*Hydrocotyle bonariensis Lamarck. Common name: Dune Pennywort, Sombrerillo. Phenology: Apr-Sep. Habitat: Beaches, dunes, and moist sandy areas. Distribution: Widespread in Mexico, South and Central America, and now occurring north in North America to the Southeastern Coastal Plain, se. VA to s. FL and TX and s. AR. This species was not included in Darby (1855), Chapman (1887), or Mohr (1901); Small (1913) gave "in waste grounds and on ballast" as habitat. This suggests the likelihood that H. bonariensis is adventive from South America, and indeed it was first named from collections from South America (the epithet 'bonariensis means 'of Buenos Aires').
Origin/Endemic status: South America
Synonymy ⓘ: = Ar, Fl7, FNA13, GW2, K4, MC, Meso4.1, Mex, RAB, S, S13, Tx, Va, WH3; = n/a — C, F, G. Basionym: Hydrocotyle bonariensis Lam. 1789
Links to other floras: = Hydrocotyle bonariensis - FNA13
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Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: FACW
- Eastern Mountains and Piedmont: FACW
- Great Plains: FACW
Heliophily ⓘ: 9
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© Keith Bradley | Original Image ⭷
© Keith Bradley | Original Image ⭷
© Aidan Campos source | Original Image ⭷
© Bruce A. Sorrie | Original Image ⭷
© Gary P. Fleming | Original Image ⭷
© Aidan Campos source | Original Image ⭷Feedback
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Horticultural Information
Intro: Creeping, mat-forming perennial of beaches, dunes and other moist sandy areas.
Stems: Stems fleshy, branched, rooting at nodes, smooth.
Leaves: Leaves alternate, on long petioles that attach to center of leaf, round, 1-4 in. wide, blunt-toothed or scalloped, shiny and somewhat succulent.
Inforescence:
Flowers: Flowers in rounded-pyramidal, compound umbels (2-3 in. wide) at ends of branches; white to greenish-white; tiny; with 5 minute, oval petals.
Fruits:
Comments:
Height: 6-10 in.
plant sale text:
bloom table text:
description: Creeping, mat-forming perennial of beaches, dunes and other moist sandy areas.
stems: Stems fleshy, branched, rooting at nodes, smooth.
leaves: Leaves alternate, on long petioles that attach to center of leaf, round, 1-4 in. wide, blunt-toothed or scalloped, shiny and somewhat succulent.
inflorescence:
flowers: Flowers in rounded-pyramidal, compound umbels (2-3 in. wide) at ends of branches; white to greenish-white; tiny; with 5 minute, oval petals.
fruits:
comments:
cultural notes:
germination code:
native range:
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