Hypericum walteri

Family:HYPERICACEAE
Species:Hypericum walteri J.F.Gmel.
Common Name:Greater Marsh St. John's Wort; Walter's Marsh St. John's Wort
Habitat:**
Associated Ecological Communities:**
Growth Habit:Herb
Duration:Perennial
Category:Vascular
USDA Symbol:TRWA
Plant Notes:Greater Marsh St. John's Wort is a native herbaceous perennial in the St John’s Wort family (Hypericaceae). It can be found throughout Alabama. Greater Marsh St. John's Wort grows in swamps, in marshes, along streams and rivers, and around ponds and lakes. It is a perennial with an elongated rhizome. Stems are erect and 1-3 feet in height. The stems are branched above the middle. Leaves are petiolate, opposite, elliptic to oblong in outline, with entire margins, and with glandular dots on the lower leaf surface. Flowers are produced in axillary cymes or solitary from the upper leaf axils. The flowers have 5 sepals and 5 pink to salmon petals. The fruit is a cylindrical capsule. This species is sometimes placed in the genus Triadenum, and may appear as Triadenum walteri (J. F. Gmelin) Gleason in some field guides or floras. Triadenum was separated from Hypericum based on the pinkish color of the flowers, having 9 stamens in 3 fascicles, having filaments fused for ½-1/5 of their length, and with a large gland at the base of each fascicle. Hypericum had yellow to orange flowers, 10-300 stamens in a continuous ring or in 4-5 fascicles, the filaments separate or fused only at their base, and lacking a large gland at the base of the stamens. Molecular studies however indicate that Triadenum is part of Hypericum and should not be treated as distinct at the genus level.--A. Diamond
Taxonomic Notes:**
Status:Native, OBL (NWI)
References:**
Specimen: View specimen details in the Alabama Herbarium Consortium Specimen Database

** Not applicable or data not available.

Classification

FamilyHYPERICACEAE - St Johns Wort Family family
Genus Hypericum
Species Hypericum walteri J.F.Gmel. - Greater Marsh St. John's Wort; Walter's Marsh St. John's Wort

Citation

Citation HYPERICUM WALTERI J. F. Gmelin, Syst. Nat. 2: 1159. 1792.
Basionym: Hypericum petiolatum Walter 1788, non Linnaeus 1763, nec Linnaeus f. 1782.
Type: GEORGIA: Walker Co.: 4.2 mi. E of Lafayette, 20 Sep 1951, Duncan 13239 (neotype: GH; isoneotypes: BH, FLAS, GA, US). Neotypified by D. B. Ward, J. Bot. Res. Inst. Texas 2: 478. 2008.

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Elodes axillaris Elodes axillaris Spach, Ann. Sci. Nat., Bot., ser. 2. 5: 170. 1836.Hypericum axillare Michaux, non Lamarck 1797. 
Elodes floribunda Elodes floribunda Spach, Ann. Sci. Nat., Bot., ser. 2. 5: 169. 1836.  
Elodes petiolata Elodes petiolata Pursh, Fl. Amer. Sept. 379. 1814, nom. illegit.Hypericum walteri J. F. Gmelin 1792; Hypericum petiolatum Walter 1788, non Linnaeus 1763, nec Linnaeus f. 1782. 
Gardenia petiolata Gardenia petiolata Farwell, Amer. Midl. Naturalist 8: 35. 1922, nom. illegit.Hypericum walteri J. F. Gmelin 1792; Hypericum petiolatum Walter 1788, non Linnaeus 1763, nec Linnaeus f. 1782. 
Hypericum axillare Hypericum axillare Michaux, Fl. Bor.-Amer. 2: 81. 1803, non Lamarck 1797.  
Hypericum paludosum Hypericum paludosum Choisy, Prodr. Monogr. Hyperic. 43. 1821, nom. illegit.Hypericum walteri J. F. Gmelin 1792; Hypericum petiolatum Walter 1788, non Linnaeus 1763, nec Linnaeus f. 1782. 
Hypericum petiolatum Hypericum petiolatum Walter, Fl. Carol. 191. 1788, non Linnaeus 1763, nec Linnaeus f. 1782. GEORGIA: Walker Co.: 4.2 mi. E of Lafayette, 20 Sep 1951, Duncan 13239 (neotype: GH; isoneotypes: BH, FLAS, GA, US). Neotypified by D. B. Ward, J. Bot. Res. Inst. Texas 2: 478. 2008.
Hypericum virginicum subsp. walteri Hypericum virginicum Linnaeus, subsp. walteri (J. F. Gmelin) E. Murray, Kalmia 13: 7. 1983.Hypericum walteri J. F. Gmelin 1792; Hypericum petiolatum Walter 1788, non Linnaeus 1763, nec Linnaeus f. 1782. 
Hypericum virginicum var. walteri Hypericum virginicum Linnaeus, var. walteri (J. F. Gmelin) E. Murray, Kalmia 13: 7. 1983.Hypericum walteri J. F. Gmelin 1792; Hypericum petiolatum Walter 1788, non Linnaeus 1763, nec Linnaeus f. 1782. 
Hypericum tubulosum var. walteri Hypericum tubulosum Walter, var. walteri (J. F. Gmelin) Lott, J. Arnold Arbor. 19: 279. 1938.Hypericum walteri J. F. Gmelin 1792; Hypericum petiolatum Walter 1788, non Linnaeus 1763, nec Linnaeus f. 1782. 
Martia petiolata Martia petiolata Sprengel, Syst. Veg. 3: 333. 1826, nom. illegit.Hypericum walteri J. F. Gmelin 1792; Hypericum petiolatum Walter 1788, non Linnaeus 1763, nec Linnaeus f. 1782. 
Triadenum tubulosum var. walteri Triadenum tubulosum (Walter) Gleason, var. walteri (J. F. Gmelin) Cooperrider, Castanea 54: 10. 1989.Hypericum walteri J. F. Gmelin 1792; Hypericum petiolatum Walter 1788, non Linnaeus 1763, nec Linnaeus f. 1782. 
Triadenum petiolatum Triadenum petiolatum Britton, in Britton & A. Brown, Ill. Fl. N. U.S. 2: 437. 1897, nom. illegit.Hypericum walteri J. F. Gmelin 1792; Hypericum petiolatum Walter 1788, non Linnaeus 1763, nec Linnaeus f. 1782. 
Triadenum walteri Triadenum walteri (J. F. Gmelin) Gleason, Phytologia 2: 289. 1947.Hypericum walteri J. F. Gmelin 1792; Hypericum petiolatum Walter 1788, non Linnaeus 1763, nec Linnaeus f. 1782. 

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: Autauga, Baldwin, Barbour, Bibb, Blount, Bullock, Butler, Calhoun, Cherokee, Chilton, Clarke, Coffee, Conecuh, Covington, Dale, Dallas, DeKalb, Elmore, Escambia, Geneva, Greene, Hale, Houston, Jackson, Lamar, Limestone, Macon, Madison, Marengo, Marshall, Mobile, Monroe, Montgomery, Pickens, Pike, Sumter, Talladega, Tallapoosa, Tuscaloosa, Walker, Wilcox

Counties represented by specimen data listed below:

Herbaria represented by specimen data listed below: JSU, TROY, UNA, UNAF, USAM, UWAL

Range of years during which specimens were collected: -

Barcode / Accession No. County Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
Image
JSU127292 Cherokee 27 Oct 1983 R. D. Whetstone
13833
JSU
Triadenum walteri (Gmelin) Gleason
UWAL0012164 Sumter 04 Oct 2009 Keener, Brian R.
5630
UWAL
Hypericum walteri J.F. Gmelin
UNA00050504 Chilton 26 Sep 1995 Michelle Birk
470
UNA
Hypericum walteri J.G. Gmel.
UWAL0030659 Covington 18 Oct 2015 Diamond, Alvin R.
26938
UWAL
Hypericum walteri JF Gmel
TROY000044717 Autauga 11 Nov 2016 Matthew R. Parker
286
TROY
Hypericum walteri J.F.Gmel.
TROY000041225 Elmore 26 Jul 2011 Robert Pullen
108
TROY
Hypericum walteri J.F.Gmel.
TROY000043746 Houston 22 Oct 2015 Alvin R. Diamond
26972
TROY
Hypericum walteri J.F.Gmel.
UNA00010685 Chilton 15 Sep 1979 John H. Wiersema
1285
UNA
Hypericum walteri J.G. Gmel.
JSU127300 Jackson 21 Sep 1997 D. D. Spaulding
10095
JSU
Triadenum walteri (Gmelin) Gleason
USAM000003998 Baldwin 22 Jun 1977 Michel G. Lelong
9886
USAM
Hypericum walteri J.F.Gmel.
UNA00010674 Elmore 18 Sep 1977 Denise Harvey
268
UNA
Hypericum walteri J.G. Gmel.
TROY000033463 Barbour 03 Sep 2011 Lauren Ryan
64
TROY
Triadenum walteri (Gmelin) Gleason
UNA00010711 Tuscaloosa 5 Oct 1977 L. J. Davenport
196
UNA
Hypericum walteri J.G. Gmel.
TROY000003939 Coffee 03 Nov 2000 Brian H. Martin
1009
TROY
Triadenum walteri (Gmelin) Gleason
TROY000017710 Tallapoosa 26 Sep 2006 Terry Wayne Barger
404
TROY
Triadenum walteri (Gmelin) Gleason
USAM000003938 Baldwin 06 Aug 1976 Michel G. Lelong
9350
USAM
Hypericum walteri J.F.Gmel.
UNA00010690 Macon 24 Sep 1978 Robert R. Haynes
6911
UNA
Hypericum walteri J.G. Gmel.
UNA00010660 Greene 20 Jun 1967 Joab L. Thomas
T1056
UNA
Hypericum walteri J.G. Gmel.
UWAL0031849 Conecuh 15 Oct 1996 Kral, R.
86943
UWAL
Hypericum walteri J.G. Gmel.
JSU127291 Calhoun 29 Aug 1987 C. L. Lawler
1639
JSU
Triadenum walteri (Gmelin) Gleason
UNA00010684 Geneva 26 Oct 1966 Sidney McDaniel
7970
UNA
Hypericum walteri J.G. Gmel.
UWAL0007265 Sumter 08 Sep 2006 Keener, Brian R.
3044
UWAL
Hypericum walteri J.G. Gmel.
UNA00010698 Walker 27 Oct 1984 Charles N. Horn
633
UNA
Hypericum walteri J.G. Gmel.
UNA00066857 Sumter 8 Sep 2006 Brian R. Keener
3044
UNA
Triadenum walteri (J.G. Gmel.) Gleason
UNAF0001827 Marshall 24 Sep 2008 Webb, David H.
6839
UNAF
Hypericum walteri J.F. Gmelin
UNA00010699 Hale 5 Aug 1966 Norris H. Williams
375
UNA
Hypericum walteri J.G. Gmel.
UWAL0030718 Montgomery 24 Sep 2015 Diamond, Alvin R.
26860
UWAL
Hypericum walteri JF Gmel
TROY000003936 Barbour 03 Sep 2000 Alvin R. Diamond
12046
TROY
Triadenum walteri (Gmelin) Gleason
TROY000003942 Dale 17 Aug 1999 Tiffany Pennington
182
TROY
Triadenum walteri (Gmelin) Gleason
JSU127294 Coffee 18 Oct 1977 R. Kral
61146
JSU
Triadenum walteri (Gmelin) Gleason
UWAL0033971 Marengo 16 Oct 2016 Keener, Brian R.
9878
UWAL
Hypericum walteri J.F. Gmelin
UNA00010689 Monroe 20 Aug 1978 John H. Wiersema
464
UNA
Hypericum walteri J.G. Gmel.
UNA00010700 Limestone 1 Sep 1979 Russell A. Meigs
234
UNA
Hypericum walteri J.G. Gmel.
TROY000003945 Pike 09 Oct 2000 James A. Hall
167
TROY
Triadenum walteri (Gmelin) Gleason
UWAL0013065 Bullock 02 Nov 2012 Dykes, Bailee
1441
UWAL
Hypericum walteri J.G. Gmelin
UNA00010706 Baldwin _ Jul 1882 Charles Mohr
s.n.
UNA
Triadenum walteri (J.G. Gmel.) Gleason
JSU127295 DeKalb 20 Aug 1992 F. W. Clearman Jr.
203
JSU
Triadenum walteri (Gmelin) Gleason
UNA00065845 Autauga 15 Oct 1978 R. Kral
63070
UNA
Hypericum walteri J.G. Gmel.
UWAL0033163 Houston 29 Oct 2015 Diamond, Alvin R.
27007
UWAL
Hypericum walteri J.F.Gmel.
JSU127364 Talladega 6 Sep 1993 J. M. Ballard
3293
JSU
Triadenum walteri (Gmelin) Gleason
TROY000018266 Butler 30 Sep 2007 Alvin R. Diamond
18429
TROY
Triadenum walteri (Gmelin) Gleason
JSU127361 Lamar 22 Oct 1976 R. Kral
59437
JSU
Triadenum walteri (Gmelin) Gleason
UWAL0033706 Pickens 21 Aug 2016 Keener, Brian R.
9790
UWAL
Hypericum walteri J.G. Gmel.
UNA00010680 Dallas 29 Aug 1980 John H. Wiersema
2041
UNA
Hypericum walteri J.G. Gmel.
UNA00034173 Wilcox 9 Sep 1982 S. C. Gunn
1277
UNA
Hypericum walteri J.G. Gmel.
TROY000003946 Pike 09 Oct 2000 James A. Hall
167
TROY
Triadenum walteri (Gmelin) Gleason
TROY000018267 Escambia 12 Nov 2007 Alvin R. Diamond
18658
TROY
Triadenum walteri (Gmelin) Gleason
UNA00054491 Blount 12 Oct 1998 Brian R. Keener
1731
UNA
Triadenum walteri (J.G. Gmel.) Gleason
UNA00050492 Bibb 28 Sep 1995 Michelle Birk
513
UNA
Hypericum walteri J.G. Gmel.
UWAL0033026 Houston 22 Oct 2015 Diamond, Alvin R.
26972
UWAL
Hypericum walteri J.F.Gmel.
TROY000003938 Clarke 01 Oct 2006 Alvin R. Diamond
16980
TROY
Triadenum walteri (Gmelin) Gleason
USAM000004000 Mobile 13 Oct 1978 Michel G. Lelong
10565
USAM
Hypericum walteri J.F.Gmel.
JSU127293 Clarke 31 Oct 1997 R. D. Whetstone
18944
JSU
Triadenum walteri (Gmelin) Gleason
UWAL0007264 Marengo 16 Sep 2008 England, J. Kevin
1131
UWAL
Hypericum walteri J.G. Gmel.
UNA00010695 Elmore 17 Oct 1977 John H. Wiersema
307
UNA
Hypericum walteri J.G. Gmel.
UNA00010694 Wilcox 27 Sep 1978 Robert R. Haynes
6939
UNA
Hypericum walteri J.G. Gmel.
TROY000003943 Dale 18 Sep 1997 Hannelore Rundell
439
TROY
Triadenum walteri (Gmelin) Gleason
TROY000003937 Butler 23 Sep 2004 Alvin R. Diamond
14717
TROY
Triadenum walteri (Gmelin) Gleason
JSU127297 Jackson 30 Aug 1997 J. M. Ballard
7409
JSU
Triadenum walteri (Gmelin) Gleason
USAM000003939 Wilcox 27 Sep 1978 Robert R. Haynes
6939
USAM
Hypericum walteri J.F.Gmel.
TROY000018180 Autauga 15 Oct 1978 Robert Kral
63070
TROY
Triadenum walteri (Gmelin) Gleason
TROY000043328 Houston 29 Oct 2015 Alvin R. Diamond
27007
TROY
Hypericum walteri J.F.Gmel.
JSU127296 Jackson 31 Oct 1998 K. R. Brodeur
1523
JSU
Triadenum walteri (Gmelin) Gleason
UWAL0044030 Baldwin 18 Oct 2001 Larsen, H.S.
779
UWAL
Hypericum walteri J. F. Gmel.
UNA00027417 Hale 7 Sep 1952 R. L. Chermock
s.n.
UNA
Hypericum walteri J.G. Gmel.
TROY000036525 Bullock 02 Nov 2012 Bailee Dykes
1441
TROY
Triadenum walteri (Gmelin) Gleason
UWAL0012474 Montgomery 18 Sep 2012 Spaulding, Dan
13493
UWAL
Hypericum walteri J.G. Gmelin
UNA00010659 Greene 24 Sep 1967 Sidney McDaniel
9812
UNA
Hypericum walteri J.G. Gmel.
TROY000003941 Dale 06 Jun 2000 Michael Woods
8138
TROY
Triadenum walteri (Gmelin) Gleason
UNA00010688 Pickens 19 Sep 1985 Charles N. Horn
964
UNA
Hypericum walteri J.G. Gmel.
UNA00050503 Bibb 25 Jul 1995 Michelle Birk
302
UNA
Hypericum walteri J.G. Gmel.
UWAL0006198 Dale 25 Sep 1982 Kral, R.
69736
UWAL
Hypericum walteri J.F. Gmel
TROY000017709 Cherokee 26 Sep 2007 Terry Wayne Barger
304
TROY
Triadenum walteri (Gmelin) Gleason
USAM000003996 Mobile 10 Oct 1980 Michel G. Lelong
11617
USAM
Hypericum walteri J.F.Gmel.
JSU127362 Madison 15 Oct 1975 R. D. Whetstone
6973
JSU
Triadenum walteri (Gmelin) Gleason
UWAL0011979 Autauga 03 Sep 2012 Keener, Brian R.
7488
UWAL
Hypericum walteri J.F. Gmel.
TROY000043189 Covington 18 Oct 2015 Alvin R. Diamond
26938
TROY
Hypericum walteri J.F.Gmel.
UNA00010693 Greene 28 Sep 1962 Joab L. Thomas
713
UNA
Hypericum walteri J.G. Gmel.
TROY000018268 Marengo 16 Sep 2008 J. Kevin England
1131
TROY
Triadenum walteri (Gmelin) Gleason
JSU127363 Marshall 13 Sep 1991 D. D. Spaulding
885
JSU
Triadenum walteri (Gmelin) Gleason
USAM000003997 Baldwin 20 Oct 1977 Michel G. Lelong
9945
USAM
Hypericum walteri J.F.Gmel.
UWAL0012183 Clarke 28 Aug 2009 Keener, Brian R.
5590
UWAL
Hypericum walteri J.F. Gmel.
UNA00022806 Dallas 21 Aug 1993 Chris G. Haynes
s.n.
UNA
Hypericum walteri J.G. Gmel.
TROY000043179 Montgomery 24 Sep 2015 Alvin R. Diamond
26860
TROY
Hypericum walteri J.F.Gmel.
JSU127299 Jackson 29 Jun 1996 J. M. Ballard
6204
JSU
Triadenum walteri (Gmelin) Gleason
USAM000003999 Baldwin 30 Jul 1976 Michel G. Lelong
9316
USAM
Hypericum walteri J.F.Gmel.
UWAL0031856 Conecuh 18 Sep 1993 Kral, R.
83298
UWAL
Hypericum walteri Gmel.
JSU127298 Jackson 26 May 1999 K. R. Brodeur
1889
JSU
Triadenum walteri (Gmelin) Gleason
UWAL0044031 Baldwin 10 Nov 2000 Larsen, H.S.
616
UWAL
Hypericum walteri J. F. Gmel.
TROY000040257 Autauga 03 Sep 2012 Brian R. Keener
7488
TROY
Hypericum walteri J. F.Gmel.
TROY000018622 Sumter 08 Sep 2006 Brian R. Keener
3044
TROY
Triadenum walteri (Gmelin) Gleason
TROY000003944 Pike 11 Oct 2005 Alvin R. Diamond
15918
TROY
Triadenum walteri (Gmelin) Gleason
UNA00010701 Pickens 16 Sep 1967 Sidney McDaniel
9772
UNA
Hypericum walteri J.G. Gmel.
TROY000003947 Pike 08 Sep 1996 Jeanese Holmes
241
TROY
Triadenum walteri (Gmelin) Gleason
UNA00010716 Bibb 16 Sep 1985 Charles N. Horn
911
UNA
Hypericum walteri J.G. Gmel.
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