Psilostrophe cooperi

Psilostrophe cooperi

Paperflower

Previous scientific name(s): Riddellia cooperi

Small shrub-like flower growing 1 to 2 feet high. Drought resistant perennial found in arroyos, desert plains, and hillsides from 2,000 to 5,000 ft. elevation. It likes full sun and well-drained soils, and has brilliant 1-inch yellow flowers that dry and become much like paper, making it a great plant for landscaping. It is poisonous to livestock, and is usually avoided.

Varieties: 

Species Attributes

Height: 
- 2 
feet
Native or Introduced: 
Native
Precipitation: 
in.
Sun & Shade Tolerance: 
Full Sun
Elevation: 
2,000 
- 5,000 
ft.

Soil Texture

Coarse: 
Best
Moderately Coarse: 
Best
Medium: 
Average
Moderately Fine: 
Marginal
Fine: 
Marginal

Soil pH

Acidic: 
Not Adapted
Neutral: 
Best
Basic: 
Average
Seeding Rate: 
PLS lbs/Acre
Pure Seed per Bushel: 
32.70 lbs.
Seeds per Pound: 
491,200
Germination Time: 
Days
Mycorrhizal Dependent: 
Yes
Bloom Color: 
Yellow
Blooming Season: 
Spring
Fall