Native Plants

Plant Database

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Lebsack, Tom

Oenothera grandis

Oenothera grandis (Britton) Smyth

Showy Evening-primrose, Largeflower Eveningprimrose, Showy Eveningprimrose

Onagraceae (Evening Primrose Family)

Synonym(s): Oenothera laciniata var. grandiflora, Raimannia grandis

USDA Symbol: OEGR2

USDA Native Status: L48 (N)

From the Image Gallery

8 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Annual
Habit: Herb
Fruit Type: Capsule
Size Notes: Stems erect to ascending, up to about 3 feet long.

Bloom Information

Bloom Color: Yellow

Distribution

USA: AL , AR , CO , CT , FL , IL , IN , KS , LA , MD , MO , NC , NJ , NM , NY , OK , TX

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Native Plant Center at Westchester Community College, The - Valhalla, NY

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter
Webref 77 - Wildflower Search - Wildflower Identification Website (2020) WildflowerSearch.org

Additional resources

USDA: Find Oenothera grandis in USDA Plants
FNA: Find Oenothera grandis in the Flora of North America (if available)
Google: Search Google for Oenothera grandis

Metadata

Record Modified: 2025-09-24
Research By: TWC Staff

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