Arisaema triphyllum

Erik Van Lennep
Sun, 27 Aug 2017 11:25:37 PDT
I'm sure some of the more experienced members will reply to this, but
meanwhile I did find this about the rust (not a virus)Uromyces ari


On 27 August 2017 at 20:12, Jane McGary <> wrote:

> I see that among the material offered in the latest BX is Arisaema
> triphyllum, a North American native known as "Jack in the pulpit." I
> remember reading, I think in the NARGS Quarterly long ago, that A.
> triphyllum shoiuld not be planted in a garden where other Arisaema species
> are grown (at least, outside its native range) because it can carry a virus
> which it tolerates, but which is harmful to related species. Does anyone
> know more about this?
> Jane McGary
> Portland, Oregon, USA
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