“Ant plant”

Leaf stems, an emerging white flower and yellowish-orangish fruits. This plant is epiphytic.

From Wikipedia: “Myrmecodia tuberosa, the ant plant, is an epiphytic plant. The species has a symbiotic relationship with some ant species where ants use the hollow body of the plant as shelter, defend the plant from other insects, and provide nutrients to the plant through their waste.”
» https://en.wikipedia.org/wiki/Myrmecodia_tuberosa

This photo at PhytoImages, http://phytoimages.siu.edu/imgs/paraman1/r/Rubiaceae_Myrmecodia_tuberosa_129603.html

Species page at PhytoImages, http://phytoimages.siu.edu/cgi-bin/dol/dol_terminal.pl?taxon_name=Myrmecodia_tuberosa&rank=binomial

Photo taken at SIUC Plant Biology Greenhouse, http://www.plantbiology.siu.edu/facilities/plant-biology-facilities/greenhouse/index.php

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