• Double O Arch

    Arches

    National Park Utah

Slenderleaf Globemallow (Rimrock Globemallow; Scaly Globemallow)

Sphaeralcea leptophylla

Sphaeralcea leptophylla

Family: Malvaceae – Mallow Family

Sphaeralcea is the only genus from this family represented at Arches National Park; Perennial herbs from taproots or rhizomes; usually hairy; mucilaginous stems; 7.9” to 1.8' (2 to 5.5 dm) tall

Leaves: alternate; simple; lobed; entire; 0.4” to 1.28” (10 to 32 mm) long

Flowers: 5 orange or reddish distinct petals; 5 united lobed sepals; styles 5 to numerous; numerous stamens joined by their stalks into a tube; several pistils united in a ring; bisexual; flowers radially symmetrical; petals 0.32” to 0.48” (8 to 12 mm) long

Pollinators: bees; sometimes bees of the genus Diadaysia can be found curled up in the flowers in the morning

Fruits: schizocarp

Blooms in Arches National Park: April, May, June, July, August, September, October, November

Habitat in Arches National Park: desert shrub and pinyon-juniper communities; can be found in the Morrison Formation, Entrada Sandstone, Carmel Formation, Navajo Sandstone, Kayenta Formation, Chinle Formation, Moenkopi Formation and Cutler Formation

Location seen: widespread

Other: The genus name, “Sphaeralcea”, is from “sphaira” which means “globe” and “alcea” which is the name of a related genus (hollyhock), thus referring to the spherical fruits. The species name, “leptophylla”, means “with slender leaves” describing the lobes on this plant's leaves.

Cotton and okra (Hibiscus) are in this family.

Did You Know?

Pine Tree Arch

There are over 2,000 cataloged arches in Arches National Park. In order to be considered an arch, an opening must measure at least three feet (in any direction).