent park roads and parking lots. Drivers are reminded to drive at the posted speed limits and exercise caution.

Haleakala Silverswords

Juvenile silverswords
Haleakala silverswords ('ahinahina), along a park trail. These individuals are not blooming yet.
NPS photo
 
Silversword in bloom

Haleakala silversword in full bloom.

NPS Photo

The silvery hairs, fleshy leaves, and low-growing rosette form of the Haleakala silversword (Argyroxiphium sandwicense subsp. macrocephalum) allow it to survive in hot, dry climates like the aeolian desert cinder slopes of the crater. Silverswords live between 3 and 90 years or more. They flower once, sending up a spectacular flowering stalk, and then die soon afterward, scattering drying seeds to the wind.

Delicate silverswords ('ahinahina), once ripped up and taken home by visitors as souvenirs, now depend on management efforts for survival. Park staff fence silversword-munching ungulates out, destroy non-native plants that would crowd out silverswords, and educate park visitors to stay on trails to avoid stepping on fragile silversword seedlings and root systems.

 
Silversword seed collection

Park biotech Lindsay Moore collects seeds from a flowering Haleakala silversword for propagation. Juvenile silverswords grown in park greenhouses will be outplanted to supplement wild populations.

NPS Photo

Climate change may now present a new threat to these charismatic plants. Hotter temperatures and lower rainfall may threaten even the hardy silversword. Researchers with the University of Hawai'i are actively working with park staff to evaluate the effects of drought conditions on silverswords, and preserve these unique plants for generations to come.

Did You Know?

Did You Know?

The peak of Haleakalā volcano, at 10,023 feet (3055 m) above sea level is the highest point on Maui, the third-highest point in the state and may be the "peak" of your experience at Haleakalā National Park.