Terpano
Original illustration

Silver Rosettes on a Volcanic Summit

Haleakalā Crater, Maui, Hawaiʻi, USA

Silver Rosettes on a Volcanic Summit — original illustration of Haleakalā Crater, Maui, Hawaiʻi, USA

Silver Rosettes on a Volcanic Summit is an original illustration set in Haleakalā Crater, Maui, Hawaiʻi, USA. It lies in the tropics, where the climate is tundra — too cold for trees.

Dozens of compact silver-green rosettes grow widely spaced across red, black, and ochre cinder inside a vast volcanic summit basin. Their narrow fleshy leaves shine with dense pale hairs, a few plants raise tall maroon flower stalks, and hard sunlight alternates with cold cloud beneath steep eroded cinder cones.

Why do these plants form silver rosettes on an exposed tropical volcano?

Above the trade-wind cloud layer, porous cinder holds little water while intense ultraviolet light, daytime heat, freezing nights, and strong wind stress exposed leaves. Fleshy tissues store moisture, a low spherical rosette reduces wind exposure, and reflective hairs limit solar heating while guiding fog droplets toward the base. This rare combination evolved on Haleakalā, so silver foliage, sparse alpine desert, colorful cinder cones, and isolated volcanic height locate the scene on Maui.

Terpano is a free daily geography puzzle. You study one original illustration, place a pin on a borderless terrain map, and see how close you were. There is no account and no sign-up; progress stays in your own browser. It plays in 11 languages.

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