Oenothera organensis

A large, branched Oenothera with very long hypanthia. Endemic to the Organ Mountains, found near permanent water in moist canyons.

A flower at Fillmore Spring on the west side of the Organ Mountains, 10 Jun 2007.

Side view of a flower, showing the long hypanthium, near Fillmore Spring, 10 Jun 2007.

A middle cauline leaf on the west side of the Organ Mountains, 10 Jun 2007.

Sepals in bud near Fillmore Spring, 10 Jun 2007.

Plant habit in upper Bar Canyon, 27 Jan 2008.