[Jimson Weeds: The Genus Datura in the Columbia River Gorge of Oregon and Washington]

Jimsonweed, Jimson Weed, Thorn-apple, Thorn Apple

Datura stramonium

Synonyms: Datura stramonium var. stramonium, Datura stramonium var. tatula, Datura tatula

Jimsonweed, Jimson-weed, Thorn-apple, Thorn Apple: Datura stramonium (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).

Jimsonweed, Jimson-weed, Thorn-apple, Thorn Apple: Datura stramonium (Synonyms: Datura stramonium var. stramonium, Datura stramonium var. tatula, Datura tatula)

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.

Jimsonweed, Jimson-weed, Thorn-apple, Thorn Apple: Datura stramonium (Synonyms: Datura stramonium var. stramonium, Datura stramonium var. tatula, Datura tatula)

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.

Paul Slichter