- Plants
- ›Vascular Plants
- ›flowering plants
- ›Dicots
- ›Gentians, Dogbanes, Madders, and Allies
- ›madder family
- ›Rubioideae
- ›Spermacoceae
- ›Houstonia
azure bluet
Houstonia caerulea
Houstonia caerulea (azure bluet or Quaker ladies) is a perennial species in the Rubiaceae family. It is native to eastern Canada (Ontario to Newfoundland) and the eastern United States (Maine to Wisconsin, south to Florida and Louisiana, with scattered populations in Oklahoma).
Where it lives
Recorded sightings
—
geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Houstonia caerulea 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 69752.