What plant is that?

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Dutchmans Pipe flowerDutchmans Pipe fruit
Dutchmans Pipe leaves Dutchmans Pipe vining up tree

Photo credits: © Francis R. Underwood 2020

The mystery plant for June 2020 is a vine which is more frequently found at sites well south of New England but it also can be found growing in Rhode Island.  This vine twines around the tree, upward for 30-40 feet or more. The alternate leaves are large and heart-shaped.  The vine flowers in June and are shaped like a pipe used for smoking.  The plant produces a cucumber-like fruit.

It’s. . .

Botanical Name:
Aristolochia macrophylla (USDA)
Isotrema macrophyllum  (Go Botany)
Common Name:
  Dutchmans Pipe
  Aristolochiaceae (Birthwort Family)
  Tree trunks