For an in depth look at the genus Stachytarpheta in Florida, see the Roger Hammer article "The So-called Porterweeds" from the Florida Native Plant Society Miami-Dade chapter newsletter The Tillandsia at the FNPS Pinellas Chapter website.
Stachytarpheta Vahl
porterweed
Three different porterweeds can be found in Florida, one native, one non-native invasive and a hybrid of the two.
Species of the Stachytarpheta genus in the Wild Florida Photo database:
The genus Stachytarpheta is a member of the Verbenaceae - Verbena family.
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Stachytarpheta jamaicensis
