Myriophyllum aquaticum

ClassificationDicots
FamilyHaloragaceae
Family (Traditional)Haloragaceae
GenusMyriophyllum
Species:Myriophyllum aquaticum (Vell.) Verdc.
Common NameParrot Feather Watermilfoil
Growth Habitforb
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Invasive Rank: TN-IPC Established Threat; Natural Area Presence: GILES; Natural Area Presence: GRSM; Natural Area Presence: LC; Natural Area Presence: LGS; Duration: Perennial; General Ecology: Aquatic; Growth Habit: forb; Moisture Requirements: Hydric; Moisture Requirements: Wetland; Region of Origin: South America; Reproductive Phenology: April; Reproductive Phenology: May; Reproductive Phenology: June; Reproductive Phenology: July; Reproductive Phenology: August; Reproductive Phenology: September; Leaf Arrangement: whorled; Leaf Complexity: compound; Leaf Dissection: 1; Leaf Fragrance: No; Leaf Persistance: Evergreen; Leaf Petiole Type: petiolate; Leaf Type: broadleaf; Leaf Type: linear; Leaf Venation: pinnate; Leaflet Margins: entire; Leaflet Number: 16; Leaflet Number: 17; Leaflet Number: 18; Leaflet Number: 19; Base Flower Color: Green; Carpel Number/Pistil: 4; Fruit Dehiscence: Yes; Fruit Type: Schizocarp; Fruit Wet/Dry: Dry; Overall Flower Symmetry: Actinomorphic; Sporangium Arrangement: N/A; Stamen Number: 8
C value N/A
StatusNot Native; Invasive; AGCP (OBL), EMP (OBL) (NWPL); TN[SNA] KY[SNA] (State Rank); GNR (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
Enydria aquatica Enydria aquatica Vell.
Myriophyllum brasiliense Myriophyllum brasiliense Camb.
Myriophyllum proserpinacoides Myriophyllum proserpinacoides Gillies ex Hook. & Arn.

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: Casey (KY), Russell (KY), Trigg (KY), Benton (TN), Bledsoe (TN), Blount (TN), Cumberland (TN), DeKalb (TN), Dyer (TN), Fayette (TN), Fentress (TN), Franklin (TN), Giles (TN), Grundy (TN), Hamilton (TN), Haywood (TN), Loudon (TN), McNairy (TN), Marion (TN), Meigs (TN), Monroe (TN), Montgomery (TN), Morgan (TN), Perry (TN), Polk (TN), Rutherford (TN), Shelby (TN), Stewart (TN), Sullivan (TN)

Herbaria represented by specimen data listed below: APSC, BEREA, EKY, HTTU, KNK, MEM, TENN, UCHT, UOS

Range of years during which specimens were collected: 1963 - 2017

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
31234100458452 Russell Kentucky 28 Jun 1982 G. K. Johnson
EKY
Myriophyllum aquaticum
BEREA015076 Rutherford Tennessee
BEREA
Myriophyllum aquaticum
31973000013887 Trigg Kentucky
KNK
Myriophyllum aquaticum
TENN-V-0158636 Stewart Tennessee
TENN
Myriophyllum aquaticum
TENN-V-0158628 Meigs Tennessee
TENN
Myriophyllum aquaticum
TENN-V-0158634 Polk Tennessee
TENN
Myriophyllum aquaticum
TENN-V-0158626 Loudon Tennessee
TENN
Myriophyllum aquaticum
TENN-V-0158619 Dyer Tennessee
TENN
Myriophyllum aquaticum
TENN-V-0158616 Bledsoe Tennessee
TENN
Myriophyllum aquaticum
TENN-V-0158637 Sullivan Tennessee
TENN
Myriophyllum aquaticum
TENN-V-0158627 Loudon Tennessee
TENN
Myriophyllum aquaticum
TENN-V-0158630 Monroe Tennessee
TENN
Myriophyllum aquaticum
TENN-V-0158623 Grundy Tennessee
TENN
Myriophyllum aquaticum
TENN-V-0158621 Giles Tennessee
TENN
Myriophyllum aquaticum
31234100458445 Casey Kentucky 04 Aug 1988 Bruce Hoagland
513
EKY
Myriophyllum aquaticum
31234100458460 Trigg Kentucky 11 Aug 1980 Raymond Athey
4562
EKY
Myriophyllum aquaticum
BEREA015075 Casey Kentucky
BEREA
Myriophyllum aquaticum
31973000013886 Russell Kentucky
KNK
Myriophyllum aquaticum
TENN-V-0158695 Trigg Kentucky
TENN
Myriophyllum aquaticum
TENN-V-0158620 Fentress Tennessee
TENN
Myriophyllum aquaticum
TENN-V-0158631 Montgomery Tennessee
TENN
Myriophyllum aquaticum
TENN-V-0158629 Monroe Tennessee
TENN
Myriophyllum aquaticum
TENN-V-0158624 Grundy Tennessee
TENN
Myriophyllum aquaticum
TENN-V-0158632 Morgan Tennessee
TENN
Myriophyllum aquaticum
TENN-V-0158617 Bledsoe Tennessee
TENN
Myriophyllum aquaticum
TENN-V-0158622 Grundy Tennessee
TENN
Myriophyllum aquaticum
TENN-V-0158635 Rutherford Tennessee
TENN
Myriophyllum aquaticum
TENN-V-0158633 Perry Tennessee
TENN
Myriophyllum aquaticum
TENN-V-0158618 Blount Tennessee
TENN
Myriophyllum aquaticum
UCHT020904 Marion Tennessee
UCHT
Myriophyllum aquaticum
APSC0092938 Montgomery Tennessee 22 Sep 2017 Mason Brock
APSC
Myriophyllum aquaticum
APSC0012724 Montgomery Tennessee
APSC
Myriophyllum aquaticum
APSC0012723 Trigg Kentucky
APSC
Myriophyllum aquaticum
APSC0012725 Montgomery Tennessee
APSC
Myriophyllum aquaticum
APSC0012751 Giles Tennessee
APSC
Myriophyllum aquaticum
HTTU024668 Cumberland Tennessee
HTTU
Myriophyllum aquaticum
MEM000933 Fayette Tennessee 02 Nov 1963 T.L. Jackson
97
MEM
Myriophyllum aquaticum
MEM000932 Shelby Tennessee 29 Sep 1963 T.L. Jackson
93
MEM
Myriophyllum aquaticum
MEM008901 Shelby Tennessee 01 Sep 1971 John E. Thompson Jr.
461
MEM
Myriophyllum aquaticum
TENN-V-0158625 Haywood Tennessee
TENN
Myriophyllum aquaticum
UCHT020905 Marion Tennessee
UCHT
Myriophyllum brasiliense
APSC0015361 Benton Tennessee
APSC
Myriophyllum aquaticum
HTTU024666 Cumberland Tennessee
HTTU
Myriophyllum aquaticum
HTTU024667 Cumberland Tennessee
HTTU
Myriophyllum aquaticum
HTTU030700 DeKalb Tennessee
HTTU
Myriophyllum aquaticum
UCHT033504 Hamilton Tennessee
UCHT
Myriophyllum aquaticum
UOS03208 Franklin Tennessee 05 Jul 1998 Yolande M. Gottfried
UOS
Myriophyllum aquaticum
MEM020706 McNairy Tennessee 25 Apr 1981 Vernon Bates Jr.
2276
MEM
Myriophyllum aquaticum
MEM017085 Haywood Tennessee 28 Jun 1979 Vernon M. Bates Jr.
1569
MEM
Myriophyllum aquaticum
MEM014891 Shelby Tennessee 10 Nov 1977 Vernon M. Bates Jr.
264
MEM
Myriophyllum aquaticum
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Plant Photos

Myriophyllum aquaticum - Milo Pyne
Myriophyllum aquaticum - Milo Pyne
Myriophyllum aquaticum - Theo Witsell
Myriophyllum aquaticum - Theo Witsell
Myriophyllum aquaticum - Theo Witsell
Myriophyllum aquaticum - Theo Witsell
Myriophyllum aquaticum - Theo Witsell
Myriophyllum aquaticum - Theo Witsell