5085 thumb Selected Invasive Plants of Alaska

"When trying to identify an unknown plant, color photos often help.[] Non-native invasive plants displace native vegetation, degrade wildlife habitat, and negatively affect human health, the economy, and the environment. Factors such as geographic isolation and harsh winters have ...more ↓

3804996777 6f334220ac m
bull thistle 1
Cirsium vulgare
Small
ox-eye daisy 2
Leucanthemum vulgare
642397360 c1d409dd10 m
Fox-and-cubs 3
Hieracium aurantiacum
4905847851 69f0a6e776 m
spotted knapweed 4
Centaurea stoebe micranthos
Small
meadow hawkweed 5
Hieracium caespitosum
4972345384 d7bafb0d5b m
Creeping Thistle 6
Cirsium arvense
Small
Mouse-ear Hawkweed 7
Pilosella officinarum
2798846989 e852953e53 m
false dandelion 7
Hypochaeris radicata
1209134317 5fda3eddd6 m
Canada Hawkweed 9
Hieracium umbellatum
1175159336 1595af0a35 m
Tansy 10
Tanacetum vulgare
4690489941 f6e3f26832 m
yellow salsify 11
Tragopogon dubius
5320745981 d0ec43fded m
Perennial Sow Thistle 12
Sonchus arvensis
Small
Japanese knotweed 13
Fallopia japonica
3535847370 6391db8170 m
Common Sowthistle 14
Sonchus oleraceus
812318237 ea1320be1b m
White Sweet Clover 15
Melilotus albus
874582141 f676d69b1c m
yellow sweet clover 15
Melilotus officinalis
16647291293 32698e46c5 m
garlic mustard 16
Alliaria petiolata
2674769792 54d8f7a964 m
tufted vetch 17
Vicia cracca
Small
hairy vetch 18
Vicia villosa
4639771711 e69b6acf7a m
Scots Broom 19
Cytisus scoparius
2650439658 68c7e7dda3 m
Common Toadflax 20
Linaria vulgaris
263732993 5c1ab129f9 m
Himalayan Balsam 21
Impatiens glandulifera
3785742519 30dc962fd2 m
Common hemp-nettle 22
Galeopsis tetrahit
95714 orig
cheat grass 23
Bromus tectorum
Small
Reed Canarygrass 24
Phalaris arundinacea
Small
Foxtail Barley 25
Hordeum jubatum
4972450292 74a39c22d5 m
two-rowed stickseed 6
Lappula squarrosa
2576876827 6ba07937d3 m
Siberian peashrub 10
Caragana arborescens

Edited by USFS Alaska, some rights reserved (CC BY-SA)

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