• Double O Arch

    Arches

    National Park Utah

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  • Extreme Fire Danger

    Due to extremely dry conditions, fire restrictions are in effect in all national park units in Southeast Utah. More »

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, though their shy nature keeps them well-hidden from most visitors. More...