North America Native Plant

Shredding Suncup

Botanical name: Camissonia boothii decorticans

USDA symbol: CABOD

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Camissonia boothii (Douglas ex Lehm.) P.H. Raven var. decorticans (Hook. & Arn.) Cronquist (CABOD3)  âš˜  Camissonia boothii (Douglas ex Lehm.) P.H. Raven ssp. rutila (Davidson) Munz (CABOR)  âš˜  Gaura decorticans Hook. & Arn. (GADE4)  âš˜  Oenothera boothii Douglas ex Lehm. ssp. decorticans (Hook. & Arn.) Munz (OEBOD)  âš˜  Oenothera boothii Douglas ex Lehm. ssp. rutila (Davidson) Munz (OEBOR)  âš˜  Oenothera decorticans (Hook. & Arn.) Greene (OEDE5)  âš˜  Oenothera decorticans (Hook. & Arn.) Greene var. rutila (Davidson) Munz (OEDER)   

Shredding Suncup: A Delightful Desert Annual for Southwestern Gardens Meet the charming shredding suncup (Camissonia boothii decorticans), a delightful little wildflower that brings sunny yellow blooms to the desert landscapes of the American Southwest. This native annual might not be the showiest plant in your garden, but it has a ...

Shredding Suncup: A Delightful Desert Annual for Southwestern Gardens

Meet the charming shredding suncup (Camissonia boothii decorticans), a delightful little wildflower that brings sunny yellow blooms to the desert landscapes of the American Southwest. This native annual might not be the showiest plant in your garden, but it has a quiet charm that makes it a wonderful addition to naturalized areas and wildflower gardens.

What Makes Shredding Suncup Special?

The shredding suncup is a true native American, naturally occurring in Arizona and California. As an annual forb in the evening primrose family, this herbaceous plant completes its entire life cycle in a single growing season, making it perfect for gardeners who enjoy the changing dynamics of their landscape throughout the year.

This plant goes by quite a few scientific names in botanical literature, having been reclassified several times over the years. You might see it listed as Oenothera decorticans or Gaura decorticans in older references, but Camissonia boothii decorticans is the current accepted name.

Garden Design and Landscape Role

Shredding suncup works beautifully in several garden settings:

  • Wildflower meadows and naturalized areas
  • Desert and xerophytic gardens
  • Native plant landscapes
  • Low-maintenance ground cover areas

As a low-growing forb, this plant creates texture and seasonal interest without overwhelming other plants. Its modest size makes it an excellent companion plant for larger desert shrubs and cacti.

Growing Conditions and Care

Like most desert natives, shredding suncup is adapted to challenging conditions and typically thrives with minimal intervention. While specific growing requirements for this subspecies aren’t well-documented, plants in the Camissonia genus generally prefer:

  • Well-draining, sandy or rocky soils
  • Full sun exposure
  • Low to moderate water requirements
  • Hot, dry summer conditions

Being an annual, shredding suncup will complete its life cycle within one growing season, setting seed for the following year’s generation.

Benefits for Wildlife and Pollinators

While specific pollinator relationships aren’t well-documented for this particular subspecies, plants in the evening primrose family typically attract a variety of native pollinators, including small native bees, moths, and other beneficial insects. Native annuals like shredding suncup play important ecological roles in supporting local wildlife populations.

Considerations for Your Garden

Shredding suncup is an excellent choice for gardeners in Arizona and California who want to support native plant communities. However, keep in mind that detailed cultivation information is limited due to this plant’s specialized nature and relatively narrow distribution.

If you’re interested in growing shredding suncup, look for seeds from reputable native plant sources that specifically serve the Southwest region. Since it’s an annual, you’ll want to allow some plants to go to seed naturally to ensure future generations in your garden.

This native gem might be modest in stature, but it represents the resilient beauty of American desert flora. For gardeners passionate about authentic native landscaping in the Southwest, shredding suncup offers a chance to grow something truly special and regionally appropriate.

Shredding Suncup

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Myrtales

Family

Onagraceae Juss. - Evening Primrose family

Genus

Camissonia Link - suncup

Species

Camissonia boothii (Douglas ex Lehm.) P.H. Raven - Booth's evening primrose

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA