Delicate Arch Viewpoint Inaccessible
Wolfe Ranch and the hiking trail to Delicate Arch are open, but flood waters and mud have blocked the road to Delicate Arch Viewpoint.
Safety in Bear Country
Black bears have been seen near Devils Garden Campground. Don't lure or feed them. Dispose of trash in designated receptacles; don't leave it in bags or other soft containers. Store food in vehicles or hard containers when not being prepared or consumed. More »
Bridges Evening-primrose (Tall Yellow Evening-primrose)
Family: Onagraceae (Evening-primrose Family)
Perennial or biennial herbs; stems 7.9” to 5.9' (2 to 18 dm) tall or more
Leaves: alternate and basal; simple; can be toothed; 0.8” to 14” (2 to 35 cm) long, 0.12” to 1.8” (0.3 to 4.5 cm) wide
Flowers: 4 yellow petals; 4 sepals; 8 stamens; 4 lobed stigma; bisexual; usually radially symmetrical; fragrant; 1” to 2” (2.5 to 5 cm) long
Pollinators: other Oenothera species are pollinated by bees, moths and butterflies
Fruits: 4 chambered capsule
Blooms in Arches National Park: April, May, June, July, August, September, October
Habitat in Arches National Park: disturbed areas, riparian areas and hanging garden communities
Location seen: lower and upper Courthouse wash
Other: The genus name, “Oenothera”, means “wine-scented” and refers to the use of the roots in winemaking. The species name, “longissima”, refers to the long corolla tube or hypanthium.
The type specimen was collected in 1911 in Natural Bridges National Monument in southeast Utah which is where one of the common names comes from.
Did You Know?
Even though graffiti is prohibited by law, rangers and volunteer groups spend hundreds of hours every year removing it in Arches. Please join us in protecting the park by not leaving your mark. If you discover graffiti in the park, please let us know. Otherwise, make memories, take pictures, but leave no visible trace of your visit. More...