Jimsonweed, Jimson Weed, Thorn-apple, Thorn Apple
Synonyms: Datura stramonium var. stramonium, Datura stramonium var. tatula, Datura tatula
The photo above shows jimson-weed as seen on the west bank of the Deschutes River at its mouth................. October 7, 2006. The corolla of Datura stramonium is shorter (6-9 cm long) than that of Datura wrighii (15-20 cm long).
The photo above shows a close-up of the flower, leaves and thorny fruit of jimson-weed as seen on the west bank of the Deschutes River at its mouth................. October 7, 2006. The leaves are greener and the ribs of the calyx are somewhat winged on this species while the leaves of Datura wrightii are grayer (felt-like hairs) with the calyx ribbed rather than winged.
Jimson-weed fruit as seen along the river trail along the east bank of the Deschutes River about one mile upstream from its mouth...........November 3, 2013.