Vascular Plants of North Carolina
Account for Malaysian False-pimpernel - Torenia crustacea   (L.) Chamisso & Schlechtendal
Members of Linderniaceae:
Only member of Torenia in NC.
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Section 6 » Family Linderniaceae
Author(L.) Chamisso & Schlechtendal
DistributionA single collection is known: Cumberland County, weed in lath-house of nursery south of Fayetteville, Sept 1966, W.G. Butler s.n. (NCU). Also photographed at Lumber River State Park in Columbus County in August 2020 by N. Flanders; and at one or two places in Wake County in 2019-2020, photos on iNaturalist.

Native of southern Asia; in N.A. NC to FL, TX, and AR.
AbundanceVery rare.
HabitatWeed in plant nursery; floodplain forest.
PhenologyFlowering and fruiting May-August, if not into September.
IdentificationThe plants are small, the stems ascending to somewhat erect (or sometimes prostrate) and at most 10 inches long. From our other similar species (in the genus Lindernia), it has 4 fertile stamens instead of 2. The flowers are tubular with flaring lobes; the lower lobes are lavender to blue; the upper lobes are white with blue streaks. The leaves are quite rotund to widely ovate, typically much wider than in the native Lindernia species.
Taxonomic CommentsFormerly treated as Lindernia crustacea.

Other Common Name(s)
State RankSE
Global RankGNR
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US Status
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Nick FlandersLumber River State Park, Columbus County; 29 August 2020 ColumbusOther_non_natural
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