Name: Evan Pioneer Valley south, MA, USA (Zone 6a)
greene said: Fallstar,
Your photo is excellent and would make a good addition to our database.
Here's a link to the main plant entry for Arum. Arums (Arum) While Arum italicum is one of the most frequently cultivated in the genus, many species have a similar fruiting head. We might be able to ID the species if you're able to post photos of leaves this fall.