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Oenothera albicaulis

Oenothera albicaulis (White-stemmed Evening Primrose)
Onagraceae (Evening Primrose Family)

Semi-desert, foothills. Openings, sand. Spring.
Silvey's Basin, May 17, 2014.

Oenothera albicaulis

Oenothera albicaulis

 

 

 

 

 

Oenothera albicaulis (White-stemmed Evening Primrose)
Onagraceae (Evening Primrose Family)

Semi-desert, foothills. Openings, sand. Spring.
South of the Hog Back, New Mexico, April 24, 2007 and Canyonlands National Park, Utah, April 24, 2014.

 

Oenothera caespitosa

Oenothera caespitosa

Oenothera caespitosa subspecies marginata (Tufted Evening Primrose)
Onagraceae (Evening Primrose Family)

Semi-desert, foothills, montane. Disturbed areas, openings, sand. Spring, summer.
Corona/Bow Tie Arches Trail, Utah, April 17, 2014 and May 27, 2016.

Oenothera caespitosa
Oenothera caespitosa subspecies marginata (Tufted Evening Primrose)
Onagraceae (Evening Primrose Family)

Semi-desert, foothills, montane. Disturbed areas, openings, sand. Spring, summer.
McElmo Canyon, Canyons of the Ancients National Monument, April 27, 2005.

Oenothera caespitosa
Oenothera caespitosa subspecies marginata (Tufted Evening Primrose)
Onagraceae (Evening Primrose Family)

Semi-desert, foothills, montane. Disturbed areas, openings, sand. Spring, summer.
McElmo Canyon, Canyons of the Ancients National Monument, April 27, 2005.

 

Oenothera coronopifolia

Oenothera coronopifolia

Oenothera coronopifolia

Oenothera coronopifolia

 

 

 

 

 

 

 

 

 

 

 

Oenothera coronopifolia (Cut-leaf Evening Primrose)
Onagraceae (Evening Primrose Family)

Foothills, montane. Woodlands, openings. Spring, summer.
Near Yellowjacket Canyon, July 23, 2016 and June 6, 2004.

The top photograph at left shows how very far stamens are exserted beyond the petals. You can also see buds of future flowers hanging in clusters waiting their turn to burst open.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

When flowers eventually do emerge, their anther sacs produce a super abundance of yellow pollen at the top of stamens which surround the ovary, style, and three-parted stigma.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Deeply lobed leaves have an abundance of appressed hairs.