Asteraceae Lygodesmia grandiflora

Multiple images of pale pink flowers with five petals.

Lygodesmia grandiflora var. arizonica

Family: Asteraceae (A Utah Flora - Compositae) - Sunflower Family

Perennial herbs; milky juice; stems 2.4” to 1.6' (0.6 to 5 dm) tall

Leaves: alternate or mainly basal and still alternate; simple; can have hairs; 0.2” to 4” (0.5 to 10 cm) long or more, 0.04” to 0.2” (1 to 5 mm) wide

Flowers: flowers are all raylike; 5 to 10 rays are pink, purple, or rarely white; 0.8” to 1.6” (2 to 4 cm) long

Pollinators: insects

Fruits: achene – 1 seeded with hard shell

Blooms in Arches National Park: May, June, July

Habitat in Arches National Park: mainly in sand in desert shrub, grassland and pinyon-juniper communities

Location seen: park road near Petrified Dunes, park road mile 7, west boundary of park

Other: The genus name, “Lygodesmia”, is from the Greek “lygodes” which means “willow-like” and "desmos" which means “band, chain, or bundle”. The species name, “grandiflora” , means “large flower” and the variety name, "arizonica" , means “of or from Arizona ” relating to its range.

This family is the most advanced and complex of the dicots. The family is rich in oils and resins and is found in every part of the world, but is infrequent in the tropical rainforest. Aquatic or semi-aquatic species are also uncommon.

Last updated: December 30, 2022

Park footer

Contact Info

Mailing Address:

PO Box 907
Moab, UT 84532


435 719-2299

Contact Us