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iNat·62412GenusPlantae2,736 field observations
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  2. ›Vascular Plants
  3. ›flowering plants
  4. ›Dicots
  5. ›Gentians, Dogbanes, Madders, and Allies
  6. ›gentian family
  7. ›gentian tribe
  8. ›dwarf, fringed, and green gentians
Screwstems
Plate 1 of 6. (c) Rob Curtis, some rights reserved (CC BY-NC-SA), uploaded by Rob Curtis · via iNaturalist

Screwstems

Bartonia

Bartonia is a genus of the gentian family, tribe Gentianeae, subtribe Swertiinae. Members of this genus are called screwstems. Bartonia was also the name of a genus in the Loasaceae family, but those species are now generally classified under the genus Mentzelia.

As of August 2020, Kew's Plants of the World Online accepts three species of Bartonia:

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4 branches of this genus, most-observed first

yellow screwstem

speciesBartonia virginica

Twining Screwstem

speciesBartonia paniculata

White Screwstem

speciesBartonia verna

Texas screwstem

speciesBartonia texana

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Where it lives

Recorded sightings

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geo-referenced records in GBIF, from museums, herbaria and field observers.

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In the stacks

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Every page naming Bartonia in the Biodiversity Heritage Library →

This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 62412.