Asteraceae Chrysothamnus nauseosus

Bright yellow flowers clumped on the top of a woody stem.

Chrysothamnus nauseosus

Family: Asteraceae (A UtahFlora – Compositae) – Sunflower Family

Shrubs; 7.9” to 9.8' (2 to 30 dm) tall

Leaves: alternate; simple; entire; 0.24” to 4” (0.6 to 10 cm) long, 0.02” to 0.4” (0.5 to 10 mm) wide

Flowers: discoid; 2 to10 yellow disk flowers; flower head appears to be a single flower, but is composed of several flowers (a composite). Flowers are perfect, fertile; 0.24” to 0.48” (6 to 12 mm) long

Pollinators: insects

Fruits: achene – 1 seeded with hard shell

Blooms in ArchesNational Park: June, July, August, September, October, November

Habitat in ArchesNational Park: desert shrub and pinyon-juniper communities; thrives in alkali and heavy clay, or in sandy, gravelly soils

Location seen:CourthouseTowers, Windows, Fiery Furnace parking lot, SaltValley, park road mile 16, DevilsGarden, DevilsGarden campground

Other: The genus name, “Chrysothamnus”, is from the Greek “chrysos” meaning “golden” and “thamos” meaning “a shrub”. The species name, “nauseosus”, means “heavy-scented” referring to the smell of the leaves and the flowers.

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: January 21, 2022

Park footer

Contact Info

Mailing Address:

PO Box 907
Moab, UT 84532


435 719-2299

Contact Us