Native Seed Collection and Invasive Plant Eradication

By Wendy Mahovlic (last updated April, 2016)
a bunch of dandelions

NPS Photo / Alyssa Parker-Geisman

Denali’s six-million acres is relatively unaffected by the spread of non-native plant species. As a matter of fact, most of Denali’s 28 invasive plants tend to be found in the human-disturbed footprint of the park entrance area and road corridor. However, just because the number of invasive plants species isn’t high doesn’t mean that they should be allowed to run amuck. So each summer, Denali’s exotic plant management team tracks and eradicates infestations of these alien species.

2014 Update
During the summer of 2014, Denali's invasive plants specialist, Wendy Mahovlic, along with volunteers collected a total of 26 lbs (uncleaned weight) of native seeds for revegetation projects. These volunteers donated a total of 390 hours and made in possible to revegetate 2.25 acres with native seeds. 

Seed collections were made at the east and west ends of the park:

 

East

West

Headysarum alpinum 4 lbs 2 lbs
Elymus sp 8 lbs 4 lbs
Hedysarum mackenzil 6 lbs 0 lbs
Leymus Innovatus 0 lbs 1 lb
Oxytopis campestris 0 lbs 8 lbs
Arnica lessingii 0 lbs 1 lb
Total 18 lbs 8 lbs


Along with collecting native seeds, the invasive plants team pulled a total of 3,163 lbs of invasive plant species, and a total number of 1,524 volunteer hours were contributed to the project.

 

Plant Species Removed

Common Name

Pounds Removed

Location Plant Removed

Hordeum jubatum Foxtail Barley 1079 lbs Miles 237.25 and 238 Parks Hwy; scattered Mile 1-2 park road, Shaffer Bldg, CLA Bldg., Kennels Road
Taraxacum officinale Dandelion 891 lbs Mile 1 - 43, Mile 72 - 92 of the park road
Vicia cracca Bird Vetch 515 lbs (lots of dirt) Mile 240 and 231 Parks Hwy and Denali Education Center. Mile 1 Park Rd.
Crepis tectorum Narrowleaf Hawk’s-Beard 493 lbs Sewage Lagoon, Mile 1 of the park road, Bus parking lot
Melilotus alba White Sweet Clover 85 lbs Mile 232.5 and Mile 238 Parks Highway
Lupinus polyphyllus Bigleaf Lupine 60lbs Mile 7 pull-out Park Rd.
Galeopsis bifida Hempnettle 1lb Kantishna Horse Corral
Linaria vulgaris Yellow Toadflax 1 lb Railroad tracks, Denali Depot
Trifolium pratense Red Clover 3lbs Mile 1 Park Rd.


2015 Update
During the summer of 2015, Denali's invasive plants specialist and volunteers collected a total of 65 lbs (uncleaned weight) of native seeds for revegetation projects. These volunteers donated a total of 2390 hours and made in possible to revegetate 2.1 acres with native seeds. 

Seed collections were made at the east and west ends of the park:

 

East

West

Headysarum alpinum 14 lbs 3 lbs
Elymus sp 9 lbs 12 lbs
Oxytropis campestris 12 lbs 3 lbs
Leymus Innovatus 2 lbs 5 lb
Calamagrostis canadensis 0 lbs 3 lbs
Arnica lessingii 0 lbs 1 lb
Delphinium glaucum 0 lbs .5 lb
Aster Sibericus 0 lbs .5 lb
Total 37 lbs 28 lbs


Along with collecting native seeds, the invasive plants team pulled a total of 2,225 lbs of invasive plant species.

Plant Species Removed Common Name Pounds Removed Location Plant Removed
Hordeum jubatum Foxtail Barley 520 lbs Miles 237.25 and 238 Parks Hwy; scattered Mile 1-2 park road, Shaffer Bldg, CLA Bldg., Kennels Road
Taraxacum officinale Dandelion 621 lbs Mile 1 - 43, Mile 72 - 92 of the park road
Vicia cracca Bird Vetch 200 lbs (lots of dirt) Mile 240 and 231 Parks Hwy and Denali Education Center. Mile 1 Park Rd.
Crepis tectorum Narrowleaf Hawk’s-Beard 105 lbs Old Sewage Lagoon, Mile 1 of the park road, Bus parking lot
Melilotus alba White Sweet Clover 24 lbs Mile 231 and Mile 238 Parks Highway
Descurainia sophia Flixweed 755 lbs Mile 28 (Teklanika Pit), Mile 4, Mile 24 (Sanctuary Hill)


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Last updated: January 12, 2017