Oenothera cespitosa
species of plant
Oenothera cespitosa, known commonly as tufted evening-primrose or fragrant evening-primrose, is a perennial plant of the genus Oenothera native to western North America from the western edge of the Great Plains and all parts of the Intermountain West in a wide range of dry habitats. Its flowers are open at night and fade by the next day. The species is cultivated in gardens, particularly in its native range.
Description
Oenothera cespitosa is a low growing herbaceous plant that grows from a substantial taproot. Plants can have stems that can reach as much as 40 centimeters (16 in) in length or lack stems entirely. When present the stems are quite variable. They might be branched near the base or unbranched and are usually covered in fine glandular hairs, but can also be hairless on occasion. New shoots are sometimes produced the plant's slender, spreading side roots. Though the rest of the plant is herbaceous the caudex is woody.
The leaves grow together in a rosette.
The public source identifies “Oenothera cespitosa” as species of plant. This brief keeps that definition visible, then builds a research path around Oenothera, cespitosa and species.
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The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Aug 13, 2026. The linked authority identifier is Q7078657. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Oenothera cespitosa” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.