Plant Image
Flower
- Sue Smith


Yavapai County Native & Naturalized Plants

Kallstroemia grandiflora - Arizona poppy

Other Common Names: orange caltrop, summer poppy
Plant Form: Forb or Subshrub

Family: Zygophyllaceae


   
 
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Flower
Sue Smith
Leaf
Sue Smith
Leaves
Sue Smith
Plant - summer
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Field of blooms
Sue Smith
Forb Plant Description

Origin: Native   Life Cycle: Annual
General Desc: A sprawling annual with orangish-yellow flowers on trailing or sometimes erect hairy stems. Its blooms are sometimes mistaken for the 4-petaled flowers of the spring-blooming California poppy, which is not related.
Identification notes: Annual, stems hairy and mostly trailing. Leaves opposite, pinnate, smooth or hairy underneath. Flowers orange, solitary on axillary stalks, petals to 2-1/2 inches long. Tiny black seeds are borne in slender beaked fruits, fruit beaks to 1/4 inch long.
Height: Trailing, 1 to 3-1/4 feet


Habitat

Habitat Description: Desert scrub and grasslands; along roads and sandy washes, flats, slopes, mesas, disturbed areas.
Plant Communities: Desert Scrub, Interior Chaparral, Semidesert Grasslands, Pinyon Juniper Woodland, Disturbed Areas
Elevation: Below 5000 feet


Flower Characteristics

Color: Orangish-yellow     Shape: Regular not in clusters     Tubular: N     Flowering Period: Feb - Sep
Description: Flowers are round and flat to somewhat bowl-shaped; 1 to 2-1/2 inches wide with dark reddish orange center; made up of 5 broad fan-shaped petals with dark reddish-orange lines and bases; blossoms on top of long hairy stalks.


Leaf and Stem Characteristics

Leaf Color: Dark green     Leaf Type: Compound     Leaf Shape: Round or oval     Leaf Margin: Smooth     Leaf Attachment: Opposite     Leaves Clasp: N
Hairs: Leaves and stems     Spines: N
Leaf Description: Feather-like, 1-1/2 to 4-1/2 inches long; divided into 5 to 9 pairs of elliptical leaflets.


Fruit and Seed Characteristics

Fruit Color: Brown   
Fruit Notes: Body of fruits is knobby and topped with a columnar beak much longer than the body of the fruit.
Seed Notes: Seeds remain viable for at least 3 years and germinate at irregular intervals.



  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  
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