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Field Survey Summary Tables – Taber County
120
Table 133. 2009 irrigated fields in Taber County (152 fields)
Frequency Field Uniformity
Field Density (#/m
2
)
Relative
Rank Species
(%)
All Occurrence All Occurrence High Abundance
1
Wild oats
24.3
5.7
23.4
0.9
3.8
33.6
49.3
2
Kochia
36.2
5.2
14.3
0.6
1.7
14.6
46.2
3
Dandelion
16.4
3.9
24.0
0.5
3.0
20.8
30.6
4
Wild buckwheat
17.8
3.9
22.0
0.3
1.7
12.4
26.9
5
Canada thistle
19.1
2.3
11.9
0.3
1.3
9.0
21.7
6
Canola (Argentine)
9.9
2.0
20.0
0.2
2.2
21.4
15.3
7
Foxtail barley
8.6
1.2
14.2
0.3
3.4
15.0
14.3
8
Green foxtail
6.6
1.6
25.0
0.3
4.0
28.8
13.9
9
Redroot pigweed
9.2
1.7
18.9
0.2
1.7
9.0
13.0
10
Alfalfa
3.3
1.3
39.0
0.2
6.3
19.2
10.0
11
Round-leaved mallow
7.9
1.1
13.3
0.1
0.9
2.2
8.5
12
Lamb's-quarters
5.9
1.1
18.3
0.1
1.1
4.4
7.4
13
Quack grass
4.6
0.5
10.0
0.1
1.3
3.0
4.9
14
Pasture sage
1.3
0.7
55.0
0.1
5.7
6.8
4.4
15
White sweet-clover
0.7
0.5
75.0
0.1
8.0
8.0
2.9
16
Yellow sweet-clover
2.6
0.3
12.5
< 0.1
1.0
2.0
2.8
17
White mustard
0.7
0.4
60.0
0.1
9.4
9.4
2.8
18
Wheat
1.3
0.3
20.0
0.1
4.3
8.0
2.7
19
Goat's-beard
2.6
0.2
8.8
< 0.1
0.7
1.8
2.4
20
Field bindweed
2.6
0.2
7.5
< 0.1
0.6
1.6
2.2
21
Sunflower species
2.0
0.3
13.3
< 0.1
1.1
1.6
2.2
22
Barnyard grass
0.7
0.3
50.0
< 0.1
3.2
3.2
1.7
23
Perennial sow-thistle
2.0
0.2
8.3
< 0.1
0.5
0.6
1.7
24
White clover
2.0
0.2
8.3
< 0.1
0.4
0.6
1.6
25
Spiny annual sow-thistle
0.7
0.3
40.0
< 0.1
3.6
3.6
1.6
26
Flixweed
2.0
0.1
5.0
< 0.1
0.2
0.2
1.4
27
Showy milkweed
1.3
0.1
7.5
< 0.1
0.7
0.8
1.1
28
Broad-leaved plantain
0.7
0.2
25.0
< 0.1
2.2
2.2
1.1
29
Prickly rose
0.7
0.1
20.0
< 0.1
2.2
2.2
1.0
30
Bull thistle
1.3
0.1
5.0
< 0.1
0.3
0.4
0.9
31
Purslane
0.7
0.1
15.0
< 0.1
1.4
1.4
0.8
32
Common groundsel
0.7
0.1
15.0
< 0.1
0.8
0.8
0.7
33
Timothy
0.7
0.1
10.0
< 0.1
0.6
0.6
0.6
34
Downy brome
0.7
< 0.1
5.0
< 0.1
1.2
1.2
0.6
35
Stinkweed
0.7
< 0.1
5.0
< 0.1
0.2
0.2
0.5