Convolvulaceae

Water dawnflower

Stylisma aquatica (Walter) Raf.

Family: Convolvulaceae
Genus: Stylisma

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Water dawnflower (Stylisma aquatica) — FlowerPhoto: Matt Berger, CC BY 4.0, from iNaturalist

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Common names

By language (1)

English: Water dawnflower

Synonyms

Bonamia aquatica (Walter) A.Gray
Bonamia michauxii (Fernald & Schubert) K.A.Wilson
Breweria aquatica (Walter) A.Gray
Breweria michauxii Fernald & B.G.Schub.
Convolvulus aquaticus Walter
Convolvulus erianthus Willd. ex Spreng.

Flowers

In flower: May to June (from 74 flowering iNaturalist observations worldwide)

Characteristics

Growth habit: Forb/herb, Vine
Lifespan: Perennial
In the US and Canada: Lower 48 states: native

Photos

FlowerPhoto: Matt Berger, CC BY 4.0, from iNaturalist
FlowerPhoto: Marissa Calvert, CC BY 4.0, from iNaturalist
FlowerPhoto: Joseph Aubert, CC BY 4.0, from iNaturalist

More in Stylisma

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.