Ontario Weeds: Bristly foxtail
Excerpt from Publication 505, Ontario Weeds, Order this publication
Table of Contents
Name: Bristly foxtail, Setaria verticillata
Green foxtail. A. Plant with stem folded twice. B. Leaf bse. C. Spike. Bristly foxtail. D. Leaf-base. E. Spike. F. Cluster of 3 spikelets and 6 bristles with backward-pointing barbs.
Stem and leaf-base characteristics of a typical grass.
Stems & Roots: Stems, leaves
and general habit of growth very similar to those of Green
foxtail. The spike is "interrupted," the clusters
of spike-lets being somewhat separated from one another along the
central stalk. The greenish bristles are covered with tiny, sharp,
backward-pointing barbs and these cause the whole spike to cling
to the skin, hair, other spikes and, indeed, any rough surface (hence
the name "bristly"). When the stems are whipped around
by the wind and the spikes touch each other, they cling together
in a tangled mass. Its "seeds" are about the same size,
shape and colour as those of Green foxtail.
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