Fwd: Establishing taxa as "present"
Jane McGary (Sat, 30 Aug 2008 09:39:49 PDT)

Jim Waddick wrote,

Even if all the

grown species are given the OK, how could any reasonable list exclude
the last rare species if it ever were to come into cultivation?
Shouldn't the entire genus get approval.?

You couldn't go by that. For example, there are tiny alpine Centaurea
species that will never invade anything, but that are grown by a few rock
gardeners; but no one would suggest that the entire genus is safe.
(Probably all the invasive ones are already here, however.)

Are there any weedy

carnivorous plants? Weedy Tecophiliaceae. ? etc.

Oddly enough, the carnivorous North American species Sarracenia purpurea
has been the subject of concern after being introduced to one or more bogs
in Britain. I don't know if it's really "weedy" or if this is just an
extremist view. It can form pretty dense colonies in its native habitat,
though.

Anybody who likes to grow non-native plants and is also contributing to the
Natural Resources Defense Fund should become familiar with that
organization's stance on exotic plants, which I regard as extreme.

Regarding databases, I keep one on my bulbs, but this tells me I need to go
around and make an updated list of the trees, shrubs, and perennials here.
I'd need it anyway once I put the place up for sale, since I'm hoping to
attract gardeners instead of somebody who'll clearcut and bulldoze the
whole place to plant Christmas trees.

Jane McGary
Northwestern Oregon, USA