Ontario Weeds: Yellow foxtail
Table of Contents
- Other Names
- General Description
- Stems and Roots
- Flowers and Fruit
- Similar Species
- For more information...
Name: Yellow foxtail, Setaria glauca
Other Names: sétaire glauque,
Bottle brush, Bottle grass, Bristle grass, Millet, Pigeon grass,
Wild millet, sétaire jaune, foin sauvage, mil sauvage, Setaria
lutescens (Weigel) Hubb.
Family: Grass Family (Gramineae)
General Description: Annual, reproducing
only by seed.
Photos and Pictures
Yellow foxtail. A.
Plant. B. Leaf-base. C. Spike.
Stem and leaf-base characteristics of a typical
Stems & Roots: In general appearance
similar to Green
foxtail but is characterized by having a few, prominent, silky,
kinky hairs 3-10mm, 1/8-2/5in. long) on the upper surface of the
leaf blade just near the stem; ligule a fringe of hair; no auricles;
leaf sheaths split, their margins smooth, green or slightly membranous
and transparent; stems normally round, but occasionally distinctly
flattened; inflorescence a spike 2-10cm (4/5-4in.) long, covered
with numerous, yellow to orange bristles with forward-pointing barbs.
Flowers & Fruit: Spikelets ("seeds"
or "grains") slightly larger than Green foxtail, more
prominently cross-ridged, and yellowish or straw-coloured. Flowers
from July to August.
Habitat: Yellow foxtail occurs throughout
the agricultural regions of Ontario, having essentially the same
distribution as Green foxtail but often being less abundant.
Similar Species: It is distinguished from
the other foxtails and, indeed, from all other grasses in Ontario
by the prominent silky, kinky hairs on the upper surfaces of the
leaf blades just near the stem.
For more information...
... on weed identification, order OMAFRA
Publication 505: Ontario Weeds
... on weed control, order OMAFRA
Publication 75: Guide To Weed Control
...on weeds in field crops, contact Mike Cowbrough (email@example.com),
Weed Management Specialist (Field Crops), OMAFRA
...on weeds in horticultural crops, contact Kristen Callow (firstname.lastname@example.org),
Weed Management Specialist (Hort Crops), OMAFRA
to the Ontario Weeds Gallery |