Host an Event Volunteer Join Tickets

Support the plant database you love!


Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

Enter a Plant Name:
Or choose a plant family:

Crossosoma bigelovii

Crossosoma bigelovii S. Watson

Crossosoma, Ragged Rockflower

Crossosomataceae (Crossosoma Family)


USDA Symbol: CRBI2

USDA Native Status: L48 (N)

Ragged rockflower or crossosoma is a much-branched, spreading desert shrub, 3-6 ft. tall, with rigid, spiny branchlets and gray-green leaves which may fall off during drought stress. Flowers are white to pinkish and apple blossom-like.


From the Image Gallery

No images of this plant

Plant Characteristics

Duration: Perennial
Habit: Shrub
Size Class: 6-12 ft.

Bloom Information

Bloom Color: White , Pink
Bloom Time: Feb , Mar , Apr


Native Distribution: Deserts of s. & w. AZ, s.e. CA & n.w. Mex.
Native Habitat: Dry, rocky slopes & cliffs below 3000 ft.

Growing Conditions

Light Requirement: Sun
Soil Moisture: Dry
Soil Description: Rocky soils.
Conditions Comments: Not Available


Description: Propagation by seed is possible.
Seed Collection: Not Available
Seed Treatment: No pretreament is required.
Commercially Avail: yes

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Tohono Chul Park, Inc. - Tucson, AZ

Additional resources

USDA: Find Crossosoma bigelovii in USDA Plants
FNA: Find Crossosoma bigelovii in the Flora of North America (if available)
Google: Search Google for Crossosoma bigelovii


Record Modified: 2007-01-01
Research By: TWC Staff

Go back