Rhododendron arborescens

ClassificationDicots
FamilyEricaceae
Family (Traditional)Ericaceae
GenusRhododendron
Species:Rhododendron arborescens (Pursh) Torr.
Common NameSmooth Azalea
Growth Habitshrub
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Woody; Natural Area Presence: BISO; Natural Area Presence: FCFSP; Natural Area Presence: FG; Natural Area Presence: GM; Natural Area Presence: GRSM; Natural Area Presence: LGS; Natural Area Presence: LRC; Natural Area Presence: LULA; Natural Area Presence: NCCGSNA; Natural Area Presence: ObedWSR; Natural Area Presence: SGSNA; Duration: Perennial; General Ecology: Terrestrial; Growth Habit: shrub; Moisture Requirements: Mesic; Moisture Requirements: Mesic-Hydric; 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: 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: Pink; Base Flower Color: White; 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; AGCP (FACW), EMP (FAC) (NWPL); TN[SNR] KY[S3S4] (State Rank); G4G5 (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

SynonymFull Citation
Azalea fragrans Azalea fragrans Raf.
Rhododendron arborescens f. flavescens Rhododendron arborescens f. flavescens Rehder
Rhododendron arborescens f. rubescens Rhododendron arborescens f. rubescens Rehder

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: Jefferson (KY), Laurel (KY), McCreary (KY), Pulaski (KY), Rockcastle (KY), Bledsoe (TN), Campbell (TN), Cannon (TN), Cumberland (TN), Fentress (TN), Grundy (TN), Hamilton (TN), Jackson (TN), Knox (TN), McMinn (TN), Marion (TN), Monroe (TN), Morgan (TN), Overton (TN), Polk (TN), Putnam (TN), Rhea (TN), Scott (TN), Sequatchie (TN), Sevier (TN), Shelby (TN), Sullivan (TN), Unicoi (TN), Van Buren (TN), Washington (TN), White (TN)

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

Range of years during which specimens were collected: 1947 - 2018

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.		 Herbarium &
Herbarium Name Used
31234100709953 McCreary Kentucky 24 Jun 1972 Elizabeth M. Browne, Edward T. Browne, Jr.
72E8.23		 EKY
Rhododendron arborescens
31234100404886 Pulaski Kentucky 28 May 1979 Rob Jacobs
528791		 EKY
Rhododendron arborescens
31234100404985 Hamilton Tennessee 11 Aug 1987 Ronald L. Jones
5336		 EKY
Rhododendron arborescens
31234100404878 McCreary Kentucky 03 Jul 1979 W. Meijer
NA		 EKY
Rhododendron arborescens
31234100404902 Van Buren Tennessee 13 Aug 1987 Ronald L. Jones
5357		 EKY
Rhododendron arborescens
31234100404969 Cumberland Tennessee 11 Jun 1987 Ronald L. Jones
4894		 EKY
Rhododendron arborescens
TENN-V-0166070 Sevier Tennessee
TENN
Rhododendron arborescens
TENN-V-0166076 Van Buren Tennessee
TENN
Rhododendron arborescens
TENN-V-0166061 Rhea Tennessee
TENN
Rhododendron arborescens
TENN-V-0166055 Polk Tennessee
TENN
Rhododendron arborescens
TENN-V-0166011 Cumberland Tennessee
TENN
Rhododendron arborescens
TENN-V-0166009 Bledsoe Tennessee
TENN
Rhododendron arborescens
TENN-V-0166056 Polk Tennessee
TENN
Rhododendron arborescens
TENN-V-0166075 Unicoi Tennessee
TENN
Rhododendron arborescens
31234100404977 Hamilton Tennessee 15 Jun 1987 Ronald L. Jones
4953		 EKY
Rhododendron arborescens
31234100404852 McCreary Kentucky 18 May 1996 Timothy J. Weckman
2599		 EKY
Rhododendron arborescens
BEREA012745 Rockcastle Kentucky
BEREA
Rhododendron arborescens
TENN-V-0166049 Morgan Tennessee
TENN
Rhododendron arborescens
TENN-V-0166050 Morgan Tennessee
TENN
Rhododendron arborescens
TENN-V-0166065 Scott Tennessee
TENN
Rhododendron arborescens
TENN-V-0166016 Cumberland Tennessee
TENN
Rhododendron arborescens
TENN-V-0166018 Cumberland Tennessee
TENN
Rhododendron arborescens
TENN-V-0166008 Bledsoe Tennessee
TENN
Rhododendron arborescens
TENN-V-0166077 Van Buren Tennessee
TENN
Rhododendron arborescens
TENN-V-0166058 Polk Tennessee
TENN
Rhododendron arborescens
TENN-V-0166059 Putnam Tennessee
TENN
Rhododendron arborescens
TENN-V-0166028 Grundy Tennessee
TENN
Rhododendron arborescens
TENN-V-0166010 Bledsoe Tennessee
TENN
Rhododendron arborescens
31234100404894 Monroe Tennessee 25 Jun 1979 B. Eugene Wofford
79-170		 EKY
Rhododendron arborescens
31234100404944 Morgan Tennessee 23 May 1980 T. Filipczak
186		 EKY
Rhododendron arborescens
31234100404910 Sequatchie Tennessee 11 Jun 1987 Ronald L. Jones
4892a		 EKY
Rhododendron arborescens
31234100404860 McCreary Kentucky 14 Oct 1990 Douglas Stephens
22		 EKY
Rhododendron arborescens
TENN-V-0166030 Hamilton Tennessee
TENN
Rhododendron arborescens
TENN-V-0166081 Van Buren Tennessee
TENN
Rhododendron arborescens
TENN-V-0166037 Marion Tennessee
TENN
Rhododendron arborescens
TENN-V-0166021 Fentress Tennessee
TENN
Rhododendron arborescens
TENN-V-0166027 Grundy Tennessee
TENN
Rhododendron arborescens
TENN-V-0166084 Washington Tennessee
TENN
Rhododendron arborescens
TENN-V-0166068 Scott Tennessee
TENN
Rhododendron arborescens
TENN-V-0166019 Fentress Tennessee
TENN
Rhododendron arborescens
TENN-V-0166082 Van Buren Tennessee
TENN
Rhododendron arborescens
TENN-V-0166051 Morgan Tennessee
TENN
Rhododendron arborescens
31234100404837 McCreary Kentucky 02 Jun 1999 Joey Shaw
159		 EKY
Rhododendron arborescens
31234100404928 Cumberland Tennessee 29 Jul 1976 Henry R. DeSelm
 EKY
Rhododendron arborescens
31234100404845 McCreary Kentucky 06 Apr 1991 David D. Taylor
15343		 EKY
Rhododendron arborescens
TENN-V-0166029 Hamilton Tennessee
TENN
Rhododendron arborescens
TENN-V-0166073 Unicoi Tennessee
TENN
Rhododendron arborescens
TENN-V-0166043 Morgan Tennessee
TENN
Rhododendron arborescens
TENN-V-0166014 Cumberland Tennessee
TENN
Rhododendron arborescens
TENN-V-0166063 Rhea Tennessee
TENN
Rhododendron arborescens
TENN-V-0166012 Cumberland Tennessee
TENN
Rhododendron arborescens
TENN-V-0166017 Cumberland Tennessee
TENN
Rhododendron arborescens
TENN-V-0166035 Marion Tennessee
TENN
Rhododendron arborescens
TENN-V-0166022 Fentress Tennessee
TENN
Rhododendron arborescens
APSC0086345 Morgan Tennessee
APSC
Rhododendron arborescens
APSC0084482 Pulaski Kentucky
APSC
Rhododendron arborescens
BEREA012744 Rockcastle Kentucky
BEREA
Rhododendron arborescens
N/A Sullivan Tennessee 01 May 2018 Frosty Levy
 ETSU
Rhododendron arborescens
TENN-V-0166033 Jackson Tennessee
TENN
Rhododendron arborescens
TENN-V-0166064 Scott Tennessee
TENN
Rhododendron arborescens
TENN-V-0166041 Monroe Tennessee
TENN
Rhododendron arborescens
TENN-V-0166023 Fentress Tennessee
TENN
Rhododendron arborescens
TENN-V-0166024 Grundy Tennessee
TENN
Rhododendron arborescens
TENN-V-0166607 McCreary Kentucky
TENN
Rhododendron arborescens
TENN-V-0166032 Hamilton Tennessee
TENN
Rhododendron arborescens
TENN-V-0166036 Marion Tennessee
TENN
Rhododendron arborescens
TENN-V-0166040 Monroe Tennessee
TENN
Rhododendron arborescens
TENN-V-0166067 Scott Tennessee
TENN
Rhododendron arborescens
UCHT022066 Marion Tennessee
UCHT
Rhododendron arborescens
UCHT022062 Overton Tennessee
UCHT
Rhododendron arborescens
APSC0055349 Cumberland Tennessee
APSC
Rhododendron arborescens
31234100404829 McCreary Kentucky 20 Jul 1983 Ronald L. Jones
3795		 EKY
Rhododendron arborescens
TENN-V-0166031 Hamilton Tennessee
TENN
Rhododendron arborescens
TENN-V-0166045 Morgan Tennessee
TENN
Rhododendron arborescens
TENN-V-0166069 Sequatchie Tennessee
TENN
Rhododendron arborescens
TENN-V-0166629 Polk Tennessee
TENN
Rhododendron arborescens
TENN-V-0166079 Van Buren Tennessee
TENN
Rhododendron arborescens
TENN-V-0166085 Shelby Tennessee
TENN
Rhododendron arborescens
TENN-V-0166083 Washington Tennessee
TENN
Rhododendron arborescens
TENN-V-0166026 Grundy Tennessee
TENN
Rhododendron arborescens
TENN-V-0166078 Van Buren Tennessee
TENN
Rhododendron arborescens
UCHT022079 Tennessee
UCHT
Rhododendron arborescens
UCHT022071 Hamilton Tennessee
UCHT
Rhododendron arborescens
UCHT007879 Grundy Tennessee 04 Jul 1947 E. E. Shanks, A. J. Sharp, E. Clebsch
5333		 UCHT
Rhododendron arborescens
UCHT022064 Hamilton Tennessee
UCHT
Rhododendron arborescens
APSC0085983 Morgan Tennessee
APSC
Rhododendron arborescens
31234100746419 Laurel Kentucky 26 Jun 2008 Tara R. Littlefield
2008-009		 EKY
Rhododendron arborescens
31234100404936 Morgan Tennessee 18 Apr 1989 Ronald L. Jones
5569		 EKY
Rhododendron arborescens
TENN-V-0166042 Morgan Tennessee
TENN
Rhododendron arborescens
TENN-V-0166025 Grundy Tennessee
TENN
Rhododendron arborescens
TENN-V-0166052 Morgan Tennessee
TENN
Rhododendron arborescens
TENN-V-0166057 Polk Tennessee
TENN
Rhododendron arborescens
TENN-V-0166038 Marion Tennessee
TENN
Rhododendron arborescens
TENN-V-0166048 Morgan Tennessee
TENN
Rhododendron arborescens
TENN-V-0166047 Morgan Tennessee
TENN
Rhododendron arborescens
TENN-V-0166053 Morgan Tennessee
TENN
Rhododendron arborescens
UCHT022063 Polk Tennessee
UCHT
Rhododendron arborescens
UCHT022070 Hamilton Tennessee
UCHT
Rhododendron arborescens
APSC0084782 Laurel Kentucky
APSC
Rhododendron arborescens
APSC0084481 McCreary Kentucky
APSC
Rhododendron arborescens
HTTU007756 Knox Tennessee
HTTU
Rhododendron arborescens
31234100407145 Jefferson Kentucky 23 Apr 2005 Stacy Lackey
3		 EKY
Rhododendron arborescens
TENN-V-0166007 Bledsoe Tennessee
TENN
Rhododendron arborescens
TENN-V-0166020 Fentress Tennessee
TENN
Rhododendron arborescens
TENN-V-0166034 McMinn Tennessee
TENN
Rhododendron arborescens
TENN-V-0166013 Cumberland Tennessee
TENN
Rhododendron arborescens
TENN-V-0166039 Marion Tennessee
TENN
Rhododendron arborescens
TENN-V-0166054 Overton Tennessee
TENN
Rhododendron arborescens
TENN-V-0166071 Sevier Tennessee
TENN
Rhododendron arborescens
TENN-V-0166062 Rhea Tennessee
TENN
Rhododendron arborescens
TENN-V-0166015 Cumberland Tennessee
TENN
Rhododendron arborescens
APSC0084789 McCreary Kentucky
APSC
Rhododendron arborescens
APSC0111223 Putnam Tennessee
APSC
Rhododendron arborescens
APSC0053207 Pulaski Kentucky 16 Jun 2010 Will Overbeck
 APSC
Rhododendron arborescens
HTTU032990 Scott Tennessee
HTTU
Rhododendron arborescens
APSC0072910 White Tennessee
APSC
Rhododendron arborescens
HTTU034413 Scott Tennessee
HTTU
Rhododendron arborescens
HTTU034257 Scott Tennessee
HTTU
Rhododendron arborescens
MTSU017578 Hamilton Tennessee 09 Apr 2011 Brynn Barnett
17		 MTSU
Rhododendron arborescens
UCHT035454 Cumberland Tennessee
UCHT
Rhododendron arborescens
APSC0101517 Morgan Tennessee
APSC
Rhododendron arborescens
HTTU007758 Scott Tennessee
HTTU
Rhododendron arborescens
HTTU007759 Scott Tennessee
HTTU
Rhododendron arborescens
TENN-V-0166066 Scott Tennessee
TENN
Rhododendron arborescens
TENN-V-0166044 Morgan Tennessee
TENN
Rhododendron arborescens
TENN-V-0166046 Morgan Tennessee
TENN
Rhododendron arborescens
UCHT022069 Marion Tennessee
UCHT
Rhododendron arborescens
UCHT022080 Tennessee
UCHT
Rhododendron arborescens
APSC0094003 McCreary Kentucky
APSC
Rhododendron arborescens
APSC0086347 McCreary Kentucky
APSC
Rhododendron arborescens
APSC0015500 Campbell Tennessee
APSC
Rhododendron arborescens
APSC0084788 McCreary Kentucky
APSC
Rhododendron arborescens
APSC0093903 Pulaski Kentucky
APSC
Rhododendron arborescens
UCHT039030 Hamilton Tennessee
UCHT
Rhododendron arborescens
HTTU034726 Scott Tennessee
HTTU
Rhododendron arborescens
UOS02444 Van Buren Tennessee 11 Jul 2001 Chris A. Fleming
 UOS
Rhododendron arborescens
ETSU031822 Tennessee
ETSU
Rhododendron arborescens
UCHT022068 Van Buren Tennessee
UCHT
Rhododendron arborescens
UCHT022077 Tennessee
UCHT
Rhododendron arborescens
APSC0045591 Polk Tennessee
APSC
Rhododendron arborescens
APSC0084790 Pulaski Kentucky
APSC
Rhododendron arborescens
APSC0084645 McCreary Kentucky
APSC
Rhododendron arborescens
APSC0015501 Van Buren Tennessee
APSC
Rhododendron arborescens
APSC0032068 Polk Tennessee
APSC
Rhododendron arborescens
MTSU017655 Van Buren Tennessee 12 Apr 1986 Dale Dorman
32		 MTSU
Rhododendron arborescens
MTSU017577 Cannon Tennessee 12 Apr 2009 Rachel Sellers
26		 MTSU
Rhododendron arborescens
MTSU017654 Pulaski Kentucky 24 Mar 1975 Don Forester
5		 MTSU
Rhododendron arborescens
TENN-V-0166060 Rhea Tennessee
TENN
Rhododendron arborescens
TENN-V-0166080 Van Buren Tennessee
TENN
Rhododendron arborescens
TENN-V-0166072 Unicoi Tennessee
TENN
Rhododendron arborescens
TENN-V-0166074 Unicoi Tennessee
TENN
Rhododendron arborescens
UCHT022065 Hamilton Tennessee
UCHT
Rhododendron arborescens
UCHT022067 Hamilton Tennessee
UCHT
Rhododendron arborescens
UCHT022078 Tennessee
UCHT
Rhododendron arborescens
UCHT007878 Polk Tennessee 28 May 1966 Ken E. Rogers, J. K. Underwood, A. J. Sharp, Gary Morton, Murray Evans
41151		 UCHT
Rhododendron arborescens
HTTU034459 Scott Tennessee
HTTU
Rhododendron arborescens
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Plant Photos

Rhododendron arborescens - Ashley B. Morris
Rhododendron arborescens - Ashley B. Morris
Rhododendron arborescens - Dwayne Estes
Rhododendron arborescens - Dwayne Estes
Rhododendron arborescens - Dwayne Estes
Rhododendron arborescens - Dwayne Estes
Rhododendron arborescens - Dwayne Estes
Rhododendron arborescens - Dwayne Estes
Rhododendron arborescens - Dwayne Estes
Rhododendron arborescens - Dwayne Estes
Rhododendron arborescens - Joey Shaw
Rhododendron arborescens - Joey Shaw
Rhododendron arborescens - Tara Littlefield
Rhododendron arborescens - Tara Littlefield
Rhododendron arborescens - Theo Witsell
Rhododendron arborescens - Theo Witsell
Rhododendron arborescens - Theo Witsell
Rhododendron arborescens - Theo Witsell
Rhododendron arborescens - Theo Witsell
Rhododendron arborescens - Theo Witsell
Rhododendron arborescens - Theo Witsell
Rhododendron arborescens - Theo Witsell