Minidoka County, Idaho - Official Website

Home

Departments

Calendar

Photo Gallery

Search the Web Site:

">

 

 
[includes/nav/main.htm]

 

Home :: Weed Department :: Noxious Weeds » Silverleaf Nightshade

Silverleaf Nightshade (white horsenettle, silverleaf nettle, bullnettle)
Solanaceae, the nightshade family

Background

Silverleaf NightshadeSilverleaf Nightshade is native to the central U.S. The plant spreads by seeds and rhizomes, and grows under a variety of environmental conditions. Berries and foliage are poisonous to livestock.

Description

Silverleaf Nightshade is a perennial that grows up to 3 feet tall. Leaves are lance shaped, somewhat wavy along the edges, an inch or less in width, and up to 5 inches long. Stems are armed with a few yellowish thorns. Both stems and leaves are covered with downy hairs, giving the plant a silvery appearance. Flowers are about 1 inch wide with 5 bluish to lavender or occasionally white petals, surrounding 5 bright yellow anthers clustered in the center. Flowers bloom from midsummer until frost. Fruits are smooth, orange-yellow to dark colored, many- seeded berries. The plant has extensive horizontal rhizomes from the crown.

Distribution

Silverleaf Nightshade distribution mapSilverleaf nightshade is found throughout the central U.S. and occasionally in the West. Idaho infestations are noted in the map at left.

Control

Herbicides ate registered for control of silverleaf nightshade. No biological control agents are available for Idaho.

© 1999 University of Idaho: Text and photographs for these pages from Idaho's Noxious Weeds, by Robert H. Callihan and Timothy W. Miller (revised by Don W. Morishita and Larry W. Lass).

Please contact: Ag Publishing, University of Idaho, Moscow, Idaho 83844-2240; 208 882-7982 visit the Resources for Idaho website at http://info.ag.uidaho.edu, for more information about this or other publications.

 

 

 

-- Home :: Commissioners :: Departments :: Judicial ::Services ::  Links --

-- Commissioners' Proclamation --
-- Terms of Use --
--  Site Map --

©2010 Minidoka County, Idaho
- Web Site by Surf The Snake -