Support the Flora of the Southeastern US
2024 has been a banner year for making the best flora we can imagine. We've created:
- Keys with embedded images of diagnostic features
- Clickable glossary terms with illustrated definitions
- FloraQuest: Carolinas & Georgia mobile app
- Heliophily and Wetland Statuses
- Direct links to Flora of North America
- 17,730 new high quality diagnostic photos and counting
With financial support from people like you, we are aiming even higher in 2025. Together we can accomplish all this: Vote on our 2025 priorities
- Add Global Conservation Ranks (GRanks) vote
- Professional graphic keys (polyclaves) to individual families/genera vote
- 2 new FloraQuest apps: Florida & Mid-South vote
- Image overlays highlighting diagnostic characters with arrows vote
- iNaturalist integration in FloraQuest vote
We've set a goal of recruiting 200 ongoing supporters to donate $15 or more each month in 2025. Please help us reach this goal and make next year's flora even better:
https://fsus.ncbg.unc.edu/main.php?pg=show-taxon-detail.php&lsid=urn:lsid:ncbg.unc.edu:taxon:{B694C84F-423C-4196-AC9A-3EED95EB0E7E}
Cressa Linnaeus. Alkali-weed.
A genus of about 6 species, perennial herbs, of tropical and subtropical areas of the New World and Old World.
Ref: Austin (2023d) In Flora of North America Editorial Committee (2023c). Show full citations.
Hover over a shape, letter, icon, or arrow on the map for definition or see the legend. Data for arrows not developed for genera and families which may have species only occurring outside the flora area.
© Bonnie Nickel, some rights reserved (CC BY-ND), uploaded by Bonnie Nickel | Cressa truxillensis source | Original Image ⭷
© Sequoia Janirella Wrens, some rights reserved (CC BY-NC), uploaded by Sequoia Janirella Wrens | Cressa nudicaulis source | Original Image ⭷Feedback
See something wrong or missing on about Cressa? Let us know here: (Please include your name and email if at all complicated so we can clarify if needed.) We greatly appreciate feedback, and will include updates from you in our next webapp update, which can take a few months.