• Double O Arch

    Arches

    National Park Utah

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Dogbane (Indian Hemp)

Apocynum cannabinum

Apocynum cannabinum

Family: Apocynaceae - Dogbane Family

Perennial herbs; stems 11.8” to 3' (3 to 9 dm) tall

Leaves: opposite or whorled; 0.8” to 5.6” (2 to 14 cm) long, 0.4” to 2.8” (1 to 7 cm) wide; can have hairs

Flowers: flowers in cymes; 5 white to greenish petals; corolla 0.12” to 0.24” (3 to 6 mm) long; 5 sepals

Pollinators: moths and butterflies

Fruits: 2 follicles

Blooms in Arches National Park: May, June

Habitat in Arches National Park: riparian areas near Wolfe Ranch

Location seen: Roadsides, riparian, and disturbed areas

Other: The genus name “Apocynum” is from the Greek “apo” which means "away from" and “kyon” or “kunos” which means "dog". This is in reference to the plant's ancient use as a dog poison. The species name, “cannabinum” means “hemp-like”.

Did You Know?

Collared Lizard

Lizards, including the colorful collared lizard, are one of the most frequently seen animals at Arches. When not chasing flies or basking in the sun, they are often seen doing what appears to be push-ups. This odd dance might enhance their stereoscopic vision, helping them see what's looking back at them.