Rhododendron calendulaceum

ClassificationDicots
FamilyEricaceae
Family (Traditional)Ericaceae
GenusRhododendron
Species:Rhododendron calendulaceum (Michx.) Torr.
Common NameFlame Azalea
Growth Habitshrub
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Woody; Natural Area Presence: BE; Natural Area Presence: BEH; Natural Area Presence: BFM; Natural Area Presence: FG; Natural Area Presence: GM; Natural Area Presence: GRSM; Natural Area Presence: LCW; Natural Area Presence: NRG; Natural Area Presence: RCSP; Duration: Perennial; General Ecology: Terrestrial; Growth Habit: shrub; Moisture Requirements: Sub-xeric; Moisture Requirements: Dry-mesic; Moisture Requirements: Mesic; Region of Origin: North America; Reproductive Phenology: May; Reproductive Phenology: June; Reproductive Phenology: July; Reproductive Phenology: August; Reproductive Phenology: September; 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: ciliate; Leaflet Margins: entire; Leaflet Number: 0; Base Flower Color: Orange; Carpel Number/Pistil: 5; Fruit Dehiscence: Yes; Fruit Type: Capsule; Fruit Wet/Dry: Dry; Hypanthium Present: No; Inflorescence Position: terminal; Inflorescence Types: corymb/cyme/umbel; Ovary Position: Superior; Overall Flower Symmetry: Zygomorphic; Ovules per Carpel: 13+; Perianth Present: Yes; Petal Fusion: Yes; Petal Number: 5; Pistil Complexity: Compound; Pistil Number: 1; Placentation Type: Axillary; Sepal Fusion: Yes; Sepal Number: 5; Sexuality: monoclinous; Sporangium Arrangement: N/A; Stamen Number: 5; Tepal Fusion: No; Tepal Number: 0
C value 6
StatusNative; TN[SNR] KY[S4] (State Rank); G5 (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
Azalea calendulaceum var. crocea Azalea calendulaceum var. crocea Michx.

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: Bell (KY), Breathitt (KY), Floyd (KY), Harlan (KY), Jefferson (KY), Johnson (KY), Knott (KY), Leslie (KY), Letcher (KY), Magoffin (KY), Morgan (KY), Owsley (KY), Perry (KY), Rowan (KY), Wolfe (KY), Blount (TN), Bradley (TN), Carter (TN), Cocke (TN), Cumberland (TN), Davidson (TN), DeKalb (TN), Fentress (TN), Franklin (TN), Greene (TN), Hamilton (TN), Hawkins (TN), Johnson (TN), McMinn (TN), McNairy (TN), Monroe (TN), Polk (TN), Putnam (TN), Roane (TN), Sevier (TN), Sullivan (TN), Unicoi (TN), Washington (TN)

Herbaria represented by specimen data listed below: APSC, BEREA, EKY, ETSU, HTTU, MTSU, TENN, UCHT

Range of years during which specimens were collected: 1963 - 2013

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
31234100407194 Cumberland Tennessee 29 Jul 1976 Henry R. DeSelm
6184
EKY
Rhododendron calendulaceum
31234100405073 Letcher Kentucky 15 May 1978 Jeffrey D. Sole
1
EKY
Rhododendron calendulaceum
31234100405156 Tennessee 30 Apr 1977 Clint Kellner
EKY
Rhododendron calendulaceum
31234100405164 McNairy Tennessee 18 Apr 1981 Vernon Bates
2175
EKY
Rhododendron calendulaceum
31234100405024 Leslie Kentucky 18 May 1968 Lynn Garrison
EKY
Rhododendron calendulaceum
31234100405172 Monroe Tennessee 25 Jun 1979 B. Eugene Wofford
79-171
EKY
Rhododendron calendulaceum
31234100405040 Perry Kentucky 29 Jun 1986 Earlis Thornsberry
118
EKY
Rhododendron calendulaceum
31234100405016 Harlan Kentucky 13 Sep 1998 Ronald L. Jones
8878
EKY
Rhododendron calendulaceum
31234100405131 Rowan Kentucky 01 Jun 1995 Kathryn Huie-Netting
38
EKY
Rhododendron calendulaceum
31234100405032 Perry Kentucky 13 Jun 1979 Richard H. Hannan
2264
EKY
Rhododendron calendulaceum
31234100405123 Perry Kentucky 01 Jan 1995 Morris Elsea
15
EKY
Rhododendron calendulaceum
31234100405057 Harlan Kentucky 26 Jun 2005 Amy V. McIntosh
1085
EKY
Rhododendron calendulaceum
BEREA012749 Sevier Tennessee
BEREA
Rhododendron calendulaceum
BEREA012747 Johnson Kentucky
BEREA
Rhododendron calendulaceum
BEREA012746 Owsley Kentucky
BEREA
Rhododendron calendulaceum
N/A Johnson Tennessee 27 May 2013 Frosty Levy
ETSU
Rhododendron calendulaceum
ETSU008335 Carter Tennessee
ETSU
Rhododendron calendulaceum
TENN-V-0166088 Blount Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166107 McMinn Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166087 Blount Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166120 Unicoi Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166105 Johnson Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166111 Polk Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166090 Blount Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166096 Cocke Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166097 Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166093 Blount Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166122 Washington Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166104 Johnson Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166103 Hawkins Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166086 Blount Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166121 Unicoi Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166110 Polk Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166102 Hawkins Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166118 Unicoi Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166119 Unicoi Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166099 Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166091 Blount Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166095 Carter Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166092 Blount Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166109 Polk Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166115 Sevier Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166101 Greene Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166098 Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166112 Polk Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166113 Polk Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166108 Monroe Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166114 Sevier Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166089 Blount Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166094 Carter Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166116 Sevier Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166117 Sullivan Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166100 Fentress Tennessee
TENN
Rhododendron calendulaceum
TENN-V-0166106 Johnson Tennessee
TENN
Rhododendron calendulaceum
UCHT022095 Tennessee
UCHT
Rhododendron calendulaceum
UCHT022088 Tennessee
UCHT
Rhododendron calendulaceum
UCHT022098 Tennessee
UCHT
Rhododendron calendulaceum
UCHT022109 Tennessee
UCHT
Rhododendron calendulaceum
UCHT022108 Tennessee
UCHT
Rhododendron calendulaceum
UCHT022101 Monroe Tennessee
UCHT
Rhododendron calendulaceum
UCHT022089 Tennessee
UCHT
Rhododendron calendulaceum
UCHT022104 DeKalb Tennessee
UCHT
Rhododendron calendulaceum
UCHT022110 Hamilton Tennessee
UCHT
Rhododendron calendulaceum
UCHT022097 Tennessee
UCHT
Rhododendron calendulaceum
UCHT022093 Tennessee
UCHT
Rhododendron calendulaceum
UCHT022106 Polk Tennessee
UCHT
Rhododendron calendulaceum
UCHT022096 Tennessee
UCHT
Rhododendron calendulaceum
UCHT022107 Tennessee
UCHT
Rhododendron calendulaceum
UCHT022100 Monroe Tennessee
UCHT
Rhododendron calendulaceum
UCHT007877 Blount Tennessee 01 May 1964 R. Dale Thomas
32814
UCHT
Rhododendron calendulaceum
UCHT022094 Monroe Tennessee
UCHT
Rhododendron calendulaceum
UCHT022105 DeKalb Tennessee
UCHT
Rhododendron calendulaceum
UCHT022099 Bradley Tennessee
UCHT
Rhododendron calendulaceum
UCHT022090 Tennessee
UCHT
Rhododendron calendulaceum
UCHT022091 Tennessee
UCHT
Rhododendron calendulaceum
APSC0121149 Wolfe Kentucky
APSC
Rhododendron calendulaceum
APSC0015506 Blount Tennessee
APSC
Rhododendron calendulaceum
APSC0086414 Breathitt Kentucky
APSC
Rhododendron calendulaceum
APSC0121150 Jefferson Kentucky
APSC
Rhododendron calendulaceum
APSC0077656 Breathitt Kentucky
APSC
Rhododendron calendulaceum
APSC0084787 Floyd Kentucky 04 Jun 1987 Max Medley
APSC
Rhododendron calendulaceum
APSC0015505 Polk Tennessee
APSC
Rhododendron calendulaceum
APSC0091130 Harlan Kentucky
APSC
Rhododendron calendulaceum
APSC0084477 Bell Kentucky
APSC
Rhododendron calendulaceum
APSC0086090 Jefferson Kentucky
APSC
Rhododendron calendulaceum
APSC0070115 Floyd Kentucky 10 May 1988 Max Medley
APSC
Rhododendron calendulaceum
APSC0084476 Bell Kentucky
APSC
Rhododendron calendulaceum
APSC0084478 Bell Kentucky
APSC
Rhododendron calendulaceum
HTTU024156 Cumberland Tennessee
HTTU
Rhododendron calendulaceum
HTTU007766 Franklin Tennessee
HTTU
Rhododendron calendulaceum
HTTU007771 DeKalb Tennessee
HTTU
Rhododendron calendulaceum
HTTU007767 Putnam Tennessee
HTTU
Rhododendron calendulaceum
HTTU007770 DeKalb Tennessee
HTTU
Rhododendron calendulaceum
HTTU007769 Putnam Tennessee
HTTU
Rhododendron calendulaceum
HTTU007765 Putnam Tennessee
HTTU
Rhododendron calendulaceum
HTTU019871 Tennessee
HTTU
Rhododendron calendulaceum
HTTU034825 Cumberland Tennessee 07 Jul 2000
8
HTTU
Rhododendron calendulaceum
MTSU017620 Davidson Tennessee 08 Apr 1995 Bill Duke
MTSU
Rhododendron calendulaceum
MTSU017621 Cocke Tennessee 26 Apr 1986 Jim Ohlsson
MTSU
Rhododendron calendulaceum
MTSU017639 Roane Tennessee 23 Apr 2004 Raymond Holmes
MTSU
Rhododendron calendulaceum
UCHT040493 Polk Tennessee
UCHT
Rhododendron calendulaceum
UCHT036240 Polk Tennessee
UCHT
Rhododendron calendulaceum
ETSU030460 Sullivan Tennessee
ETSU
Rhododendron calendulaceum
ETSU030461 Cocke Tennessee
ETSU
Rhododendron calendulaceum
ETSU034659 Carter Tennessee
ETSU
Rhododendron calendulaceum
HTTU034826 Cumberland Tennessee 07 Jun 2000 C. Rae Hozer
8
HTTU
Rhododendron calendulaceum
31234100404993 Breathitt Kentucky 18 May 1963 Elizabeth M. Browne, Edward T. Browne, Jr.
7097
EKY
Rhododendron calendulaceum
31234100855434 Wolfe Kentucky 06 Jun 1990 Ross C. Clark
22487
EKY
Rhododendron calendulaceum
31234100405099 Letcher Kentucky 12 May 1979 Jeffrey D. Sole
747
EKY
Rhododendron calendulaceum
31234100405115 Morgan Kentucky 22 May 1964 J. L. Gentry, Jr.
1390
EKY
Rhododendron calendulaceum
31234100405008 Breathitt Kentucky 15 May 1975 J. Stuart Lassetter
2402
EKY
Rhododendron calendulaceum
31234100405495 Harlan Kentucky 17 May 2005 Amy V. McIntosh
909
EKY
Rhododendron calendulaceum
31234100405107 Magoffin Kentucky 13 Oct 1997 A. D. Wireman
88
EKY
Rhododendron calendulaceum
31234100405149 Monroe Tennessee 16 May 1980 Brian Boom
447
EKY
Rhododendron calendulaceum
31234100405081 Knott Kentucky 15 Jun 1979 Richard H. Hannan
2319
EKY
Rhododendron calendulaceum
31234100405651 Bell Kentucky 14 Jun 1979 Richard H. Hannan
2307
EKY
Rhododendron calendulaceum
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Plant Photos

Rhododendron calendulaceum - Ashley B. Morris
Rhododendron calendulaceum - Ashley B. Morris
Rhododendron calendulaceum - Ashley B. Morris
Rhododendron calendulaceum - Ashley B. Morris
Rhododendron calendulaceum - Ashley B. Morris
Rhododendron calendulaceum - Ashley B. Morris
Rhododendron calendulaceum - Dwayne Estes
Rhododendron calendulaceum - Dwayne Estes
Rhododendron calendulaceum - Dwayne Estes
Rhododendron calendulaceum - Dwayne Estes
Rhododendron calendulaceum - Dwayne Estes
Rhododendron calendulaceum - Dwayne Estes
Rhododendron calendulaceum - Dwayne Estes
Rhododendron calendulaceum - Dwayne Estes
Rhododendron calendulaceum - Milo Pyne
Rhododendron calendulaceum - Milo Pyne
Rhododendron calendulaceum - Sunny Fleming
Rhododendron calendulaceum - Sunny Fleming