Species Detail Forb

Flower head		Yavapai County Native & Naturalized Plants Psilostrophe cooperi - whitestem paperflower Synonyms: Riddellia cooperi Other Common Names: Paper daisy, Cooper's paper daisy Plant Form: Forb or Subshrub Family: Asteraceae
Flower head


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Flower heads Max Licher @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)	Bracts Max Licher @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)	Max Licher @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)

Forb Plant Description

Origin: Native Life Cycle: Perennial
General Desc: This nearly round plant makes a brilliant yellow globe.
Identification notes: Plants shrubby; stems and leaves densely white-woolly, distinguishes this species from other Psilostrophe species.
Height: 6 to 24 inches

Habitat

Habitat Description: Dry slopes and washes of the deserts and plains. Native to the Mojave and Sonoran deserts.
Plant Communities: Desert Scrub, Interior Chaparral, Semidesert Grasslands, Pinyon Juniper Woodland, Montane Conifer Forest
Elevation: 300 - 8300 feet

Flower Characteristics

Color: Yellow Shape: Daisy or dandelion-like not in clusters Tubular: N Flowering Period: Apr - Oct
Description: This is a ray flower with 3 to 6 non-overlapping petals borne singly on a stalk. Each petal has 3 shallow lobes at the end.

Leaf and Stem Characteristics

Leaf Color: Grayish-green Leaf Type: Simple Leaf Shape: Narrow Leaf Margin: Smooth Leaf Attachment: Alternate Leaves Clasp: N
Hairs: Leaves and stems Spines: N
Leaf Description: The stems are openly branched, erect, and woolly-white. The leaves are 1 to 2-1/2 inches long and very narrow.

Fruit and Seed Characteristics

Fruit Type: Achene
Fruit Notes: Cylindric, ribbed, smooth or sparsely glandular.


	Arizona Cooperative Extension Yavapai County 840 Rodeo Dr #C Prescott, AZ 86305 (928) 445-6590	Version 8.0 http://cales.arizona.edu/yavapaiplants/SpeciesDetailForb.php Last Updated: Dec 13, 2022 Content Questions/Comments: Email Matt Halldorson Legal Disclaimer