''Triodanis leptocarpa'', commonly called slimpod Venus' looking-glass, is a species of

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...

in the bellflower family (

Campanulaceae The family Campanulaceae (also bellflower family), of the order Asterales, contains nearly 2400 species in 84 genera of herbaceous plants, shrubs, and rarely small trees, often with milky sap. Among them are several familiar garden plants bel ...

). It is native to the United States, where it is found primarily in the

Great Plains The Great Plains is a broad expanse of plain, flatland in North America. The region stretches east of the Rocky Mountains, much of it covered in prairie, steppe, and grassland. They are the western part of the Interior Plains, which include th ...

and

Midwest The Midwestern United States (also referred to as the Midwest, the Heartland or the American Midwest) is one of the four census regions defined by the United States Census Bureau. It occupies the northern central part of the United States. It ...

. Its natural habitat is in dry upland prairies and open rock outcrops. It is tolerant of disturbance and can be found in pastures and roadsides. ''Triodanis leptocarpa'' is an herbaceous annual. It can be distinguished from other members of the genus ''Triodanis'' by its long, narrow leaves and fruits with a single locule. In addition, the fruits from cleistogamous flowers twist and arch away from the stem. It blooms from May to August.

References

{{Taxonbar, from=Q15554376 Campanuloideae Flora of the Northeastern United States Flora of the North-Central United States Flora of the Northwestern United States Flora of the South-Central United States Flora of the Southeastern United States Flora without expected TNC conservation status