Xyris difformis

ClassificationMonocots
FamilyXyridaceae
Family (Traditional)Xyridaceae
GenusXyris
Species:Xyris difformis Chapm.
Common NameBog Yelloweyed Grass
Growth Habitforb
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Natural Area Presence: ObedWSR; Duration: Perennial; General Ecology: Aquatic; General Ecology: Mudflat; Growth Habit: forb; Moisture Requirements: Mesic-Hydric; Moisture Requirements: Hydric; Moisture Requirements: Wetland; Region of Origin: North America; Reproductive Phenology: August; Reproductive Phenology: September; Reproductive Phenology: October; Leaf Arrangement: alternate; Leaf Arrangement: basal; Leaf Arrangement: equitant; Leaf Complexity: simple; Leaf Dissection: 0; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaf Petiole Type: sessile; Leaf Rank: 2-ranked; Leaf Type: grass-like; Leaf Type: linear; Leaf Venation: parallel; Leaflet Margins: entire; Leaflet Number: 0; Anther Type: Basifixed; Base Flower Color: Yellow; Carpel Number/Pistil: 3; Fruit Dehiscence: Yes; Fruit Type: Capsule; Fruit Wet/Dry: Dry; Hypanthium Present: No; Inflorescence Position: terminal; Inflorescence Types: spike; Ovary Position: Superior; Overall Flower Symmetry: Actinomorphic; Ovules per Carpel: 13+; Perianth Present: Yes; Petal Fusion: No; Petal Fusion: Yes; Petal Number: 3; Pistil Complexity: Compound; Pistil Number: 1; Placentation Type: Parietal; Placentation Type: Marginal; Sepal Fusion: No; Sepal Fusion: Yes; Sepal Number: 3; Sexuality: monoclinous; Sporangium Arrangement: N/A; Stamen Number: 3; Stamen Number: 6; Tepal Fusion: No; Tepal Number: 0
C value 8
StatusNative; AGCP (OBL), EMP (OBL) (NWPL); TN[SNR] KY[S1?] (State Rank); G5 (Global Rank)
Specimen(s) View and Download Specimen Details »

** Not applicable or data not available.

Currently no photos are available for this plant.

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), Calloway (KY), Coffee (TN), Cumberland (TN), Franklin (TN), Morgan (TN), Rhea (TN)

Herbaria represented by specimen data listed below: APSC, BEREA, BOON, MDKY, UCHT

Range of years during which specimens were collected: 1997 - 2016

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.		 Herbarium &
Herbarium Name Used
UCHT037204 Rhea Tennessee
UCHT
Xyris difformis
APSC0055306 Cumberland Tennessee 16 Aug 2014 Devin Rodgers, Chris Mausert-Mooney, Taylor Hay.
396		 APSC
Xyris difformis
APSC0116759 Franklin Tennessee
APSC
Xyris difformis
UCHT035131 Cumberland Tennessee
UCHT
Xyris difformis
UCHT037203 Rhea Tennessee
UCHT
Xyris difformis
BEREA008766 Bath Kentucky
BEREA
Xyris difformis
BEREA008767 Calloway Kentucky
BEREA
Xyris difformis
APSC0055343 Cumberland Tennessee 28 Sep 2013 Devin Rodgers, Dwayne Estes, Chris Mausert Mooney
121		 APSC
Xyris difformis
APSC0054088 Morgan Tennessee 07 Sep 2006 Dwayne Estes with J. Beck & M. Stevenson
9530		 APSC
Xyris difformis
MDKY00006758 Bath Kentucky
MDKY
Xyris difformis
010514 Coffee Tennessee 31 Jul 1997 Anna Maleszyk
181		 BOON
Xyris difformis
APSC0116761 Franklin Tennessee
APSC
Xyris difformis
MDKY00006757 Bath Kentucky
MDKY
Xyris difformis
APSC0056464 Rhea Tennessee 30 Jul 2016 Zach Irick
Not shown		 APSC
Xyris difformis
APSC0116760 Franklin Tennessee
APSC
Xyris difformis
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