Plant Image
Flower


Yavapai County Native & Naturalized Plants

Solanum triflorum - cutleaf nightshade

Other Common Names: small nightshade, three-flowered nightshade
Plant Form: Forb or Subshrub

Family: Solanaceae


   
 
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Flower and leaves
Max Licher @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)
Plant
Max Licher @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)
Forb Plant Description

Origin: Introduced   Life Cycle: Annual   Similar Species: Solanum dulcamara, S. nigrum, S. sarrachoides
General Desc: Mat-like annual with sprawling stems often growing close to the ground, sometimes erect. Leaves are deeply divided and grow to 4 inches long. Rounded clusters of 3 (often) small, white, star-like flowers with yellow centers grow between the leaf and stem.
Identification notes: Annual, herbage sparsely hairy with appressed hairs; stems tend to lay on the ground; deeply pinnatifid leaves, flowers white or whitish, tend to be in clusters of 3 but can be 1 to 3; round fruits are not enclosed by the calyx.
Height: To about 16 inches long


Habitat

Habitat Description: Roadsides, cultivated fields, washes, streamsides, dry scrub lands and juniper woodlands, often in sandy soil.
Plant Communities: Desert Scrub, Interior Chaparral, Semidesert Grasslands, Pinyon Juniper Woodland, Montane Conifer Forest, Riparian, Disturbed Areas
Elevation: 1000 - 7500 feet


Flower Characteristics

Color: White, whitish     Shape: Regular in round clusters     Tubular: Y     Flowering Period: May - Sep
Description: Small, star-shaped flowers are 1/4 inch wide, have 5 petals and a yellow center. Flowers are usually white (rarely pale lavender) or whitish and tinged with green. Blooms grow in rounded clusters of 1 to 3 (often 3) and have a sweetish scent.


Leaf and Stem Characteristics

Leaf Color: Green     Leaf Type: Simple     Leaf Shape: Pinnatifid     Leaf Margin: Dissected     Leaf Attachment: Alternate     Leaves Clasp: N
Hairs: Leaves and stems     Spines: N
Leaf Description: Stems branch from the base and may grow to 1-1/2 feet tall when erect. Leaves are oval in outline, often deeply dissected, 3/4 to 4 inches long, 1/2 to 1 inch wide, often with a foul odor if rubbed. The lobe margins are thickened and curve backwards.


Fruit and Seed Characteristics

Fruit Color: Green streaked with white   
Fruit Type: Berry-like
Fruit Notes: Fruit is smooth and fleshy with a globe-like shape. It is 1/4 to 1/2 inch wide, somewhat glossy, and has a marbled green color (streaked with white) at maturity.
Seed Notes: Each seed is flat, nearly circular, light brownish-yellow and about 1/8 inch long. Many seeds are produced by the fruit which does not open to release the seeds when mature.



  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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