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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