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Castle Hot Springs Rd - Sue Smith

Yavapai County Native & Naturalized Plants

Eschscholzia californica ssp. mexicana - Mexican gold poppy

Synonyms: Eschscholzia mexicana
Plant Form: Forb or Subshrub

Family: Papaveraceae

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Castle Hot Springs Rd
Sue Smith
Castle Hot Springs Rd
Sue Smith
Castle Hot Springs Rd
Sue Smith
Plant - summer
Castle Hot Springs Rd
Sue Smith
Forb Plant Description

Origin: Native   Life Cycle: Annual   Similar Species: Eschscholzia californica ssp. californica
General Desc: Fern-like plant with many orange or yellow cup-shaped flowers. Flowers remain open only during full sunlight, closing at night and when windy or cloudy. Blooms heavily in the desert after heavy winter rains.
Identification notes: Annual; leaves mostly basal, few on stems. Stems erect, to 14 inches tall. Flower base has 2 distinct rims (inner membranous and erect, outer spreading). Missing the pink flower receptacle of E. californica ssp. californica
Height: To 14 inches


Habitat Description: Slopes, plains, foothills and mesas.
Plant Communities: Desert Scrub, Interior Chaparral, Semidesert Grasslands
Elevation: Below 4500 feet

Flower Characteristics

Color: Orange or yellow     Shape: Regular not in clusters     Tubular: N     Flowering Period: Feb - May
Description: Flowers have 4 petals forming a cup. They are to 1-1/2 inches wide on a single stalk, with numerous flowers per plant.

Leaf and Stem Characteristics

Leaf Color: Bluish-green     Leaf Type: Simple     Leaf Shape: Pinnatifid     Leaf Margin: Dissected     Leaf Attachment: Basal and alternate     Leaves Clasp: N
Hairs: No     Spines: N
Leaf Description: Fern-like basal leaves are up to 1-1/2 inches long, stem leaves similar, but few.

Fruit and Seed Characteristics

Fruit Color: Green to brown   
Fruit Type: Capsule
Fruit Notes: Slender seed capsules to 4 inches long and longitudinally ridged.
Seed Notes: Seeds dark brown with veined surfaces.

  Arizona Cooperative Extension
Yavapai County
840 Rodeo Dr #C
Prescott, AZ 86305
(928) 445-6590
Version 8.0  
Last Updated: Nov 21, 2021
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