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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.

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Crossosoma bigelovii

Crossosoma bigelovii S. Watson

Ragged Rockflower, Crossosoma

Crossosomataceae (Crossosoma Family)

Synonym(s):

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

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Plant Characteristics

Duration: Perennial
Habit: Shrub
Leaf Retention: Deciduous
Fruit Type: Follicle
Size Notes: Up to about 6 feet tall.

Bloom Information

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

Distribution

USA: AZ , CA , NV
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.

Propagation

Description: Propagation by seed is possible.
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

Web Reference

Webref 30 - Calflora (2018) Calflora
Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

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

Metadata

Record Modified: 2023-03-22
Research By: TWC Staff

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