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Re: Eupatorium

It is my impression that AHS (A-Z 1999), which is often used like a bible in
the States was less quick to accept a shift in taxonomy than RHS (Dictionary
1994). So when these two major resources disagree I often check with
Datascape's Guide to Commercial Nomenclature (Newest edition 2000).
Names are all that Datascape cares about and they have always made a
concerted effort to get it right as opposed to agreeing or not agreeing with
the use of a new name.  Just because AHS' reference is newer doesn't always
make it right.  They may have simply rejected a new name.  Doesn't mean RHS
is always right either.  Another source I might check is: What name did H3
use back in 1965?  If AHS uses the same as H3, but RHS has changed it to
something else, it is my guess that AHS rejected the RHS accepted name. If
I'm still not sure, I check MOBOT and a few university sites and it may
simply come down to a general concensus of what the name is.  And when I say
a 'new' name, I mean one accepted now compared to10 or 20 years ago.  The
'new' name may very well be an even older name, as in the case of your Hardy
Ageratum.  I don't claim my method is perfect, but I try to be as accurate
as I can. Here's what I have - decide for yourself:

Hardy Ageratum:
AHS: Eupatorium coelestinum
RHS: Conoclinium coelestinum
Dscape: Conoclinium coelestinum
MOBOT:Conoclinium coelestinum
H3: Eupatorium coelestinum

Chocolate White Snakeroot:
AHS: Eupatorium rugosum
RHS:  Ageratina altissima
Dscape: Ageratina altissima
MOBOT: Eupatorium rugosum
H3: Eupatorium rugosum

----- Original Message ----- 
From: "Chris" <chris@widom-assoc.com>
To: <gardenchat@hort.net>
Sent: Monday, October 13, 2003 5:29 PM
Subject: RE: [CHAT] Eupatorium

> Kitty,
> Did that Eupatorium change names (Powdery blue perennial ageratum =
> Conoclinium coelestinum)?  What about E. rugosum 'Chocolate'?  Do you
> know for sure?
> Chris
> -----Original Message-----
> From: owner-gardenchat@hort.net [mailto:owner-gardenchat@hort.net] On
> Behalf Of kmrsy@comcast.net
> Sent: Monday, October 13, 2003 5:00 PM
> To: gardenchat@hort.net
> Subject: Re: [CHAT] This and That
> Chris,
> Powdery blue perennial ageratum = Conoclinium coelestinum
> in case you wanted to know.
> Re > I guess I'm just getting too old!
> I don't thinks so, just more discriminating of what is deserving of your
> precious time.
> I love your idea of a Cmas tree.  Maybe I'll try that.
> Kitty
> > Chris  Long Island, NY  Zone 7
> >
> > Good Morning All!
> >
> > Here we are talking about holiday decorations, and I, like Donna, have
> > not even accomplished a tenth of what I needed to do this summer!
> > Here I am sitting in front of my computer when I MUST get outside and
> > plant the last of the hostas and perennials that are waiting so
> > patiently for some real soil!  I did accomplish something this
> > morning.  I spent 45 minutes in the dentist's chair having my teeth
> > cleaned by a new hygienist.  I felt like I was in the rain forest when
> > I wasn't drowning from all the water going down the back of my throat!
> > I'm always glad when that chore is over!
> >
> > I rushed to bring in some of my large containers last week when the
> > temperatures dropped into the thirties.  We didn't have a frost here
> > on the water, but some areas of Long Island lost their most tender
> > annuals. I took cuttings from all of the coleus and plectranthus
> > plants that I wasn't bringing indoors for the winter, and I brought in
> > the ones that were already rooted.  All of my available window sills
> > are filled with colorful vases and foliage! I still need to bring in
> > the geraniums and dig out some of  my favorite annuals that are in my
> > container gardens. I hate to see the containers cannibalized, but I
> > can't wait much longer!
> >
> > The Eupatorium 'Chocolate' (or whatever it's current name is) is
> > blooming in masse along with the pink Japanese anemones!  Many of the
> > late blooming salvias look beautiful.  Powdery blue perennial ageratum
> > is bringing  sky closer to the earth.  Asters of all colors are in
> > their glory!  Leaves are beginning to change color here. On the way
> > home this morning I saw the most beautiful crimson coloring on the
> > poison ivy trees along the roadside!  Maybe I'll take some pictures of
> > the garden later and post them.
> >
> > I don't do much holiday decorating, but I usually bring in an
> > assortment of greens and hang a handmade swag on the door.  We live
> > too far from the road, 800 feet, to attract trick or treaters
> > (although I always leave a basket of candy on my entrance porch  just
> > in case). We celebrate Christmas and Chanukah in our house so I will
> > have a tree and a menorah.  I usually don't get around to putting up a
> > tree until the very last minute. Sometimes I use a few  large
> > evergreen branches that have been pruned  wired into a tree shape.  I
> > prefer the less formal tree look, so you won't find a perfectly shaped
> > specimen in my house!  I used to bake cookies and make hand made
> > ornaments, but I can't imagine how I found time or energy for those
> > things!  Now I shop via the internet and buy frozen cookie mix!  I
> > used to make my own jam and pickles too!  I guess I'm just getting too
> > old!  Of course I still teach, sing in a chorus, work on the executive
> > board of my daylily club, run fund raisers, write, take care of  my
> > personal zoo, clean, cook, wash, shop, and sometimes even garden!
> >
> > Enough procrastinating!  It's near to noon!  Gotta finish my coffee
> > and get outside!
> >
> > Chris
> >
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