Najas gracillima

ClassificationMonocots
FamilyHydrocharitaceae
Family (Traditional)Hydrocharitaceae
GenusNajas
Species:Najas gracillima (A. Braun ex Engelm.) Magnus
Common NameSlender Waternymph; Slender Naiad
Growth Habitforb
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Duration: Annual; General Ecology: Aquatic; Growth Habit: forb; Moisture Requirements: Hydric; Moisture Requirements: Wetland; Region of Origin: North America; Reproductive Phenology: July; Reproductive Phenology: August; Reproductive Phenology: September; Reproductive Phenology: October; Reproductive Phenology: November; Leaf Arrangement: basal; Leaf Arrangement: floating; Leaf Complexity: simple; Leaf Dissection: 0; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaf Petiole Type: sessile; Leaf Petiole Type: subsessile; Leaf Type: grass-like; Leaf Type: linear; Leaf Venation: one-veined; Leaflet Margins: dentate; Leaflet Number: 0; Base Flower Color: Brown (incl. Maroon); Base Flower Color: Green; Carpel Number/Pistil: 1; Fruit Dehiscence: Yes; Fruit Type: Achene; Fruit Wet/Dry: Dry; Overall Flower Symmetry: Actinomorphic; Sporangium Arrangement: N/A; Stamen Number: 1
C value 7
StatusNative; AGCP (OBL), EMP (OBL) (NWPL); TN[SNR] KY[S2S3] (State Rank); G5? (Global Rank)
Specimen(s) View and Download Specimen Details »

** Not applicable or data not available.
Featured Plant Photo

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

No synonyms exist for this species.

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: Breckinridge (KY), Caldwell (KY), Floyd (KY), Graves (KY), Jefferson (KY), Muhlenberg (KY), Powell (KY), Trigg (KY), Cumberland (TN), Greene (TN), Henderson (TN), Jefferson (TN), Morgan (TN)

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

Range of years during which specimens were collected: -

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.		 Herbarium &
Herbarium Name Used
31234100148277 Powell Kentucky Deborah White
 EKY
Najas gracillima
31234100756079 Powell Kentucky D. White
 EKY
Najas gracillima
TENN-V-0013766 Henderson Tennessee
TENN
Najas gracillima
APSC0038476 Trigg Kentucky
APSC
Najas gracillima
HTTU013106 Cumberland Tennessee
HTTU
Najas gracillima
MEM006065 Graves Kentucky Raymond Athey
 MEM
Najas gracillima
APSC0110796 Caldwell Kentucky
APSC
Najas gracillima
APSC0053814 Morgan Tennessee
APSC
Najas gracillima
HTTU013107 Cumberland Tennessee
HTTU
Najas gracillima
HTTU013105 Cumberland Tennessee
HTTU
Najas gracillima
HTTU013108 Cumberland Tennessee
HTTU
Najas gracillima
APSC0110795 Jefferson Kentucky
APSC
Najas gracillima
APSC0108465 Powell Kentucky
APSC
Najas gracillima
APSC0110793 Caldwell Kentucky
APSC
Najas gracillima
TENN-V-0013764 Cumberland Tennessee
TENN
Najas gracillima
TENN-V-0013767 Henderson Tennessee
TENN
Najas gracillima
APSC0108464 Muhlenberg Kentucky
APSC
Najas gracillima
APSC0110794 Jefferson Kentucky
APSC
Najas gracillima
APSC0110811 Breckinridge Kentucky
APSC
Najas gracillima
31973000016405 Powell Kentucky
KNK
Najas gracillima
TENN-V-0013765 Greene Tennessee
TENN
Najas gracillima
APSC0108291 Floyd Kentucky
APSC
Najas gracillima
HTTU013104 Cumberland Tennessee
HTTU
Najas gracillima
TENN-V-0013768 Jefferson Tennessee
TENN
Najas gracillima
APSC0038477 Trigg Kentucky
APSC
Najas gracillima
APSC0108290 Trigg Kentucky
APSC
Najas gracillima
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Plant Photos

Najas gracillima - Dwayne Estes
Najas gracillima - Dwayne Estes