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Buffalo Bur

 

Common Name:  Buffalo Bur

Scientific Name:  Solanum rostratum

Order: Solanales

Family: Solanaceae

From USDA by Patrick J. Alexander (http://plants.usda.gov/java/largeImage?imageID=soro_003_ahp.jpg)

 

Diagnosis: Also known as Colorado bur, sandbur, beaked nightshade, Kansas thistle, or Texas thistle. Leaves lobate and opposite with undersides hirsute and with sharp spines. Petals are 5, united. Sepals are 5, separate. Stem spiny.

Photos by Justin A. Sullivan 2012

 

Flowering Period: May - September

Habitat: Grows readily on roadsides, in overgrazed pastures and cultivated fields. Often found in disturbed areas.

Photo by Justin A. Sullivan 2012

 

Conservation Status: Designated as a noxious weed in Idaho, Oregon, and Washington.

Native Status: Native to the United States.

Distribution: Widespread

From USDA (http://plants.usda.gov/maps/large/SO/SORO.png)

 

Links: Calflora (http://www.calflora.org/cgi-bin/species_query.cgi?where-calrecnum=7660)

USDA (http://plants.usda.gov/java/profile?symbol=SORO)

 

Resourses: Shouhui Wei, et al. 2009. Factors Affecting Buffalobur (Solanum rostratum) Seed Germination and Seedling Emergence. Weed Science, 57(5):521-525.

Stubbendieck, J., G.Y. Friisoe, & M.R. Bolick. 1994. Weeds of Nebraska and the Great Plains. Nebraska Department of Agriculture, Bureau of Plant Industry. Lincoln, Nebraska

Submitted By: Justin A. Sullivan, July 28th 2012

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