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Buffalobur
(Solanum rostratum)
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Background
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 Buffalobur is native to the Great Plains region of the
U. S. It is a drought-tolerant species that can grow in a wide variety of
environmental conditions. Buffalobur spreads exclusively by seeds, which are
enclosed within the spiny lobed
caylx. |
Description
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 Buffalobur is an
annual, with spiny leaves, flowers, and
stems, that grows up to 2 feet tall. Leaves are deeply
lobed like a watermelon leaf, and up to 5
inches long. Flowers are 1 inch across, 5 petalled, bright yellow, and bloom
from midsummer until frost. One of the anthers
in each flower is longer than the other four. The fruit is a dry berry that
is overgrown by the calyx, forming a
burlike fruit. Seeds are black, flat, and wrinkled.
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Distribution
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 Buffalobur is widely scattered throughout the West and has been seen in
selected Idaho counties that are shown below.
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Control
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No biological control agents are
available for Buffalobur, but herbicides are available that can provide
excellent control of this weed.
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© 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.
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