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Cal. 78 PM 28.5 Imperial County west of dunes--"It's coming!"

Cal. 78 PM 60 Imperial County, mustard in ditch just wanting to colonize BLM land and Chocolate Mountains.

Results of a 70 mph windshield survey (or whatever the local speed limits were), of Sahara Mustard (Brassica tournefortii): Either not present; is present along roadsides or in medians; or is outside of the roadside to the fence line or has moved from the roadsides to infest adjacent land.

NS = No Sahara Mustard was seen along roadside ditches; or if divided highway, also not seen in the roadside median, or in lands adjacent to the road.

RS = Road Sides were infested with Sahara Mustard. MED = In divided highways, in medians.

DES = Sahara Mustard has moved from the roadsides into the desert, agricultural areas, or other lands adjacent to the roadsides. FL = Only found along the highway cyclone-fence line, but is far enough off the roadside to pose an immediate problem for the lands adjacent to the fences. At the time of the survey, did not appear to be moving off the fence line yet.

SPECIES SURVEYED for:

BT = Brassica tournefortii or Sahara Mustard

PM = Post miles along highways, and numbers indicate the averages found not just at each post mile, but for 1/2 mile on either side of the post mile marker.

(Landmarks and other notes on other exotics or native plants will be in parentheses)

Survey 5/17/2005, notebook 193, pages 41-45.

(PM markers)

16 - RS - rare
15 - NS - agricultural lands
14 - NS - agricultural lands
13 - NS - agricultural lands
12 - RS - in front of house, one plant
11 - NS - "town" of Ripley
10 - NS
9 - NS - alfalfa fields
8 - NS - alfalfa fields
7 - NS - crops
6 - NS - crops
5 - NS - crops
4 - NS - crops
3 - NS - crops
2 - NS - crops
1 - NS
0 - NS

Imperial County line

78 - NS - town
77 - NS - agricultural and riparian
76 - NS - agricultural and riparian
75 - NS
74 - RS - very rare, only 20 plants
73 - NS
Mitchell Camp Road, overgrazed former Des. stipa grasslands
72 - NS
71 - NS
70 - NS, yellow wildflowers, desert tortoise habitat?
69 - NS
68 - RS and along edge of big wash
67 - RS - rare, found mostly along edges of washes
66 - RS - rare
65 - RS - where washes cross
64 - RS - occasional
63 - RS - occasional
62 - RS - occasional
61 - RS - thick in places
60 - RS - thick in places
59 - RS - thick in places
58 - RS - thick in places
57 - (Inspection Station Immigration)
56 - RS - thick in places
55 - RS - thick in places, espcially where washes cross
54 - RS - thick in places, espcially where washes cross
53 - RS - rare in hills
52 - RS - scattered (Ogilby Road)
51 - NS
Match line, new road starts, Edge of Choc. Mtn. rarnge & barbed wire fence
50 - NS
49 - NS
48 - NS
47 - NS
46 - NS
45 - NS
44 - NS
43 - NS
42 - NS
41 -NS (Town of Glamis)

Sand dunes start
40 - NS - snad dunes
39 - NS - snad dunes
38 - NS - snad dunes
37 - NS - snad dunes
36 - NS - snad dunes
35 - NS (Gecko Road - sand dunes end)
34 - RS - very rare, solid schimus and plantago
33 - NS
32 - NS
31 - NS
30 - NS, wildflowers, annual compositae
29 - DES - scattered and along RS
28 - DES - scattered and along RS
27 - NS - agriculture lands and isolated desert
26 - NS - agricultural lands (County Road S-33)
25 - NS - agricultural lands
24 - NS - agricultural lands
23 - NS - agricultural lands
22 - NS - agricultural lands
21 - NS - agricultural lands
Junction Cal. 115
20 - NS - agricultural lands
19 - NS - agricultural lands
18 - NS - agricultural lands
17 - NS - agricultural lands
16 - NS - (Junction 111)

Town of Brawley starts
15 - NS - town
14 - NS - town
13 - NS - town
12 - NS - town
11 - NS - town
10 - NS - town
9 - NS - town
8 - NS - town
7 - NS - town
6 - NS - town
5 - NS - town
4 - NS - town
3 - NS - town
2 - NS - town
1 - NS - town
0 - NS - Town of Brawley

Junction of Cal. Hwy. 86