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PlantFiles: Paper Flower
Psilostrophe cooperi

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Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Psilostrophe (sy-loh-STROH-fee) (Info)
Species: cooperi (koo-PER-ee) (Info)

Synonym:Riddellia cooperi

One member has or wants this plant for trade.

Category:
Groundcovers
Perennials
Shrubs

Height:
6-12 in. (15-30 cm)
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)

Spacing:
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)

Hardiness:
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)
USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:
Full Sun
Sun to Partial Shade
Light Shade

Danger:
Unknown - Tell us

Bloom Color:
Bright Yellow

Bloom Time:
Mid Spring
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall
Late Fall/Early Winter
Blooms repeatedly

Foliage:
Velvet/Fuzzy-Textured

Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
Unknown - Tell us

Patent Information:
Non-patented

Propagation Methods:
From seed; direct sow outdoors in fall

Seed Collecting:
Bag seedheads to capture ripening seed
Allow seedheads to dry on plants; remove and collect seeds

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By Xenomorf
Thumbnail #1 of Psilostrophe cooperi by Xenomorf

By Xenomorf
Thumbnail #2 of Psilostrophe cooperi by Xenomorf

By Xenomorf
Thumbnail #3 of Psilostrophe cooperi by Xenomorf

By Xenomorf
Thumbnail #4 of Psilostrophe cooperi by Xenomorf

By Xenomorf
Thumbnail #5 of Psilostrophe cooperi by Xenomorf

By palmbob
Thumbnail #6 of Psilostrophe cooperi by palmbob

By palmbob
Thumbnail #7 of Psilostrophe cooperi by palmbob

There are a total of 9 photos.
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Profile:

1 positive
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive Xenomorf On Feb 15, 2005, Xenomorf from Valley of the Sun, AZ (Zone 9b) wrote:

I've also found this growing wild near Tuscon, AZ vicinity.

Neutral melody On Feb 14, 2005, melody from Benton, KY (Zone 7a) wrote:

Many well-branched leafy stems, wooly at the base, forming a nearly roundmplant covered with loose wool and bearing a yellow flower head at the end of each branchlet.

Found on the deserts and plains if southeastern CA ,southwest UT, southwestern NM and south to Mexico.

The rays of the flower remain on the plant becoming dry and papery.It is poisonous to livestock.

Regional...

This plant has been said to grow in the following regions:

Phoenix, Arizona
Tucson, Arizona
Las Vegas, Nevada
Columbus, New Mexico



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