Isoetes engelmannii

ClassificationPteridophytes
FamilyIsoetaceae
Family (Traditional)Isoetaceae
GenusIsoetes
Species:Isoetes engelmannii A. Braun
Common NameAppalachian Quillwort
Growth Habitfern ally
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Natural Area Presence: BE; Natural Area Presence: GRSM; Natural Area Presence: LGS; Natural Area Presence: RCSP; Natural Area Presence: WOLF; Duration: Perennial; General Ecology: Aquatic; General Ecology: Mudflat; Growth Habit: fern ally; Moisture Requirements: Hydric; Moisture Requirements: Wetland; Region of Origin: North America; Reproductive Phenology: May; Reproductive Phenology: June; Reproductive Phenology: July; Reproductive Phenology: August; Reproductive Phenology: September; Reproductive Phenology: October; Leaf Arrangement: basal; Leaf Complexity: simple; Leaf Dissection: 0; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaf Petiole Type: sessile; Leaf Rank: N/A; Leaf Type: grass-like; Leaf Venation: one-veined; Leaflet Margins: entire; Leaflet Number: 0; Anther Type: N/A; Carpel Number/Pistil: N/A; Fruit Complexity: N/A; Fruit Type: N/A; Fruit Wet/Dry: N/A; Hypanthium Present: No; Inflorescence Position: N/A; Inflorescence Types: N/A; Ovary Position: N/A; Overall Flower Symmetry: N/A; Ovules per Carpel: N/A; Perianth Present: No; Petal Fusion: N/A; Petal Number: N/A; Pistil Complexity: N/A; Pistil Number: N/A; Placentation Type: N/A; Sepal Fusion: N/A; Sepal Number: N/A; Sexuality: N/A; Sporangium Arrangement: upright panicle; Stamen Number: N/A; Tepal Number: N/A
C value 10
StatusNative; AGCP (OBL), EMP (OBL) (NWPL); TN[SNR] KY[S3S4] (State Rank); G4 (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: Bath (KY), Carter (KY), Clinton (KY), Harlan (KY), Leslie (KY), Letcher (KY), Rowan (KY), Coffee (TN), Polk (TN), Putnam (TN), Robertson (TN)

Herbaria represented by specimen data listed below: KNK, MDKY, UCHT

Range of years during which specimens were collected: 1988 - 1998

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.		 Herbarium &
Herbarium Name Used
31973000004312 Rowan Kentucky 03 Aug 1988 Risk, Allen
1803		 KNK
Isoetes engelmannii
31973000004314 Robertson Tennessee 03 May 1989 Kral, Robert
76102		 KNK
Isoetes engelmannii
31973000004309 Rowan Kentucky 13 May 1998 Risk, Allen
10492		 KNK
Isoetes engelmannii
31973000004311 Clinton Kentucky 15 Apr 1994 Thieret, John
57358		 KNK
Isoetes engelmannii
31973000004313 Rowan Kentucky 03 Aug 1988 Risk, Allen
1822		 KNK
Isoetes engelmannii
MDKY00001711 Rowan Kentucky
MDKY
Isoetes engelmannii
MDKY00001702 Bath Kentucky
MDKY
Isoetes engelmannii
MDKY00001710 Rowan Kentucky
MDKY
Isoetes engelmannii
MDKY00001705 Bath Kentucky
MDKY
Isoetes engelmannii
MDKY00001708 Rowan Kentucky
MDKY
Isoetes engelmannii
MDKY00001714 Rowan Kentucky
MDKY
Isoetes engelmannii
MDKY00001712 Rowan Kentucky
MDKY
Isoetes engelmannii
MDKY00001717 Carter Kentucky
MDKY
Isoetes engelmannii
MDKY00001720 Leslie Kentucky
MDKY
Isoetes engelmannii
MDKY00001704 Bath Kentucky
MDKY
Isoetes engelmannii
MDKY00001713 Rowan Kentucky
MDKY
Isoetes engelmannii
MDKY00001718 Harlan Kentucky
MDKY
Isoetes engelmannii
MDKY00001709 Rowan Kentucky
MDKY
Isoetes engelmannii
MDKY00001716 Rowan Kentucky
MDKY
Isoetes engelmannii
MDKY00001719 Letcher Kentucky
MDKY
Isoetes engelmannii
MDKY00001706 Bath Kentucky
MDKY
Isoetes engelmannii
MDKY00001707 Rowan Kentucky
MDKY
Isoetes engelmannii
MDKY00001715 Rowan Kentucky
MDKY
Isoetes engelmannii
MDKY00001703 Bath Kentucky
MDKY
Isoetes engelmannii
UCHT006104 Coffee Tennessee
UCHT
Isoetes engelmannii
UCHT006089 Polk Tennessee
UCHT
Isoetes engelmannii
UCHT006105 Putnam Tennessee
UCHT
Isoetes engelmannii
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Plant Photos

Isoetes engelmannii - Tara Littlefield
Isoetes engelmannii - Tara Littlefield