Arisaema triphyllum
Jane McGary (Sun, 27 Aug 2017 11:12:12 PDT)

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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