Weeds GHIJ

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Yellow Hemp-nettle Galeopsis speciosa

Grows with a number of other weeds in Wetaskiwin rail yard. Not noted in undisturbed areas --Tony Blake 13:43, 18 April 2009 (CDT)

Hemp-nettle Galeopsis tetrahit

currently designated as "nuisance"

Galinsoga Galinsoga ciliata

Cleavers Galium aparine

currently designated "noxious"

  • a crop weed like wild oats, producers control it due to the down grading concern in Canola. Remove from NOX. Normand Boulet

Sweet Woodruff Galium odoratum

Exotic, not in ANHIC. USDA shows it in USA (CO, DE, GA, MA, MD, MI, MN, NC, NJ, NY, OH, OR, PA, RI, VA, WA), CAN (BC, ON, QC)


False Cleavers Galium spurium

currently designated "noxious"

  • same comments as Cleavers, remove from NOX. Normand Boulet

Yellow Bedstraw Galium verum

Yellow Gentian Gentiana lutea

Exotic, not in ANHIC, but has been reported in two Bow Valley locations (see the link). USDA has no distribution, so it's probably rare in NA.


Meadow Crane's-bill Geranium pratense

Ground Ivy Glechoma hederacea

Natureserve I-Rank: Medium/Insignificant

Reed Manna Grass Glyceria maxima

Low Cudweed Gnaphalium uliginosum

Annual Baby's-breath Gypsophila elegans

Baby's-breath Gypsophila paniculata

Natureserve I-Rank: Medium/Insignificant

Pink Baby's-breath Gypsophila scorzonerifolia

Halogeton, Saltlover Halogeton glomeratus

Natureserve I-Rank: High/Medium

Not in ANHIC. USDA shows USA (AZ, CA, CO, ID, MT, NE, NM, NV, OR, SD, UT, WA, WY). Allison says "Herbaceous, semi-succulent annual of the goosefoot family (Chenopodiaceae). Native to cold desert regions of central Asia. Widely established in the w. U.SA. Weed of rangelands and disturbed areas. Poisonous to livestock. Qualifies as a quarantine pest. It is not yet present in Canada and a draft pest risk assessment suggests that it is a potential threat to Canada.

  • present in adjoining states, should be PRO, particularly in view of Natureserve I-Rank James B Posey

Narrow-leaved Sunflower Helianthus maximilianii

Giant Hogweed Heracleum mantegazzianum

Natureserve I-Rank: Medium/Low

Exotic, not in ANHIC. USDA shows in USA (CT, IL, ME, MI, NY, OR, PA, WA), CAN (BC, NB, ON, QC)

Dame's rocket Hesperis matronalis

Natureserve I-Rank: Medium/Low

Orange Hawkweed Hieracium aurantiacum

Natureserve I-Rank: Medium/Low

  • Should be PRO where not already common and NOX elsewhere James B Posey
  • is it too established in AB for PRO? If so, a definite NOX. Normand Boulet

Sea Buckthorn Hippophae rhamnoides

Common Velvetgrass Holcus lanatus

Natureserve I-Rank: High/Medium

Not in ANHIC. R. Old indicates it is possible here. IUCN says it's invasive. USDA says it's here, also in USA (AK, AL, AR, AZ, CA, CO, CT, DC, DE, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MO, MS, MT, NC, ND, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, TN, TX, UT, VA, VT, WA, WI, WV), USA+ (PR), CAN (AB, BC, NB, NF, NS, ON, QC, SK)

Mouse Barley Hordeum murinum

Natureserve I-Rank: High/Low

Possible exotic, not determined in ANHIC. USDA shows as introduced in AB, BC and all states south and west of AB.

Barley Hordeum vulgare

Natureserve I-Rank: Low/Insignificant

Common Hop Humulus lupulus

European Frog's-bit Hydrocharis morsus-ranae

Exotic, not in ANHIC. USDA shows in USA (NY), CAN (ON, QC)


Black Henbane Hyoscyamus niger

Natureserve I-Rank: Medium/Insignificant

  • Should be PRO within municipal boundaries of cities and towns. Also in borrow and gravel pits. James B Posey

St John's wort, Klamath weed Hypericum perforatum

Natureserve I-Rank: High/Medium

Exotic, not in ANHIC. USDA shows in USA (AR, CA, CO, CT, DC, DE, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, VA, VT, WA, WI, WV, WY), CAN (BC, MB, NB, NF, NS, ON, PE, QC)

  • PRO because almost unknown here so far?

Hairy Cat's-ear Hypochaeris radicata

Natureserve I-Rank: High/Low

Exotic, not in ANHIC. USDA Plants shows USA (AK, AL, AR, CA, CO, CT, DC, DE, FL, GA, HI, ID, IL, IN, KY, LA, MA, MD, ME, MI, MO, MS, MT, NC, NH, NJ, NM, NV, NY, OH, OR, PA, RI, SC, TN, TX, UT, VA, VT, WA, WI, WV), CAN (BC, LB, NB, NF, NS, ON, QC, SK) says it can be weedy or invasive, listed in many states.

Himalayan Balsam Impatiens glandulifera

Natureserve I-Rank: Medium/Low

Exotic, not in ANHIC. USDA shows USA (CA, CT, ID, MA, ME, MI, MT, NY, OR, VT, WA), CAN (BC, MB, NB, NF, NS, ON, PE, QC)

  • Still only a few sites known in AB so could be a good candidate for PRO (Alec).


- Frequently grown as a garden ornamental. Often found near urban storm drain outfalls. Floating seeds spread infestations downstream.

- Extremely invasive in riparian areas (see Rogues Gallery photos ). Plants that have been cut or pulled up will readily re-root and grow again if left on moist soil.

- Definitely a PRO. This is a very NASTY weed, but it's easy to kill and it isn't widespread. It could be eliminated if we act quickly. --Tony Blake 14:46, 18 April 2009 (CDT)

Yellow Flag Iris pseudacorus

Exotic, not in ANHIC. USDA shows USA (AL, AR, CA, CT, DC, DE, FL, GA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, NE, NH, NJ, NV, NY, OH, OR, PA, RI, SC, TN, TX, UT, VA, VT, WA, WI, WV), CAN (BC, MB, NB, NF, NS, ON, PE, QC)

  • Spreading in BC and occurs in quite continental climates in Europe. As a wetland plant this would be difficult to eradicate once it got established. Possible PRO? (Alec).


Dyers Woad Isatis tinctoria

Natureserve I-Rank: High/Low

USDA shows in USA (CA, CO, DC, ID, IL, MT, NJ, NM, NV, NY, OR, UT, VA, WA, WV, WY), CAN (BC, ON, QC), can be weedy or invasive, listed in several states CO, ID, MT & WY included.

False Ragweed Iva xanthifolia