Bacopa rotundifolia

ClassificationDicots
FamilyPlantaginaceae
Family (Traditional)Scrophulariaceae
GenusBacopa
SpeciesBacopa rotundifolia (Michx.) Wettst.
Common Namedisk waterhyssop
Growth Habitforb
Plant NotesHabit: forb; Woody/Herbaceous: herbaceous; Terrestrial/Aquatic: Terrestrial;
Leaf Arrangement: Opposite; Simple/Compound: Simple; Leaf Complexity: 0; Leaf Type: Broadleaf;
Hypanthium: No; Perianth Absent: No; Flower Color2: White; Fruit Color: ;
C value
StatusNative; AGCP (OBL), EMP (OBL) (NWPL); TN[SNR] KY[S3S4] (State Rank); G5 (Global Rank)
Specimen(s) View and Download Specimen Details »

** Not applicable or data not available.

Species Distribution Map

This species has been reported in the counties highlighted in the interactive distribution map below. Click on a county to display the its name. Click the question mark icon () to view additional information about the ecoregions shown. In the map legend, there are links to toggle the visibility of the ecoregions and/or their labels. In addition, clicking on an ecoregion name will highlight that region on the map.

  • State Boundaries
  • Counties
  • Counties - Species Present
Ecoregions
  • Southeastern Plains
    • Blackland Prarie
  • Blue Ridge Mountains
  • Ridge and Valley
  • Cumberland Plateau
  • Cumberland Mountains
  • Allegheny Plateau
  • Interior Plateau
    • Bluegrass Region
    • Nashville Basin
    • Pennyroyal Karst Plain
    • Western Highland Rim
    • Eastern Highland Rim

Synonyms

SynonymFull Citation
Bacopa nobsiana Bacopa nobsiana Mason
Bacopa simulans Bacopa simulans Fern.
Bramia rotundifolia Bramia rotundifolia (Michx.) Britt.
Hydranthelium rotundifolium Hydranthelium rotundifolium (Michx.) Pennell
Macuillamia rotundifolia Macuillamia rotundifolia (Michx.) Raf.

Specimens and Distribution

This species has been reported in the following counties by the herbaria listed. An overview of the individual specimens are provided in the table that follows. Click on the accession number to view details; click on column headers to sort.

Counties included on distribution map: Ballard (KY), Breckinridge (KY), Christian (KY), Crittenden (KY), Hardin (KY), Jefferson (KY), Livingston (KY), Logan (KY), Lyon (KY), Todd (KY), Trigg (KY), Warren (KY), Cheatham (TN), Fayette (TN), Hardeman (TN), Haywood (TN), Henry (TN), Humphreys (TN), Montgomery (TN), Rutherford (TN), Shelby (TN), Wayne (TN)

Herbaria represented by specimen data listed below: APSC, EKY, TENN

Range of years during which specimens were collected: 1944 - 2010

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
31234100661527 Crittenden Kentucky 22 Jun 1974 Raymond Athey
2810
EKY
Bacopa rotundifolia
31234100661535 Hardin Kentucky 24 Aug 1980 Ray Cranfill
5370
EKY
Bacopa rotundifolia
TENN-V-0195966 Montgomery Tennessee
TENN
Bacopa rotundifolia
TENN-V-0195968 Shelby Tennessee
TENN
Bacopa rotundifolia
TENN-V-0196160 Christian Kentucky
TENN
Bacopa rotundifolia
TENN-V-0196161 Crittenden Kentucky
TENN
Bacopa rotundifolia
TENN-V-0195967 Rutherford Tennessee
TENN
Bacopa rotundifolia
TENN-V-0195957 Haywood Tennessee
TENN
Bacopa rotundifolia
TENN-V-0195961 Henry Tennessee
TENN
Bacopa rotundifolia
TENN-V-0195960 Haywood Tennessee
TENN
Bacopa rotundifolia
TENN-V-0195958 Fayette Tennessee
TENN
Bacopa rotundifolia
TENN-V-0195956 Cheatham Tennessee
TENN
Bacopa rotundifolia
TENN-V-0195959 Hardeman Tennessee
TENN
Bacopa rotundifolia
APSC0002792 Humphreys Tennessee 24 Jul 2001 Stephanie M Gunn and EW Chester
214
APSC
Bacopa rotundifolia
31234100733912 Ballard Kentucky 17 Aug 1983 Marc Evans
7990
EKY
Bacopa rotundifolia
TENN-V-0195969 Wayne Tennessee
TENN
Bacopa rotundifolia
TENN-V-0195964 Montgomery Tennessee
TENN
Bacopa rotundifolia
TENN-V-0195965 Montgomery Tennessee
TENN
Bacopa rotundifolia
TENN-V-0195962 Henry Tennessee
TENN
Bacopa rotundifolia
TENN-V-0195963 Humphreys Tennessee
TENN
Bacopa rotundifolia
TENN-V-0196162 Warren Kentucky
TENN
Bacopa rotundifolia
APSC0078273 Breckinridge Kentucky 17 Jul 1971
APSC
Bacopa rotundifolia
APSC0002795 Montgomery Tennessee 26 Aug 1980 EW Chester
4447
APSC
Bacopa rotundifolia
APSC0002796 Montgomery Tennessee 18 Jun 1944 RE Shanks
2763
APSC
Bacopa rotundifolia
APSC0088100 Livingston Kentucky 20 Aug 1957 Kellerman
APSC
Bacopa rotundifolia
APSC0088103 Todd Kentucky
APSC
Bacopa rotundifolia
APSC0002791 Montgomery Tennessee 27 Jun 1967 Jonathan Wert
S.N.
APSC
Bacopa rotundifolia
APSC0002800 Montgomery Tennessee 21 Jul 1972 EW Chester
2532
APSC
Bacopa rotundifolia
APSC0073865 Hardin Kentucky
APSC
Bacopa rotundifolia
APSC0078274 Ballard Kentucky
APSC
Bacopa rotundifolia
APSC0002801 Christian Kentucky 11 Aug 1979 EW Chester
4181
APSC
Bacopa rotundifolia
APSC0002788 Trigg Kentucky 08 Aug 1986 EW Chester and John Quick
86-786
APSC
Bacopa rotundifolia
APSC0088105 Jefferson Kentucky
APSC
Bacopa rotundifolia
APSC0078276 Warren Kentucky 18 Oct 1968 Kenneth Nicely
APSC
Bacopa rotundifolia
APSC0088106 Jefferson Kentucky
APSC
Bacopa rotundifolia
APSC0088107 Hardin Kentucky
APSC
Bacopa rotundifolia
APSC0088104 Logan Kentucky 04 Jul 1957
APSC
Bacopa rotundifolia
APSC0088102 Todd Kentucky
APSC
Bacopa rotundifolia
APSC0002802 Wayne Tennessee 07 Oct 2010 David H. Webb
7511
APSC
Bacopa rotundifolia
APSC0002799 Montgomery Tennessee 10 Jun 1975 EW Chester
2972
APSC
Bacopa rotundifolia
APSC0002797 Montgomery Tennessee 15 Jul 1949 Alfred Clebsch and Herman Silva
796
APSC
Bacopa rotundifolia
APSC0078278 Ballard Kentucky
APSC
Bacopa rotundifolia
APSC0002789 Lyon Kentucky 20 Jul 1987 EW Chester
87-525
APSC
Bacopa rotundifolia
APSC0101020 Warren Kentucky
APSC
Bacopa rotundifolia
APSC0002790 Trigg Kentucky 10 Jun 1988 EW Chester and David Webb
88-90
APSC
Bacopa rotundifolia
APSC0002805 Henry Tennessee 29 Oct 2010 David H. Webb
7629
APSC
Bacopa rotundifolia
APSC0002793 Montgomery Tennessee 13 Jul 1998 EW Chester
13421
APSC
Bacopa rotundifolia
APSC0078277 Warren Kentucky 15 Aug 1978
APSC
Bacopa rotundifolia
APSC0078275 Warren Kentucky 23 Jul 1968 Howard Elmore
APSC
Bacopa rotundifolia
APSC0002794 Henry Tennessee 02 Aug 1990 EW Chester
90-352
APSC
Bacopa rotundifolia
APSC0002798 Montgomery Tennessee 15 Jul 1949 Herman Silva and Alfred Clebsch
153-15-3
APSC
Bacopa rotundifolia
APSC0088101 Crittenden Kentucky
APSC
Bacopa rotundifolia
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Plant Photos

Bacopa rotundifolia - Theo Witsell
Bacopa rotundifolia - Theo Witsell
Bacopa rotundifolia - Theo Witsell
Bacopa rotundifolia - Theo Witsell