• Double O Arch

    Arches

    National Park Utah

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?

Desert Bighorn Sheep

Once feared of becoming extinct, desert bighorn sheep are making a tentative comeback in southeast Utah due to reintroduction efforts by the National Park Service. There are roughly 50 sheep in Arches, and animals are often sighted near the visitor center. More...