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Ridgetop tetramolopium

Tetramolopium filiforme

Also called Makua daisy

Ridgetop tetramolopium
Photo: David Eickhoff from Pearl City, Hawaii, USA, CC BY 2.0

Ridgetop tetramolopium is a tiny, rare shrub from Oahu's Waianae Range, growing no more than about 15 cm tall on ridges and cliffs. It is a federally endangered species and is not grown as a garden or houseplant, so care is mainly a matter of protecting wild populations.

Family
Asteraceae (Daisy family)
Grows as
Shrub
Light
Full sun
Water
Adapted to dry, exposed ridges; in cultivation, water sparingly and let the soil dry between waterings.
Soil
Free-draining, rocky or gritty substrate, similar to its cliff habitat.
Temperature
Tolerates cool mountain conditions; protect from frost.
How easy
Hard
Native range
Hawaiian Is. (Oʻahu)

About

Tetramolopium filiforme is a rare species of flowering plant in the family Asteraceae known by the common name ridgetop tetramolopium. It is endemic to Hawaii, where it is known only from the Waiʻanae Range on the island of Oahu. It is threatened by habitat degradation caused by feral goats and introduced species of plants. It is a federally listed endangered species of the United States.

This plant is a very small shrub growing only 15 centimeters in maximum height. It produces narrow leaves and inflorescences of up to 4 flower heads. It grows on mountain ridges and cliffs. It sometimes grows in rock cracks on steep cliffs.

Other Tetramolopium plants

Maui tetramolopium · Pamakani · Waianae Range tetramolopium · Awalua Ridge tetramolopium · Dune tetramolopium · Tetramolopium

Text excerpted from the Wikipedia article Tetramolopium filiforme by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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