Rhododendron colemanii

Family:ERICACEAE
Species:Rhododendron colemanii R.F. Mill.
Common Name:Red Hills Azalea; Colman's Azalea
Habitat:**
Associated Ecological Communities:**
Growth Habit:Shrub
Duration:Perennial
Category:Vascular
USDA Symbol:**
Plant Notes:Red Hills Azalea is a native deciduous shrub in the Heath family (Ericaceae). This species was first described in 2008 from material collected in Monroe County, Alabama. It occurs on sandy ridges and banks of streams and on moist north-facing hardwood slopes in hardwood forests. Its range is confined to the Red Hills area of Alabama and a small area of adjacent west Georgia. Unlike most of our native deciduous azaleas, the Red Hills Azalea is a tetrapoid (having twice the normal number of chromosomes or 4N). It shares this trait with Rhododendron atlanticum, Rhododendron austrinum, Rhododendron calendulaceum, and the old world Rhododendron luteum. These species make up a monophyletic group, sharing a common ancestor unique only to them. The Red Hills Azalea is a multi-stemmed shrub reaching 20 feet in height. Leaves are deciduous, alternate, obovate to oblong in outline, with entire ciliate margins. The leaves are pubescent along the midvein on the upper surface with multicellular hairs. The lower surface is glabrous or pubescent with unicellular and scattered multicellular hairs. The midvein on the lower surface of the leaf is pubescent with appressed multicellular hairs. Flowers are produced in terminal racemes after the leaves are fully expanded. The pedicels of the flowers are densely covered with unicellular and multicellular glandular hairs. Flower color varies widely from white with a yellow blotch on the upper corolla lobe, to uniformly white, pink with yellow blotch, or uniformly pink, to rarely yellow. The outside of the flowers are covered with unicellular and multicellular gland-tipped hairs. The flowers are fragrant with a sweet, musky or lemony odor. The fruit is a cylindrical capsule with prominent raised warty bumps toward the tip, and sparsely to densely covered with unicellular and multicellular eglandular hairs, often with glandular-tipped multicellular hairs at the base. Although it is a recently described species, the Red Hills Azalea is widely
Taxonomic Notes:**
Status:Native, S1 (State Rank), G? (Global Rank)
References:**
Specimen: View specimen details in the Alabama Herbarium Consortium Specimen Database

** Not applicable or data not available.

Classification

FamilyERICACEAE - Heath family
Genus Rhododendron
Species Rhododendron colemanii R.F. Mill. - Red Hills Azalea; Colman's Azalea

Citation

Citation Rhododendron colemanii R.F. Miller, J. Amer. Rhododendron Soc. 62(2): 72–78, figs. 1–5. 2008 [2009].
Basionym: **
Type: ALABAMA: Monroe County, between Highway 41 and Big Flat Creek, 2 May 2007, R. F. Miller 24691 (holotype: TROY).

** Not applicable or data not available.

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; choose a county or herbaria to filter the specimen data.

Counties included on distribution map: Barbour, Butler, Clarke, Conecuh, Houston, Monroe, Pike, Russell

Counties represented by specimen data listed below:

Herbaria represented by specimen data listed below: ALNHS, AUA, TROY, USAM, UWAL

Range of years during which specimens were collected: 2015 - 2015

Barcode / Accession No. County Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
Image
TROY000018647 Russell 05 May 2007 Miller, Ron
s.n.
TROY
Rhododendron colemanii R. Miller
AUA_ACC_49585 Barbour 22 Apr 1989 Diamond, Alvin R.
5853
AUA
Rhododendron Colemanii R. Miller
AUA_ACC_43824 Conecuh 20 Apr 1985 Diamond, Alvin R.
471
AUA
Rhododendron Colemanii R. Miller
ALNHS00004142 Houston 19 Jul 2016 Barger, T. Wayne
DTP-283
ALNHS
Rhododendron colemanii R.F. Mill
TROY000018641 Butler 03 May 2007 Miller, Ron
s.n.
TROY
Rhododendron colemanii R. Miller
ALNHS00003116 Russell 20 Apr 2015 Barger, T. Wayne
SP#1640
ALNHS
Rhododendron colemanii R.F. Mill
AUA_ACC_49584 Barbour 22 Apr 1989 Diamond, Alvin R.
5852
AUA
Rhododendron Colemanii R. Miller
TROY000018644 Monroe 02 May 2007 Miller, Ron
s.n.
TROY
Rhododendron colemanii R. Miller
TROY000018645 Monroe 02 May 2007 Miller, Ron
s.n.
TROY
Rhododendron colemanii R. Miller
USAM000005701 Monroe 27 Apr 1975 LeLong, Michel G.
8403
USAM
Rhododendron colemanii R. Miller
AUA_ACC_49611 Pike 22 Apr 1989 Diamond, Alvin R.
5854
AUA
Rhododendron Colemanii R. Miller
AUA_ACC_25681 Clarke 11 Apr 1964 Kral, Robert
19739
AUA
Rhododendron Colemanii R. Miller
AUA_ACC_49550 Russell 18 Aug 1988 Diamond, Alvin R.
5377
AUA
Rhododendron Colemanii R. Miller
AUA_ACC_51242 Barbour 22 Apr 1989 Diamond, Alvin R.
5850
AUA
Rhododendron Colemanii R. Miller
TROY000018640 Butler 07 May 2008 Diamond, Alvin R.
19224
TROY
Rhododendron colemanii R. Miller
AUA_ACC_44964 Conecuh 26 Apr 1986 Diamond, Alvin R.
2430
AUA
Rhododendron Colemanii R. Miller
UWAL0007477 Butler 07 May 2008 Diamond, Alvin R.
19224
UWAL
Rhododendron colemanii R. Miller
AUA000039714 Russell 20 Apr 2015 Barger, T. Wayne
SP1640
AUA
Rhododendron Colemanii R. Miller
AUA_ACC_49551 Russell 18 Aug 1988 Diamond, Alvin R.
5377A
AUA
Rhododendron Colemanii R. Miller
AUA_ACC_51241 Barbour 22 Apr 1989 Diamond, Alvin R.
5851
AUA
Rhododendron Colemanii R. Miller
UWAL0007476 Butler 07 May 2008 Diamond, Alvin R.
19220
UWAL
Rhododendron colemanii R. Miller
UWAL0002806 Conecuh 23 Apr 2011 Diamond, Alvin R.
21945
UWAL
Rhododendron colemanii R. Miller
TROY000018643 Butler 02 Aug 2006 Miller, Ron
0
TROY
Rhododendron colemanii R. Miller
TROY000032790 Conecuh 23 Apr 2011 Diamond, Alvin R.
21945
TROY
Rhododendron colemanii R. Miller
TROY000018639 Butler 07 May 2008 Diamond, Alvin R.
19221
TROY
Rhododendron colemanii R. Miller
AUA_ACC_49583 Pike 22 Apr 1989 Diamond, Alvin R.
5855
AUA
Rhododendron Colemanii R. Miller
UWAL0016481 Butler 12 May 2014 Diamond, Alvin R.
25093
UWAL
Rhododendron colemanii R.Miller
AUA_ACC_45621 Butler 10 May 1987 Diamond, Alvin R.
3235
AUA
Rhododendron Colemanii R. Miller
AUA_ACC_48867 Pike 18 Apr 1988 Diamond, Alvin R.
4461
AUA
Rhododendron Colemanii R. Miller
TROY000018646 Monroe 08 Aug 2006 Miller, Ron
s.n.
TROY
Rhododendron colemanii R. Miller
ALNHS00001123 Butler 03 May 2012 Barger, T. Wayne
SP#455
ALNHS
Rhododendron colemanii R.F. Mill
TROY000039448 Butler 12 May 2014 Diamond, Alvin R.
25093
TROY
Rhododendron colemanii R. Miller
UWAL0007478 Butler 07 May 2008 Diamond, Alvin R.
19221
UWAL
Rhododendron colemanii R. Miller
TROY000029841 Monroe 11 Jul 2007 Miller, Ron
s.n.
TROY
Rhododendron colemanii R. Miller
AUA_ACC_50596 Pike 14 May 1989 Diamond, Alvin R.
5895
AUA
Rhododendron Colemanii R. Miller
TROY000018638 Butler 07 May 2008 Diamond, Alvin R.
19220
TROY
Rhododendron colemanii R. Miller
AUA_ACC_49610 Pike 22 Apr 1989 Diamond, Alvin R.
5856
AUA
Rhododendron Colemanii R. Miller
ALNHS00004142 Houston 19 Jul 2016 Barger, T. Wayne
DTP-283
ALNHS
Rhododendron colemanii R.F. Mill
TROY000018642 Butler 03 May 2007 Miller, Ron
s.n.
TROY
Rhododendron colemanii R. Miller
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