2009 Barry Rice   cc-by-nc-sa-3.0

Houstonia caerulea (Azure Bluet) is a species of perennial herb in the family Rubiaceae. They are native to Canada and The Contiguous United States. Flowers are visited by Syrphid fly, Tricolored Bumble Bee, Large bee-fly, and Snowberry Clearwing.

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EOL has data for 13 attributes, including:

Known occurrences, collected specimens and observations of azure bluet. View this species on GBIF