Gratiola Linnaeus. Hedge-hyssop.
A genus of about 20 species, herbs, of temperate regions (and tropical mountains) of the Old and New Worlds. Circumscription of the genus includes Amphianthus (following Estes & Small 2007, 2008).
ID notes: Gratiola amphiantha somewhat resembles Callitriche, but has floating leaves in single pairs rather than in a whorl.
Ref: Estes & Small (2007); Estes & Small (2008); Freeman (2019b) In Flora of North America Editorial Committee (2019); Pennell (1935). 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.
© Ken-ichi Ueda, some rights reserved (CC BY), uploaded by Ken-ichi Ueda | Gratiola lutea source | Original Image ⭷
© Scott Ward | Gratiola amphiantha | Original Image ⭷
© Michelle, some rights reserved (CC BY), uploaded by Michelle | Gratiola brevifolia source | Original Image ⭷
© Scott Ward | Gratiola ramosa | Original Image ⭷Feedback
See something wrong or missing on about Gratiola? 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.
Cite as...