Plant Image
Flower head
Highlands Center for Natural History - SS

Yavapai County Native & Naturalized Plants

Cosmos parviflorus - southwestern cosmos

Synonyms: Coreopsis parviflora
Plant Form: Forb

Family: Asteraceae

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Flower head
Willow Dells
Leaf attachment
Willow Dells
Willow Dells
Plant - summer
Willow Dells
Forb Plant Description

Origin: Native   Life Cycle: Annual
General Desc: Southwestern cosmos grows 2 to 3 feet tall and is branched several times in the upper half, with a single flower head at the end of each slender, bare stem. The plants have a sparse, airy appearance.
Height: To 3 feet


Habitat Description: Clearings in ponderosa pine forests and hillsides.
Plant Communities: Pinyon Juniper Woodland, Montane Conifer Forest, Riparian, Disturbed Areas
Elevation: 4000 - 9000 feet

Flower Characteristics

Color: Pink     Shape: Daisy or Dandelion-like not in clusters     Tubular: N     Flowering Period: Jul - Oct
Description: The flowers have 8 pale pink ray flowers, bright yellow disk flowers and 8 long, narrow sepals. The flower heads are about 1-1/4 inches across.

Leaf and Stem Characteristics

Leaf Color: Green     Leaf Type: Compound     Leaf Shape: Narrow     Leaf Margin: Smooth     Leaf Attachment: Opposite     Leaves Clasp: N
Hairs: No     Spines: N
Leaf Description: The leaves are very finely divided 2 or 3 times into threadlike segments. They are to 3 inches long.

Fruit and Seed Characteristics

Fruit Color: Blackish   
Fruit Type: Achene
Seed Notes: Seeds are slender with 2 barbs at one end which snag onto passing animals or people for dispersal.

  Arizona Cooperative Extension
Yavapai County
840 Rodeo Dr #C
Prescott, AZ 86305
(928) 445-6590
Version 3.1  
Last Updated: June 15, 2013  
Content Questions/Comments: Email Jeff Schalau  
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