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Field Survey Summary Tables – Fescue Grassland Ecoregion
41
Table 23. 2009 irrigated annual crops in the Fescue Grassland Ecoregion (17 fields)
Frequency Field Uniformity
Field Density (#/m
2
)
Relative
Rank Species
(%)
All Occurrence All Occurrence High Abundance
1
Canola (Argentine)
8.1
8.1 100.0
1.7
20.8
20.8
41.7
2
Wild buckwheat
37.0
7.6
20.6
0.9
2.3
8.0
40.9
3
Barley
4.7
3.6
75.0
1.3
28.0
28.0
27.1
4
Wild oats
24.2
4.0
16.7
0.6
2.3
6.4
25.0
5
Lamb's-quarters
20.9
5.1
24.3
0.4
1.8
4.4
23.1
6
Chickweed
8.1
3.6
45.0
0.7
8.2
8.2
19.2
7
Field bindweed
12.9
4.3
33.5
0.4
3.3
6.0
19.1
8
Kochia
20.9
3.5
16.6
0.2
1.0
2.2
17.6
9
Dandelion
27.8
2.0
7.1
0.2
0.5
1.4
16.8
10
Hemp-nettle
8.1
3.6
45.0
0.4
4.6
4.6
15.2
11
Cleavers
12.8
1.5
11.9
0.1
1.1
2.0
9.9
12
Annual sow-thistle
16.3
0.8
5.0
< 0.1
0.3
0.4
8.6
13
Stinkweed
4.7
1.9
40.0
0.2
3.8
3.8
8.0
14
Shepherd's-purse
12.8
0.6
5.0
< 0.1
0.2
0.2
6.6
15
Stork's-bill
8.1
0.8
10.0
0.1
1.2
1.2
6.1
16
Wild mustard
4.7
0.9
20.0
< 0.1
0.8
0.8
4.2
17
Round-leaved mallow
8.1
0.4
5.0
< 0.1
0.2
0.2
4.2
18
Russian thistle
8.1
0.4
5.0
< 0.1
0.2
0.2
4.2
19
Wormseed mustard
4.7
0.2
5.0
< 0.1
0.2
0.2
2.5
Table 24. 2009 irrigated cereal crops in the Fescue Grassland Ecoregion (13 fields)
Frequency Field Uniformity
Field Density (#/m
2
)
Relative
Rank Species
(%)
All Occurrence All Occurrence High Abundance
1
Canola (Argentine)
11.3
11.3 100.0
2.4
20.8
20.8
58.8
2
Wild buckwheat
40.7
10.2
25.0
1.1
2.7
8.0
52.3
3
Wild oats
22.7
5.1
22.5
0.8
3.4
6.4
30.3
4
Field bindweed
18.2
6.1
33.5
0.6
3.3
6.0
27.5
5
Chickweed
11.3
5.1
45.0
0.9
8.2
8.2
27.4
6
Hemp-nettle
11.3
5.1
45.0
0.5
4.6
4.6
21.7
7
Kochia
18.0
4.3
23.9
0.3
1.5
2.2
19.6
8
Dandelion
21.1
1.5
7.3
0.1
0.5
1.4
13.7
9
Annual sow-thistle
22.9
1.1
5.0
0.1
0.3
0.4
13.3
10
Stinkweed
6.7
2.7
40.0
0.3
3.8
3.8
11.4
11
Round-leaved mallow
11.3
0.6
5.0
< 0.1
0.2
0.2
6.4
12
Wild mustard
6.7
1.3
20.0
0.1
0.8
0.8
6.2
13
Lamb's-quarters
6.7
0.3
5.0
< 0.1
0.2
0.2
3.8
14
Wormseed mustard
6.7
0.3
5.0
< 0.1
0.2
0.2
3.8
15
Shepherd's-purse
6.7
0.3
5.0
< 0.1
0.2
0.2
3.8