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Arches National ParkSego Lily
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Arches National Park
Siberian Elm
Ulmus pumila

Ulmus pumila

Family: Ulmaceae – Elm Family

Trees to 6.9' (25 m) tall or more

Leaves: alternate; simple; 1” to 3” (2.5 to 7.5 cm) long

Flowers: 0 petals; 4 to 9 sepals; 8 stamens; unisexual; greenish flowers borne in clusters

Pollinators: wind

Fruits: winged samara

Blooms in Arches National Park: March, April

Habitat in Arches National Park: cultivated shade tree that grows rapidly and escaped

Location seen: around Visitor Center buildings

Other: The genus name, “Ulmus”, is the classical Latin name for “elm” and the species name, “pumila”, means “small or dwarf”.

This is a non-native plant.

Landscape Arch  

Did You Know?
Landscape Arch is the longest Arch in Arches National Park, measuring 306 feet from base to base. In 1991, a massive slab of rock fell from its underside, resulting in an even thinner ribbon of rock.

Last Updated: July 19, 2007 at 03:16 EST