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An Assessment of Exotic Plant Species of Rocky Mountain National Park

Table 3 - Summary of Final Assessment for Exotic Plant Species of Concern

Species Name
Potential Distribution
(Total=15)
Potential Impact
(Total=40)
Current Impact
(Total=50)
Ease of Control
(Total=100) (0=Difficult)
Urgency
Agropyron repens
6
33
4
40
 Med
Bromus inermis
6
33
25
18
 Med/High
Bromus tectorum
13
25
17
24
 Med
Carduus nutans
11
26
29
25
 Med
Centaurea diffusa
11
33
22
26
 High
Centaurea maculosa
11
26
22
31
 High
Cirsium arvense
11
31
30
8
 Med
Cirsium vulgare
11
26
25
34
 Med
Chrysanthemum leucanthemem
9
29
8
33
 Med
Convolvulus arvensis
6
26
6
22
 Med
Dactylis glomerata
6
29
12
34
 Med
Euphorbia esula
11
38
42
20
 High
Gypsophilia paniculata
9
26
--
40
 Low/Med
Hypericum perforatum
13
38
-9
21
 Med
Linaria dalmatica
9
31
37
27
 Med
Linaria vulgaris
11
27
40
19
 High
Lythrum salicaria
11
31
*
31
 Med
Melilotus alba, Melilotus officinalis
9
24
9
30
 Med
Phalaris arundinaceae
9
24
--
21
 Med
Poa pratensis
11
27
23
26
 Med
Sonchus uliginosus
9
27
--
31
 Med

* Currently not found in RMNP, but is found in areas adjacent to RMNP.

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