Plant Index


 
 
 

Rhododendron austrinum

Rhododendron austrinum (Small) Rehder

florida flame azalea, orange azalea

Synonym(s): Azalea austrina
Cultivar(s): Admiral Semmes, Harrison's Red, Millie Mac, Moonbeam, Pretty One
Rhododendron austrinum (Florida Flame Azalea)
Image ID: 13043
Image by: Cressler, Alan M.
Image Collection: NCBG Digital Library

PLANT INDEX

ID_PLANT: RHAU
SCIENTIFIC NAME: Rhododendron austrinum
Include in WOTAS: 0
Publish to Web: 1
Last Modified: 2019-09-18

CULTIVAR INDEX

Cult_id Cultivar_name Action
1526 Admiral Semmes View
1527 Harrison's Red View
1717 Millie Mac View
1719 Moonbeam View
1528 Pretty One View

GENUS INDEX

GENUS CODE: RHODO
GENUS SCIENTIFIC: Rhododendron
GENUS AUTHORITY: L.
GENUS COMMON: Rhododendron
GENUS SUMMARY: A genus of about 860 species, shrubs and trees, mostly north temperate (centered in Himalayan Asia). Molecular evidence appears to show that Menziesia should be included in Rhododendron, and is actually closely related within Rhododendron to R. vaseyi (Goetsch, Eckert, & Hall 2005; Kurashige et al. 2001); while the urceolate corolla is rather anomalous in Rhododendron, many other characters ally Menziesia with basal clades in Rhododendron s.l.
GENUS IDENTIFICATION: Identification notes: This key makes as much use as possible of vegetative characters, geography, and capsule characters; capsules are generally available for longer during the year than flowers, and even when plants are in flower, last years capsules can often be found.
GENUS REFERENCES: Judd & Kron in FNA (2009); Fabijan in FNA (2009); Kron (1993)=Z; Judd & Kron (1995)=Y; Chamberlain (1982)=X; Cullen (1980)=Q; Davidian (1982)=D; Craven (2011)=U; Duncan & Pullen (1962)=V; Goetsch, Eckert, & Hall (2005); Towe (2004); Kron & Creel (1999); Stevens et al. in Kubitzki (2004).

FAMILY INDEX

FAMILY CODE: ERICAC
FAMILY SCIENTIFIC: Ericaceae
FAMILY AUTHORITY: A.L. de Jussieu 1789
FAMILY COMMON: Heath Family
FAMILY SUMMARY: A family of about 107-124 genera and 3400-4100 species, primarily shrubs, small trees, and subshrubs, nearly cosmopolitan. The Ericaceae is very important in our area, which is one of the north temperate centers of diversity for the Ericaceae, with a great diversity of genera and species, many of them rather narrowly endemic. Along with Quercus and Pinus, various members of this family are dominant in much of our landscape.
FAMILY REFERENCE: Tucker in FNA (2009); Gillespie & Kron (2010, 2013); Kron et al. (2002); Wood (1961); Judd & Kron (1993); Kron & Chase (1993); Luteyn et al. (1996)=L; Dorr & Barrie (1993); Cullings & Hileman (1997); Stevens et al. in Kubitzki (2004).

NCBG DESCRIPTIVES

INTRO:
STEMS:
LEAVES:
INFLORESCENCE:
FLOWERS:
FRUITS:
COMMENTS:
HEIGHT: 6-10 feet Spread 4-6 feet

DURATION: Perennial
HABIT: Shrub

LEAF ARRANGEMENT: Alternate
LEAF COMPLEXITY: Simple
LEAF RETENTION: Deciduous

FLORAL CHARACTERISTICS
SYMMETRY:
BLOOM TIME: Mar-Apr
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
x x

BLOOM COLOR: Yellow to orange flowers
White Red Pink Orange Yellow Green Blue Lavender Purple Violet Brown Not Applicable
x x x x

FRUITING PERIOD:

DISTRIBUTION
HABITAT TYPE:
NATIVE RANGE: GA, FL, AL & MS

HORTICULTURAL
Plant Sale Text: Florida Azalea erupts in golden yellow- orange trumpets each spring. If the bright flowers don’t draw you in, the light honeysuckle-like fragrance will. Prefers slightly acidic to acidic soils. It is one of the easiest native azaleas to grow. Once established, it can tolerate drought, but water occasionally during the growing season to keep it looking its best. Try planting Phlox divaricata below for a stunning spring display.

Bloom Table Text:

NCBG Location:

Cultural Notes:

SOIL MOISTURE: Average, Moist/Wet
LIGHT EXPOSURE: Part Shade, Shade
MINIMUM HARDINESS ZONE: 6
MAXIMUM HARDINESS ZONE: 10
GERMINATION CODE:
WILDLIFE VALUE: Bee Friendly, Butterfly Friendly
DEER RESISTANCE:

GRIM ACCESSIONS

acc_id acc_num acc_dt coll_id Action
379 2011-0252 2011-11-29 383 View
2660 1987-0112 View
3621 1991-0301 View
6719 1996-0374 View
6897 1998-0104 View
6898 1998-0105 View
6976 1998-0188 View
7778 2001-0134 2001-06-27 View
8095 2004-0103 View
8113 2004-0121 View
8659 2006-0264 2006-09-21 View
9184 2017-0047 2020-04-08 1940 View
9186 2017-0049 2020-04-08 1942 View


GRIM COLLECTIONS

Coll_id Project Collection date Collector Action
383 HORT Liloia View
1940 HORT 2017-04-01 MacIntyre View
1942 HORT 2017-04-01 MacIntyre View


GRIM PLANTINGS

plt_num acc_id loc_num pers_num inst_dt Action
909 379 36 NCBG staff 2011-00-00 View
4454 2660 138 NCBG staff 0000-00-00 View
5920 3621 66 NCBG staff 1996-01-01 View
5921 3621 60 NCBG staff 0000-00-00 View
9487 6719 118 NCBG staff 1967-12-01 View
9760 6897 160 NCBG staff 1997-11-07 View
9761 6898 160 NCBG staff 1997-11-07 View
9848 6976 160 NCBG staff 1998-04-03 View
9849 6976 166 NCBG staff 1998-04-03 View
10982 7778 6 NCBG staff 1996-03-25 View
11359 8095 164 NCBG staff 1967-12-31 View
11369 8113 164 NCBG staff 2003-04-08 View
11874 8659 153 NCBG staff 2006-10-01 View
11875 8659 154 NCBG staff 2006-10-01 View
12154 9184 166 MacIntyre 2017-06-12 View
12157 9186 170 MacIntyre 2017-04-10 View

USDA PLANTS DATABASE

USDA Symbol: RHAU
USDA Common Name: Orange Azalea
Native Status: L48 (N)
Distribution: USA (AL, FL, GA, MS)
Duration: Perennial
Growth Habit: Shrub

NATIONAL WETLAND INDICATOR STATUS

Region:AGCPAKAWCBEMPGPHIMWNCNEWMVE
Status: FAC FAC

This information is derived from the U.S. Army Corps of Engineers 2016 National Wetland Plant List, Version 3.3 (Lichvar, R.W., D.L. Banks, W.N. Kirchner, and N.C. Melvin. 2016. The National Wetland Plant List: 2016 wetland ratings. Phytoneuron 2016-30: 1-17. Published 28 April 2016. ISSN 2153 733X). Regions: AGCP-Atlantic and Gulf Coastal Plain, AK-Alaska, AW-Arid West, CB-Caribbean, EMP-Eastern Mountains and Piedmont, GP-Great Plains, HI-Hawaii, MW-Midwest, NCNE-Northcentral and Northeast, WMCV-Western Mountains, Valleys & Coast

WEAKLEY FLORA

SCIENTIFIC NAME: Rhododendron austrinum
COMMON NAME: Florida Flame Azalea
SYNONYMY: [= FNA, K, L, WH3, Z; = Azalea austrina Small - S]
PHENOLOGY:
HABITAT: Hammocks, bluffs, floodplain forests.
COMMENTS: Sc. GA and ne. FL west to s. AL and se. MS (Kron 1993); also reported for e. GA (Jones & Coile 1988).
RANGE MAP: Rhododendron austrinum.png

Key to Map Symbols
ABOUT FAMILY (Weakley Flora)
Ericaceae A.L. de Jussieu 1789 (Heath Family)
SUMMARY: A family of about 107-124 genera and 3400-4100 species, primarily shrubs, small trees, and subshrubs, nearly cosmopolitan. The Ericaceae is very important in our area, which is one of the north temperate centers of diversity for the Ericaceae, with a great diversity of genera and species, many of them rather narrowly endemic. Along with Quercus and Pinus, various members of this family are dominant in much of our landscape.
REFERENCE: Tucker in FNA (2009); Gillespie & Kron (2010, 2013); Kron et al. (2002); Wood (1961); Judd & Kron (1993); Kron & Chase (1993); Luteyn et al. (1996)=L; Dorr & Barrie (1993); Cullings & Hileman (1997); Stevens et al. in Kubitzki (2004).
ABOUT GENUS (Weakley Flora)
Rhododendron L. (Rhododendron)
SUMMARY: A genus of about 860 species, shrubs and trees, mostly north temperate (centered in Himalayan Asia). Molecular evidence appears to show that Menziesia should be included in Rhododendron, and is actually closely related within Rhododendron to R. vaseyi (Goetsch, Eckert, & Hall 2005; Kurashige et al. 2001); while the urceolate corolla is rather anomalous in Rhododendron, many other characters ally Menziesia with basal clades in Rhododendron s.l.
REFERENCE: Judd & Kron in FNA (2009); Fabijan in FNA (2009); Kron (1993)=Z; Judd & Kron (1995)=Y; Chamberlain (1982)=X; Cullen (1980)=Q; Davidian (1982)=D; Craven (2011)=U; Duncan & Pullen (1962)=V; Goetsch, Eckert, & Hall (2005); Towe (2004); Kron & Creel (1999); Stevens et al. in Kubitzki (2004).

HERBARIUM RESOURCES

SERNEC: Find Rhododendron austrinum in Southeast Regional Network of Experts and Collections (if available)
UNC SERNEC: Find Rhododendron austrinum in University of North Carolina Chapel Hill Herbarium - Southeast Regional Network of Experts and Collections (if available)

WEB RESOURCES

USDA: Find Rhododendron austrinum in USDA Plants
NPIN: Find Rhododendron austrinum in NPIN Database
FNA: Find Rhododendron austrinum in the Flora of North America (if available)
Google: Search Google for Rhododendron austrinum

NCBG IMAGE RECORDS

ID IMAGE1: 13043
ID IMAGE2: 7356
ID IMAGE3: 13043

From the Image Gallery


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36 photo(s) available in the Image Gallery

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