Amaranthus retroflexus

ClassificationDicots
FamilyAmaranthaceae
Family (Traditional)Amaranthaceae
GenusAmaranthus
Species:Amaranthus retroflexus L.
Common NameRedroot Amaranth
Growth Habitforb
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Natural Area Presence: GRSM; Duration: Annual; General Ecology: Terrestrial; Growth Habit: forb; 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: alternate; Leaf Complexity: simple; Leaf Dissection: 0; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaf Petiole Type: petiolate; Leaf Type: broadleaf; Leaf Venation: pinnate; Leaflet Margins: entire; Leaflet Number: 0; Anther Type: Dorsifixed; Base Flower Color: Green; Carpel Number/Pistil: 3; Fruit Dehiscence: Yes; Fruit Type: Utricle; Fruit Wet/Dry: Dry; Hypanthium Present: No; Inflorescence Position: axillary; Inflorescence Position: terminal; Inflorescence Types: panicle/thyrse; Ovary Position: Superior; Overall Flower Symmetry: Actinomorphic; Ovules per Carpel: 1; Perianth Present: Yes; Petal Fusion: No; Petal Number: 0; Pistil Complexity: Compound; Pistil Number: 1; Placentation Type: Basal; Sepal Fusion: No; Sepal Number: 5; Sexuality: monoecious; Sporangium Arrangement: N/A; Stamen Number: 3; Stamen Number: 4; Stamen Number: 5; Tepal Fusion: No; Tepal Number: 5
C value 0
StatusNative; AGCP (FAC), EMP (FACU) (NWPL); TN[SNA] KY[SNA] (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

SynonymFull Citation
Amaranthus retroflexus var. salicifolius Amaranthus retroflexus var. salicifolius I.M. Johnston

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), Campbell (KY), Fayette (KY), Greenup (KY), Hickman (KY), Kenton (KY), McCracken (KY), Madison (KY), Rowan (KY), Benton (TN), Davidson (TN), Haywood (TN), Jackson (TN), Knox (TN), Macon (TN), Rutherford (TN), Shelby (TN)

Herbaria represented by specimen data listed below: BEREA, EKY, HTTU, KNK, MDKY, SWMT, TENN, VDB

Range of years during which specimens were collected: 1945 - 1993

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
31234100193588 Fayette Kentucky Danny Husband
241
EKY
Amaranthus retroflexus
MDKY00007111 Rowan Kentucky
MDKY
Amaranthus retroflexus
MDKY00007112 Greenup Kentucky
MDKY
Amaranthus retroflexus
BRIT68454 Davidson Tennessee 30 Aug 1973 R. Kral
51498
VDB
Amaranthus retroflexus
BRIT68451 Rutherford Tennessee 24 Sep 1979 R. Kral
64386
VDB
Amaranthus retroflexus
SWMT02797 Benton Tennessee 10 Jun 1984 Brent Hedges
36
SWMT
Amaranthus retroflexus
31234100193570 Madison Kentucky 23 Jul 1977 J. Stuart Lassetter
2659
EKY
Amaranthus retroflexus
31973000004940 Campbell Kentucky 22 Aug 1981 Buddell, George
381
KNK
Amaranthus retroflexus
TENN-V-0090506 Knox Tennessee
TENN
Amaranthus retroflexus
BEREA001420 Campbell Kentucky
BEREA
Amaranthus retroflexus
TENN-V-0090505 Jackson Tennessee
TENN
Amaranthus retroflexus
HTTU008158 Kentucky
HTTU
Amaranthus retroflexus
31973000004939 Campbell Kentucky 04 Oct 1993 Abdel-Nabi, Hadeel
45
KNK
Amaranthus retroflexus
BRIT68452 Rutherford Tennessee 25 May 1972 Ken E. Rogers
8211
VDB
Amaranthus retroflexus
BEREA001418 Calloway Kentucky
BEREA
Amaranthus retroflexus
31973000004938 Kenton Kentucky 11 Aug 1978 Applegarth, Patrick
470
KNK
Amaranthus retroflexus
MDKY00007117 Rowan Kentucky
MDKY
Amaranthus retroflexus
TENN-V-0090507 Macon Tennessee
TENN
Amaranthus retroflexus
TENN-V-0090508 Rutherford Tennessee
TENN
Amaranthus retroflexus
HTTU001101 Hickman Kentucky
HTTU
Amaranthus retroflexus
31234100193562 Bath Kentucky 27 Jul 1984 Julian Campbell
691
EKY
Amaranthus retroflexus
31234100193596 Madison Kentucky 11 Jul 1982 Ronald L. Jones
3744
EKY
Amaranthus retroflexus
MDKY00007113 Rowan Kentucky
MDKY
Amaranthus retroflexus
TENN-V-0090509 Shelby Tennessee
TENN
Amaranthus retroflexus
MDKY00007118 Fayette Kentucky
MDKY
Amaranthus retroflexus
MDKY00007116 Rowan Kentucky
MDKY
Amaranthus retroflexus
MDKY00007114 Rowan Kentucky
MDKY
Amaranthus retroflexus
BRIT68453 Rutherford Tennessee 29 Jun 1945 George Davis
8201
VDB
Amaranthus retroflexus
TENN-V-0090504 Haywood Tennessee
TENN
Amaranthus retroflexus
HTTU001102 Kentucky
HTTU
Amaranthus retroflexus
BRIT555010 McCracken Kentucky 30 Sep 1982 Raymond Athey
4755
VDB
Amaranthus retroflexus
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