She turned over and watched her blue felt dress, freshly washed and dripping, swinging from the branch of a flowering hops tree.

Orme de Samarie, Pickaway Anise, Prairie Grub, Ptelea trifoliata, Scubby Trefoil, Stinking Prairie Bush, Swamp Dogwood, Three-Leaved Hop Tree, Wingseed.

Larvae have been reared on Ptelea trifoliata.

Hoptree (Ptelea trifoliata) has leaves that are remarkably similar.

The larvae feed on Ptelea trifoliata.

The quaternary alkaloids of Ptelea trifoliata.

Ptelea trifoliata ssp.

Ptelea trifoliata (hoptree, stinking ash, wafer ash) is a species of flowering plant in the Rutaceae family, native to North and Central America.

USDA PLANTS Profile for Ptelea trifoliata (common hoptree)

Ptelea trifoliata is the second-northernmost New World representative of the Rue (Citrus) family after American prickly-ash (Zanthoxylum americanum).

While Ptelea trifoliata is most often treated as a single species with subspecies and/or varieties in different distribution ranges, some botanists treat the various Hoptrees as a group of four or more closely related species:

Orme de Samarie, Pickaway Anise, Prairie Grub, Ptelea trifoliata, Scubby Trefoil, Stinking Prairie Bush, Swamp Dogwood, Three-Leaved Hop Tree, Wingseed.

At least six other plants, including Fimbristylis annua, Dichanthelium ensifolium, Ptelea trifoliata, Silene catesbaei, Symphyotrichum undulatum, and Viguiera(Rhysolepis) anchusifolia have had names that honored Baldwin, but these are no longer in use.