Rudbeckia auriculata

Family:ASTERACEAE
Species:Rudbeckia auriculata (Perdue) Kral
Common Name:Eared Coneflower; Alabama Coneflower; Swamp Black Eyed Susan
Habitat:**
Associated Ecological Communities:**
Growth Habit:Herb
Duration:Perennial
Category:Vascular
USDA Symbol:RUAU2
Plant Notes:Eared Coneflower is a native herbaceous perennial in the Sunflower family (Asteraceae). It is a rare wildflower found in Alabama, Florida, and Georgia. The majority of the range of this species is in Alabama, where it occurs in ten counties. Eared Coneflower has a strange distribution with a cluster of populations in the Birmingham area and a second cluster in central south Alabama. Extensive searching has failed to locate any populations between the two centers. Eared Coneflower grows in open, wet sites. It can be found along creeks and beaver ponds, under power line right-of-way’s, in pitcher plants bogs, and on marl seeps. Eared Coneflower is a massive plant, producing clusters of basal leaves up to 1 ½ feet long from short rhizomes. The basal leaves are petiolate, elliptic to lanceolate in outline, entie or toothed, and pubescent with short, stiff hairs primarily on the upper surface. The flowering stems are commonly over six feet in height, and can be over ten feet tall. The smooth and often glaucous stems have alternate auriculate clasping leaves. The stem leaves are sessile, ovate to pandurate in outline, with toothed or entire margins. The stem leaves are reduced in size upwards on the stem. Flowers are produced in heads. The heads are arranged in open panicles. Individual flower heads resemble those of the common Black-Eyed Susan (Rudbeckia hirta Linnaeus), but are slightly larger. Each head has 8-15 yellow ray flowers and 150-200 purple-black disc flowers. The fruit is an achene. Eared Coneflower is ranked as a S2 species in Alabama (typically 6 to 20 occurrences, few remaining individuals, acres, or miles of stream, or factors demonstrably making it very vulnerable in the state) and globally ranked as a G1 species (critically imperiled globally because of extreme rarity (5 or fewer occurrences), or very few remaining acres, or miles of stream) or especially vulnerable to extinction because of some factor of its biology). Eared Coneflower is sometimes avai
Taxonomic Notes:**
Status:Native, FACW (NWI), S2 (State Rank), G1 (Global Rank)
References:**
Specimen: View specimen details in the Alabama Herbarium Consortium Specimen Database

** Not applicable or data not available.

Classification

FamilyASTERACEAE - Aster family
Genus Rudbeckia
Species Rudbeckia auriculata (Perdue) Kral - Eared Coneflower; Alabama Coneflower; Swamp Black Eyed Susan

Citation

Citation RUDBECKIA AURICULATA (Perdue) Kral, Rhodora 77: 49. 1975.
Basionym: Rudbeckia fulgida Aiton, var. auriculata Perdue 1961.
Type: ALABAMA: Covington Co.: Along AL 55, 11 mi. S of McKenzie, 2 mi. N of Red Level, 24 Jul 1958, Perdue 2177 (holotype: GH; isotype: US).

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Rudbeckia fulgida var. auriculata Rudbeckia fulgida Aiton, var. auriculata Perdue, Rhodora 63: 119. 1961. ALABAMA: Covington Co.: Along AL 55, 11 mi. S of McKenzie, 2 mi. N of Red Level, 24 Jul 1958, Perdue 2177 (holotype: GH; isotype: US).

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, Blount, Bullock, Covington, Crenshaw, Geneva, Jefferson, Pike, Shelby, St. Clair

Counties represented by specimen data listed below:

Herbaria represented by specimen data listed below: AUA, JSU, NY, SAMF, TROY, UNA, 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
AUA000006828 Crenshaw 4 AUG 1992 DIAMOND, JR., ALVIN R.
8378
AUA
RUDBECKIA AURICULATA (PERDUE) KRAL
AUA000006836 Geneva 18 AUG 1970 MOORE, HAROLD D.
640
AUA
RUDBECKIA AURICULATA (PERDUE) KRAL
TROY000046084 Crenshaw 12 Aug 2010 Alvin R. Diamond
21529
TROY
Rudbeckia auriculata (Perdue) Kral
TROY000016106 Jefferson 09 Aug 2001 Alvin R. Diamond
12604
TROY
Rudbeckia auriculata (Perdue) Kral
UWAL0001788 Crenshaw 12 Aug 2010 Diamond, A.R.
21529
UWAL
Rudbeckia auriculata (Perdue) Kral
TROY000002671 Crenshaw 27 Jul 2000 Alvin R. Diamond
11931
TROY
Rudbeckia auriculata (Perdue) Kral
UNA00049032 St. Clair 31 Aug 1980 Sidney McDaniel
24446
UNA
Rudbeckia auriculata (Perdue) Kral
AUA000006830 Crenshaw 17 AUG 1992 DIAMOND, JR., ALVIN R.
8400
AUA
RUDBECKIA AURICULATA (PERDUE) KRAL
AUA000006837 Pike 26 AUG 1992 DIAMOND, JR., ALVIN R.
8409
AUA
RUDBECKIA AURICULATA (PERDUE) KRAL
AUA000006829 Crenshaw 4 AUG 1992 DIAMOND, JR., ALVIN R.
8378
AUA
RUDBECKIA AURICULATA (PERDUE) KRAL
UWAL0001778 Pike 03 Aug 2010 Diamond, A.R.
21519
UWAL
Rudbeckia auriculata (Perdue) Kral
TROY000016105 Jefferson 07 Aug 2001 Alvin R. Diamond
12596
TROY
Rudbeckia auriculata (Perdue) Kral
UNA00059243 Jefferson 11 Aug 2002 Alvin R. Diamond
13533
UNA
Rudbeckia auriculata (Perdue) Kral
UWAL0014053 Bullock 23 Aug 2013 Dykes, Bailee
1716
UWAL
Rudbeckia auriculata (Perdue) Kral
UWAL0000950 Crenshaw 01 Aug 2003 Kral, R.
94288
UWAL
Rudbeckia auriculata (Perdue) Kral
UNA00049033 St. Clair 31 Aug 1980 Sidney McDaniel
24446
UNA
Rudbeckia auriculata (Perdue) Kral
AUA000006823 Bullock 17 AUG 1993 DIAMOND, JR., ALVIN R.
8742
AUA
RUDBECKIA AURICULATA (PERDUE) KRAL
TROY000043426 Jefferson 13 Sep 2015 Brian R. Keener
9216
TROY
Rudbeckia auriculata (Perdue) Kral
AUA000006831 Crenshaw 8 AUG 1992 DIAMOND, JR., ALVIN R.
8380
AUA
RUDBECKIA AURICULATA (PERDUE) KRAL
TROY000016104 Jefferson 07 Aug 2001 Alvin R. Diamond
12597
TROY
Rudbeckia auriculata (Perdue) Kral
SAMF0002901 Jefferson 03 Jul 2014 Davenport, L. J.
5630
SAMF
Rudbeckia auriculata (Perdue) Kral
UNA00059245 Jefferson 11 Aug 2002 Alvin R. Diamond
13536
UNA
Rudbeckia auriculata (Perdue) Kral
UWAL0018338 Covington 26 Aug 1995 Kral, R.
85669
UWAL
Rudbeckia auriculata (Perdue) Kral
UNA00049031 Crenshaw 9 Aug 1980 Sidney McDaniel
24311
UNA
Rudbeckia auriculata (Perdue) Kral
AUA000006822 Barbour 19 AUG 1992 DIAMOND, JR., ALVIN R.
8401
AUA
RUDBECKIA AURICULATA (PERDUE) KRAL
TROY000044661 Geneva 17 Aug 2017 Cameron Byrd
1434
TROY
Rudbeckia auriculata (Perdue) Kral
UWAL0018897 Jefferson 22 Sep 1982 Kral, R.
69562
UWAL
Rudbeckia auriculata (Perdue) Kral
TROY000016111 Shelby 07 Aug 2001 Alvin R. Diamond
12599
TROY
Rudbeckia auriculata (Perdue) Kral
TROY000046079 Pike 03 Aug 2010 Alvin R. Diamond
21519
TROY
Rudbeckia auriculata (Perdue) Kral
UNA00054095 Blount 15 Aug 1998 Brian R. Keener
1472
UNA
Rudbeckia auriculata (Perdue) Kral
TROY000037654 Crenshaw 03 Aug 2013 Alvin R. Diamond
24425
TROY
Rudbeckia auriculata (Perdue) Kral
AUA000006839 Pike 12 SEP 1990 DIAMOND, JR., ALVIN R.
7124
AUA
RUDBECKIA AURICULATA (PERDUE) KRAL
AUA000006835 Geneva 21 AUG 1992 DIAMOND, JR., ALVIN R.
8404
AUA
RUDBECKIA AURICULATA (PERDUE) KRAL
UWAL0031743 Crenshaw 23 Jul 1993 Kral, R.
82347
UWAL
Rudbeckia auriculata (Perdue) Kral
AUA000006834 Geneva 8 AUG 1998 SCHOTZ, ALFRED
1663
AUA
RUDBECKIA AURICULATA (PERDUE) KRAL
TROY000016110 Shelby 08 Aug 2000 Alvin R. Diamond
11968
TROY
Rudbeckia auriculata (Perdue) Kral
TROY000038110 Bullock 23 Aug 2013 Bailee Dykes
1716
TROY
Rudbeckia auriculata (Perdue) Kral
UNA00049034 Covington 30 Jun 1998 John R. MacDonald
11543
UNA
Rudbeckia auriculata (Perdue) Kral
TROY000016103 Jefferson 11 Aug 2002 Alvin R. Diamond
13536
TROY
Rudbeckia auriculata (Perdue) Kral
TROY000002675 Pike 08 Aug 2001 Alvin R. Diamond
12602
TROY
Rudbeckia auriculata (Perdue) Kral
TROY000002674 Covington 22 Jul 2000 Alvin R. Diamond
11879
TROY
Rudbeckia auriculata (Perdue) Kral
NY00232836 Covington 24 Jul 1958 Robert E. Perdue
2177
NY
Rudbeckia fulgida Aiton var. auriculata Perdue
AUA000006824 Covington 17 AUG 1992 DIAMOND, JR., ALVIN R.
8394
AUA
RUDBECKIA AURICULATA (PERDUE) KRAL
AUA000006827 Crenshaw 25 AUG 1996 DIAMOND, JR., ALVIN R.
10501
AUA
RUDBECKIA AURICULATA (PERDUE) KRAL
TROY000016107 Shelby 07 Aug 2001 Alvin R. Diamond
12601
TROY
Rudbeckia auriculata (Perdue) Kral
UNA00056106 Covington 26 Aug 1998 John R. MacDonald
11824
UNA
Rudbeckia auriculata (Perdue) Kral
TROY000016102 Jefferson 11 Aug 2002 Alvin R. Diamond
13533
TROY
Rudbeckia auriculata (Perdue) Kral
TROY000002673 Geneva 06 Aug 2000 Alvin R. Diamond
11959
TROY
Rudbeckia auriculata (Perdue) Kral
AUA000006840 Pike 11 AUG 1996 DIAMOND, JR., ALVIN R.
10443
AUA
RUDBECKIA AURICULATA (PERDUE) KRAL
NY00232835 Covington 24 Jul 1958 Robert E. Perdue
2177
NY
Rudbeckia fulgida Aiton var. auriculata Perdue
AUA000006826 Covington 17 AUG 1992 DIAMOND, JR., ALVIN R.
8393
AUA
RUDBECKIA AURICULATA (PERDUE) KRAL
AUA000006838 Pike 23 AUG 1989 DIAMOND, JR., ALVIN R.
6297
AUA
RUDBECKIA AURICULATA (PERDUE) KRAL
UWAL0019946 Jefferson 13 Sep 2015 Keener, Brian R.
9216
UWAL
Rudbeckia auriculata (Perdue) Kral
UNA00056250 Geneva 20 Sep 1998 John R. MacDonald
12087
UNA
Rudbeckia auriculata (Perdue) Kral
UWAL0017832 St. Clair 22 Sep 1982 Kral, R.
69569
UWAL
Rudbeckia auriculata (Perdue Kral)
TROY000016108 Shelby 07 Aug 2001 Alvin R. Diamond
12600
TROY
Rudbeckia auriculata (Perdue) Kral
UWAL0030197 Jefferson 11 Aug 2015 Davenport, L.J.
5933
UWAL
Rudbeckia auriculata (Perdue) Kral
TROY000002670 Covington 03 Aug 2002 Alvin R. Diamond
13502
TROY
Rudbeckia auriculata (Perdue) Kral
SAMF0003104 Jefferson 11 Aug 2015 Davenport, L. J.
5933
SAMF
Rudbeckia auriculata (Perdue) Kral
AUA000006842 Shelby 12 SEP 1994 DIAMOND, JR., ALVIN R.
9372
AUA
RUDBECKIA AURICULATA (PERDUE) KRAL
AUA000006825 Covington 22 AUG 1992 DIAMOND, JR., ALVIN R.
8406
AUA
RUDBECKIA AURICULATA (PERDUE) KRAL
UWAL0031742 Crenshaw 23 Jul 1993 Kral, R.
82947
UWAL
Rudbeckia auriculata (Perdue) Kral
UWAL0014896 Crenshaw 03 Aug 2013 Diamond, Alvin R.
24425
UWAL
Rudbeckia auriculata (Perdue) Kral
AUA000006841 Pike 9 AUG 1992 DIAMOND, JR., ALVIN R.
8387
AUA
RUDBECKIA AURICULATA (PERDUE) KRAL
TROY000016109 Shelby 07 Aug 2001 Alvin R. Diamond
12598
TROY
Rudbeckia auriculata (Perdue) Kral
JSU119479 Jefferson 11 Jun 2000 D. D. Spaulding
10885
JSU
Rudbeckia auriculata (Perdue) Kral
UNA00059236 Covington 3 Aug 2002 Alvin R. Diamond
13502
UNA
Rudbeckia auriculata (Perdue) Kral
UNA00049030 Crenshaw 9 Aug 1980 Sidney McDaniel
24312
UNA
Rudbeckia auriculata (Perdue) Kral
AUA000006833 Geneva 21 AUG 1992 DIAMOND, JR., ALVIN R.
8403
AUA
RUDBECKIA AURICULATA (PERDUE) KRAL
TROY000002672 Geneva 29 May 1998 John R. MacDonald
11328b
TROY
Rudbeckia auriculata (Perdue) Kral
AUA000006843 Shelby 5 AUG 1998 SCHOTZ, ALFRED
1661
AUA
RUDBECKIA AURICULATA (PERDUE) KRAL
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