Plant Image
Flowers
- JK


Yavapai County Native & Naturalized Plants

Parthenium incanum - mariola

Plant Form: Forb

Family: Asteraceae


   
 
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Leaf
JK
Plant - spring
JK
Forb Plant Description

Origin: Native   Life Cycle: Perennial
General Desc: A compact sub-shrub or forb with intricate multi-branches. Contains some rubber compounds. Fragrant.
Identification notes: Only 1 species of Parthenium in Yavapai County. The genus characteristics are heads that eradiate, receptacles paleate; pappi wholly or partially of awns; phyllaries fall together.
Height: 2 feet


Habitat

Habitat Description: Dry gravelly slopes, rocky outcroppings and canyons. Limestone soils and openings in desert scrub.
Plant Communities: Desert Scrub, Interior Chaparral, Semidesert Grasslands, Pinyon Juniper Woodland
Elevation: 2500 - 6000 feet


Flower Characteristics

Color: Pale yellow to yellowish-white     Shape: Daisy or Dandelion-like in round clusters     Tubular: N     Flowering Period: Jun - Oct
Description: Inflorescence appears at the terminal ends of leafless stems in clusters 2 to 3 inches across. Flat topped composite heads with tiny ray and disc flowers resemble cauliflower. Flowers are about 1/4 inch wide. Ray flowers less than 1/8 inch long.


Leaf and Stem Characteristics

Leaf Color: Grayish-green     Leaf Type: Simple     Leaf Shape: Pinnatifid     Leaf Margin: Lobed     Leaf Attachment: Alternate     Leaves Clasp: N
Hairs: Leaves and stems     Spines: N
Leaf Description: Pinnately lobed and aromatic. 1 inch long by 1/2 inch wide.


Fruit and Seed Characteristics

Fruit Type: Achene


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