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Earthshare of Washington

Home > Invasive Species

Collections Needed

Need help with identification? Try:

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Plants of Washington Image Collection

Adams County (42 taxa)

Scientific Name
Noxious Weed Class
Phenology*
Collector**

Adonis aestivalis

Monitor
6
 

Aegilops cylindrica

C
5-11
 

Cardaria draba

C
5-6
 

Carduus nutans

B
6-9
 

Cenchrus longispinus

B
7-10
 

Centaurea solstitialis

B
7-10
 

Centaurea solstitialis

B
7-10
 

Centaurea diffusa

B
7-10
 

Centaurea calcitrapa

A
5-6
 

Centaurea stoebe

B
7-10
 

Centaurea repens

B
6-10
 

Chondrilla juncea

B
7-10
 

Cirsium arvense

C
7-9
 

Cirsium vulgare

C
7-10
 

Conium maculatum

C
4-10
 

Convolvulus arvensis

C
5-10
 

Cyperus esculentus

B
8-10
 

Cytisus scoparius

B
3-10
 

Euphorbia esula

B
5-7
 

Euphorbia myrsinites

B
5-9
 

Gypsophila paniculata

C
6-9
 

Hypericum perforatum

C
6-10
 

Kochia scoparia

B
9-12
 

Lepidium latifolium

B
5-9
 
Leucanthemum vulgare
B
5-9
 

Linaria vulgaris

C
6-8
 

Linaria dalmatica

B
5-9
 

Lythrum salicaria

B
7-0
 
Myriophyllum spicatum 
B
8-10
 
Onopordum acanthium
B
6-9
 

Phragmites australis subsp. australis

C
8-10
 

Potentilla argentea

Monitor
6-9
 

Secale cereale

C
5-8
 

Senecio vulgaris

C
3-12
 

Silene latifolia subsp. alba

C
4-8
 

Solanum rostratum

A
8-9
 

Sphaerophysa salsula

B
5-6
 

Tamarix ramosissima

B
5-6
 

Tanacetum vulgare

C
7-9
 

Tribulus terrestris

B
7-10
 

Tripleurospermum inodorum

C
7-10
 

Verbascum thapsus

Monitor
5-10
 

Xanthium spinosum

C
7-9
 

* The numbers represent months of the year when the species has been collected, extracted from herbarium labels at WTU (with a few dates based on records at MO, NY, UC, and UBC).

On-line data sources for phenology:

MO:    http://mobot.mobot.org/W3T/Search/vast.html

NY:     http://sciweb.nybg.org/science2/vii2.asp

UBC:   http://herbarium.botany.ubc.ca/herbarium_data/vascular/search.htm

UC:     http://www.mip.berkeley.edu/www_apps/smasch/

WTU:   http://biology.burke.washington.edu/herbarium/collections/vascular/basicsearch.php

** email wnps@wnps.org when you've made a collection and we will put your name onto the list, this will help us minimalize duplication of efforts.  Use the email subject line:  Herbarium Collection