Family: Onagraceae
Author: Nutt.
Bibliography: J.Fraser, Cat. Pl. Upper Louisiana: n.º 53 (1813)
Year: 1813
Status: accepted
Rank: species
Genus: Oenothera
Vegetable: False
Observations: WC. & C. Canada to N. Mexico
Description
The tufted evening-primrose, scientifically known as Oenothera cespitosa, is a remarkable species belonging to the Onagraceae family. Described by Nuttall and first cataloged in “Cat. Pl. Upper Louisiana” by J. Fraser in 1813, this plant captivates both botanists and plant enthusiasts with its unique characteristics and extensive range.
Tufted evening-primrose is native to a wide geographical area, stretching from western and central Canada down to northern Mexico. This expansive distribution indicates the plant’s remarkable adaptability to different climatic and environmental conditions across North America.
Characterized by its tufted growth habit, Oenothera cespitosa typically flourishes in open, arid environments where it can be easily spotted due to its striking features. The plant produces rosettes of deeply lobed leaves and boasts large, fragrant flowers that open in the evening—a trait common among plants within the Oenothera genus. The flowers are typically white or pale pink and emit a sweet fragrance, attracting nighttime pollinators, such as moths.
One of the unique aspects of the tufted evening-primrose is its ecological role. The plant thrives in harsh, dry conditions, often contributing to soil stabilization and providing a vital source of nectar for various pollinators. Additionally, its presence in diverse habitats underscores its ecological versatility and importance.
In cultivation, tufted evening-primrose is appreciated not only for its hardiness but also for its aesthetic appeal. Its large, white blossoms add a charming touch to xeriscape gardens and other drought-tolerant landscaping projects. Gardeners value this species for its low maintenance requirements and its ability to attract pollinators, thus supporting local biodiversity.
In summary, the tufted evening-primrose is a significant species within the Onagraceae family, notable for its extensive range, ecological adaptability, and beautiful, fragrant flowers. Whether observed in the wild from the expansive regions of Canada to northern Mexico or cultivated in a garden, Oenothera cespitosa continues to enchant and play a crucial role in its native ecosystems.
Common Names
Eng: tufted evening primrose, tufted evening-primrose
Fra: onagre cespiteuse
En: Tufted evening-primrose, Tufted evening primrose, Desert evening primrose, Evening Stemless Primrose, Gumbo lily, Moonrose, Rock-rose evening primrose, White-Rufted Evening
Ar: أخدرية أجمية
Fr: Onagre cespiteuse
Sv: Jordnattljus
Synonyms
- Oenothera cespitosa var. typica (Munz)
- Pachylophus cespitosa ((Nutt.) Raim.)
Distribution
- Alberta (native)
- Arizona (native)
- California (native)
- Colorado (native)
- Idaho (native)
- Manitoba (native)
- Mexico Northeast (native)
- Mexico Northwest (native)
- Montana (native)
- Nevada (native)
- New Mexico (native)
- North Dakota (native)
- Oregon (native)
- Saskatchewan (native)
- South Dakota (native)
- Texas (native)
- Utah (native)
- Washington (native)
- Wyoming (native)
Additional Images
Flower
Taken Jan 1, 1900 by EOL − W. L. Wagner (cc-by-nc-sa)
Taken Jan 1, 1900 by EOL − R. A. Raguso (cc-by-nc-sa)
Taken Jan 1, 1900 by EOL − W. L. Wagner (cc-by-nc-sa)
Taken Mar 2, 2022 by Evelyn Betz (cc-by-sa)
Taken Jun 7, 2022 by Randi DeBruyne (cc-by-sa)
Sources
- WFO (No URL)
- IPNI (No URL)
- GBIF (https://www.gbif.org/species/3188809)
- POWO (http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:613583-1)
- PlantNet (https://identify.plantnet.org/species/the-plant-list/Oenothera cespitosa Nutt.)