Vascular Plants of North Carolina
Account for Threadleaf Sundrops - Oenothera linifolia   Nuttall
Members of Onagraceae:
Members of Oenothera with account distribution info or public map:
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Section 6 » Order Myrtales » Family Onagraceae
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DistributionScattered locations in the Piedmont, Sandhills, and southern Coastal Plain. First collected in NC by H.L. Blomquist in 1932 in Durham County, then a large population in Union County in 1967 by Williams & Taylor.

Apparently native of TN-IL-KS south to GA-TX; adventive east of the Appalachians, and some occurrences east of the Mississippi Rver may also be non-native. Though Weakley (2018) considers it as apparently native in NC and other Atlantic Coast states, the website editors disagree, owing to its ruderal habitats and widely scattered occurrences well east of the main range. The NCNHP considers it SE? (probably exotic), and the map below is coded as non-natural occurrences.
AbundanceRare in the southern Piedmont, and very rare elsewhere.
HabitatDry sandy roadsides, edge of military airfield, granite outcrop (Franklin Co.), waste ground.
PhenologyFlowering and fruiting May-July.
IdentificationThis species is easily identified by its slender aspect, height about 1 foot, many extremely slender leaves (only 1 mm wide), and short oblanceolate or short-elliptical fruits.
Taxonomic Comments
Other Common Name(s)
State RankSE?
Global RankG5
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