Bacopa monnieri

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Bacopa monnieri
Baco monn.jpg
Photo by Wayne Matchett,
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Order: Scrophulariales
Family: Scrophulariaceae
Genus: Bacopa
Species: B. monnieri
Binomial name
Bacopa monnieri
(L.) Pennell
BACO MONN dist.jpg
Natural range of Bacopa monnieri from USDA NRCS Plants Database.

Common names: Herb of grace; Monnier's water-hyssop

Taxonomic notes

Synonym: Bramia monnieri (Linnaeus) Drake [1]


Baccharis genus are dioecious, glabrous shrubs. They are rarely small trees. The leaves are alternate, fleshy, toothed or entire. The heads pedunculated or sessile, most of the time in 3-5 glomerules. The involucres are cylindric, 4-5 mm long, 2.5-3.5 mm broad. The bracts are imbricate, sometimes purplish in color, and obtuse. The flowers are discoid and yellowish in color. The nutlets are tan in color, lustrous, cylindric, 10-ribbed, glabrous, and 1.2-1.5 mm long. The pappus bristles are white to tan in color. The capillary is 7-10 mm long.[2]

Specifically for B. monnieri, the plant has no smell. The erect portion of the stem is 1-3 dm tall and is glabrous. The leaves are obovate in shape, 6-17 mm long, 3-8 mm wide, and only having a single vein. It is rare to see 2-3 veins. The internodes are longer than the leaves. The pedicel is longer than the subtending leaf. The bractlets are present. The largest sepals grow up to 5-7 mm long, and 3-4 mm wide. The corolla is white in color and sometimes tinged with blue. The corolla is rotate to regular, growing up to 8-10 mm long. The lobes grow to the same size as the tube. There are 4 stamens which are subequal. Flowers from April to frost.[2]




In the Coastal Plain in Florida, B. monnieri has been found in shallow water of a shaded ditch; with Eleocharis flavescens in muck of small floating island in a ditch; sand fill near a salt marsh; and shallow brackish water.[3]


B. monnieri has been observed to flower in June and July and fruit in June.[3][4]


The following Hymenoptera families and species were observed visiting flowers of Bacopa monnieri at Archbold Biological Station[5]:

Halictidae: Lasioglossum pectoralis, L. puteulanum

Megachilidae: Megachile brevis pseudobrevis, M. georgica

Conservation and management

Cultivation and restoration

Photo Gallery

References and notes

  1. Weakley, A. S. (2015). Flora of the Southern and Mid-Atlantic States. Chapel Hill, NC, University of North Carolina Herbarium.
  2. 2.0 2.1 Radford, Albert E., Harry E. Ahles, and C. Ritchie Bell. Manual of the Vascular Flora of the Carolinas. 1964, 1968. The University of North Carolina Press. 938. Print.
  3. 3.0 3.1 Florida State University Robert K. Godfrey Herbarium database. URL: Last accessed: July 2015. Collectors: Loran C. Anderson, Karen MacClendon, Travis MacClendon, R.A. Norris, P.L. Redfearn Jr., Nia Wellendorf. States and Counties: Florida: Calhoun, Jefferson, Taylor, Wakulla. Compiled by Tall Timbers Research Station and Land Conservancy.
  4. Nelson, G. PanFlora: Plant data for the eastern United States with emphasis on the Southeastern Coastal Plains, Florida, and the Florida Panhandle. Accessed: 7 DEC 2016
  5. Deyrup, M.A. 2015. Database of observations of Hymenoptera visitations to flowers of plants on Archbold Biological Station, Florida, USA.