• South Window

    Arches

    National Park Utah

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Pallid Milkweed

Asclepias cryptoceras

Asclepias cryptoceras

Family: Asclepiadaceae - Milkweed Family

Perennial herbs; 3.9” to 1' (1 to 3 dm) tall

Leaves: opposite; simple; broad leaves 0.8” to 4.6” (2 to 11.5 cm) long, 0.6” to 4.4” (1.5 to 11 cm) wide; no hairs

Flowers: large greenish-yellow umbellate flowers; petals curled backward; 5 petals; rose colored 5 lobed crown (corona) present between the corolla and the stamens; lobes 0.4” to 0.6” (10 to 15 mm) long; flowers perfect; 5 sepals; 5 stamens; 2 carpels

Pollinators: other species of Asclepias are pollinated by insects (specifically bees, moths and butterflies)

Fruits: 2 follicles

Blooms in Arches National Park: April, May

Habitat in Arches National Park: desert shrub and pinyon-juniper communities

Location seen: Delicate Arch Viewpoint trail

Other: The genus name, “Asclepias”, refers to “Asklepios”, a Greek physician and an authority on the medicinal use of plants and who according to Greek Myth could bring the dead to life. Hades fearing a loss of employment, convinced his brother Zeus to kill Asklepios with a bolt of lightning. The species name, “cryptoceras”, is from “cryptos” which means "hidden" and “keras” which means "horn or antlers".

Did You Know?

Mule Deer

Feeding wildlife can be very detrimental to their health. It can destroy their natural ability to find food and create a dependency on humans. Animals that develop such a dependency often become aggressive toward humans and must be relocated or even killed.