User talk:Derek Johnson

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I detect a strong southern bias in the rogue's gallery. I'm going to have to do something to counteract this. Have fun digesting all my comments!

I'm assuming that your prime emphasis in the rogue's gallery is intended to be species that are invasive into and/or persistent in natural habitats, not just simply plants growing where we don't want them to (weeds?). My comments are couched on that basis, as well as from personal experience from a more northern perspective.

Shouldn't we just be concentrating on species that are already in AB and actually are a problem, rather than species that currently are a local or minor problem or "might" become a problem if they ever get into the province? Species in the gallery that I don't know from AB (and would like to know where they've been found if they actually have) and am wondering why they are on the list at all: Centaurea solstitialis, Conium maculatum, Elaeagnus umbellata, Galium odoratum, Glyceria maxima, Hydrocharis morsus-ranae, Rhamnus frangula, and Silybum marianum.

I can't see lilac as being a serious invasive compared to shrubs such as Caragana arborescens (common caragana), Cotoneaster acutifolia (cotoneaster), Sambucus racemosa var. pubens (red elderberry), Sorbus aucuparia (European mountain ash) and Lonicera tatarica (Tartarian honeysuckle). The upland aspen stands at Clyde Fens are being consumed by common caragana invading from an abandoned farmstead, even after most of it was burned down to the ground in the forest fire of 2000. If you include lilac in the rogue's gallery, these other trees and shrubs should be included as well.