Juglans nigra

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Distribution Map: Based on vouchered plant specimens only. View county names by placing the mouse cursor over a particular county.

Species Distribution Map
Family:JUGLANDACEAE
Species:Juglans nigra L.
Common Name:Black Walnut
Habitat:Floodplain hardwood forests.
Associated Ecological Communities:**
Growth Habit:Tree
Duration:Perennial
Category:Vascular
USDA Symbol:JUNI
Plant Notes:Black Walnut is a native deciduous tree in the Walnut family (Juglandaceae). It can be found throughout Alabama. Black Walnut occurs in rich hardwood forests, in ravines, and along streams and rivers. It is a medium to large tree, reaching heights of 120 feet. The bark is dark gray to almost black and deeply furrowed with narrow ridges. Leaves are alternate, petiolate, pinnately compound with 15-19 leaflets, the largest leaflets near the middle of the leaf. The terminal leaflet is often poorly formed or missing. The leaflets are lanceolate in outline, pubescent and glandular below, and with serrate margins. The leaves are dark green above and yellowish green below. Both the wood and leaves of Black Walnut have a strong odor when damaged. The leaves turn bright yellow before falling in the autumn. Male flowers are produced in drooping green catkins on the previous year’s growth. Female flowers are solitary or paired and terminal on the current year’s growth. The fruit is a drupe. The fruit has a fleshy indehiscent husk surrounding the nut. Black Walnut seed are edible and used in pies, cakes, cookies, and ice cream. The wood is heavy with a dark heartwood. It is used for furniture, gun stocks, and paneling. Black Walnut produces a substance known as Juglone that prevents many plants (especially members of the Nightshade family like Tomato) from growing under them. The husks of Black Walnut fruit can be used to make a yellow or brownish dye. They were used to dye Confederate Uniforms during the Civil War due to the lack of commercial dyes available in the south. Black Walnut trees are often available from nurseries. They prefer a moist, organically rich, well-drained soil in full sun. It is intolerant of shade, and difficult to transplant because of its long taproot.--A. Diamond
Taxonomic Notes:**
Status:Native, FACU (NWI), G5 (Global Rank)
References:**
Specimen: View specimen details in the Alabama Herbarium Consortium Specimen Database

** Not applicable or data not available.

Classification

FamilyJUGLANDACEAE - Walnut family
Genus Juglans
Species Juglans nigra L. - Black Walnut

Citation

Citation Juglans nigra Linnaeus, Sp. Pl. 2: 997. 1753.
Basionym: **
Type: Without data (lectotype: LINN 1129.5). Lectotypified by J.L. Reveal et al., Huntia 7: 226. 1987.

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Wallia nigra    

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, Choctaw, Clarke, Cleburne, Coffee, Colbert, Conecuh, Coosa, Covington, Crenshaw, Cullman, Dale, Dallas, DeKalb, Escambia, Etowah, Fayette, Franklin, Greene, Jackson, Jefferson, Lauderdale, Lawrence, Lee, Lowndes, Macon, Madison, Marengo, Marshall, Mobile, Monroe, Montgomery, Morgan, Pike, Randolph, Russell, Shelby, Sumter, Talladega, Tallapoosa, Tuscaloosa

Counties represented by specimen data listed below:

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

Range of years during which specimens were collected: 1883 - 1997

Barcode / Accession No. County Coll. Date Collector &
Collection No.		 Herbarium &
Herbarium Name Used		 Image
TROY000052142 Montgomery 07 May 2021 Diamond, Alvin R.
29612		 TROY
Juglans nigra L.
JSU127758 Lawrence 7 Aug 1996 Whetstone, R. David
18326		 JSU
Juglans nigra Linnaeus
AUA_ACC_58102 Crenshaw 23 Aug 1998 Diamond, Alvin R.
11377		 AUA
Juglans Nigra L.
JSU127739 Calhoun 30 Jul 1986 Lawler, Carol L.
878		 JSU
Juglans nigra Linnaeus
AUA_ACC_14666 Macon 10 May 1969 Seay, J.R.
126		 AUA
Juglans Nigra L.
UNA00031981 Madison 04 May 1883 Mohr, Charles
s.n.		 UNA
Juglans nigra L.
AUA_ACC_39152 Dallas 6 Sep 1982 Gunn, Scott C.
1150		 AUA
Juglans Nigra L.
UNA00031961 Tuscaloosa 25 Apr 1969 Thomas, Joab L.
2099		 UNA
Juglans nigra L.
AUA_ACC_43601 Monroe 3 Sep 1985 Diamond, Alvin R.
1717		 AUA
Juglans Nigra L.
JSU143864 Calhoun 01 Jul 1969 Cofield, Jan
s.n.		 JSU
Juglans nigra Linnaeus
TROY000040332 Marengo 01 Oct 2011 England, J. Kevin
3202		 TROY
Juglans nigra Linnaeus
AUA_ACC_2584 Tallapoosa 24 Apr 1965 Brown, Jimmy E.
 AUA
Juglans Nigra L.
UWAL0006406 Sumter 29 Aug 1993 Stanton, Lee E.
s.n.		 UWAL
Juglans nigra L.
JSU143038 Randolph 20 Jul 1986 Nixon, Christopher F.
2413		 JSU
Juglans nigra Linnaeus
TROY000006393 Dale 16 May 1995 McCarter, Robby
5		 TROY
Juglans nigra Linnaeus
UWAL0038596 Lawrence 01 Sep 2018 England, J. Kevin
9437		 UWAL
Juglans nigra Linnaeus
UNA00022769 Marengo 09 Sep 1993 Haynes, Chris G.
s.n.		 UNA
Juglans nigra L.
AUA_ACC_67627 Greene 10 Apr 2007 Mordecai, C.C.
7-10		 AUA
Juglans Nigra L.
TROY000006397 Pike 07 Nov 2002 Terrell, Christopher
8		 TROY
Juglans nigra Linnaeus
JSU127757 Lawrence 7 Aug 1996 Whetstone, R. David
18326		 JSU
Juglans nigra Linnaeus
AUA000038319 Morgan 5 Jun 2016 England, J. Kevin
6537		 AUA
Juglans Nigra L.
JSU127743 Calhoun 6 May 1986 Lawler, Carol L.
288		 JSU
Juglans nigra Linnaeus
AUA000043798 Madison 8 Oct 2020 Hansen, Curtis J.
7872		 AUA
Juglans Nigra L.
AUA_ACC_40366 Cherokee 5 May 1972 Hale, A.R.
129		 AUA
Juglans Nigra L.
TROY000020740 Chilton 03 May 2005 Diamond, Alvin R.
15306		 TROY
Juglans nigra Linnaeus
AUA_ACC_53132 Pike 30 Jun 1989 Diamond, Alvin R.
5932		 AUA
Juglans Nigra L.
JSU143863 Jefferson 08 May 1972 Davis, Pam
s.n.		 JSU
Juglans nigra Linnaeus
TROY000006399 Pike 08 Nov 2002 Weber, Jenna
8		 TROY
Juglans nigra Linnaeus
AUA_ACC_72227 Lawrence 10 May 2004 England, J. Kevin
4221		 AUA
Juglans Nigra L.
UWAL0051925 Madison 04 Oct 2020 England, J. Kevin
11258		 UWAL
Juglans nigra L.
JSU127764 Randolph 22 Aug 1987 Nixon, Christopher F.
3334		 JSU
Juglans nigra Linnaeus
JSU127760 Marshall 20 Aug 1992 Spaulding, Daniel D.
2700		 JSU
Juglans nigra Linnaeus
UNA00022553 Montgomery 05 Jun 1969 Thomas, Joab L.
2155		 UNA
Juglans nigra L.
UWAL0013739 Coosa 20 May 2013 Diamond, Alvin R.
24055		 UWAL
Juglans nigra Linnaeus
TROY000006398 Pike 07 Nov 2002 Walters, Olivia
7		 TROY
Juglans nigra Linnaeus
AUA_ACC_36637 Tallapoosa 1 Oct 1972 Bowers, John R.
94		 AUA
Juglans Nigra L.
UNA00026042 Tuscaloosa 07 Oct 1995 Lewis, Amy H.
27		 UNA
Juglans nigra L.
UWAL0006407 Sumter 26 Aug 1993 Stanton, Lee E.
s.n.		 UWAL
Juglans nigra L.
JSU127742 Calhoun 11 May 1982 Whetstone, R. David
11041		 JSU
Juglans nigra Linnaeus
JSU127749 Cullman 4 Jul 1997 Spaulding, Daniel D.
9669		 JSU
Juglans nigra Linnaeus
AUA000038088 Jackson 21 Jul 2017 England, J. Kevin
8239		 AUA
Juglans Nigra L.
TROY000006390 Covington 14 Apr 1997 Holmes, Jeanese
L-1		 TROY
Juglans nigra Linnaeus
AUA000036725 Calhoun 16 Apr 2016 Pruitt, S.
30		 AUA
Juglans Nigra L.
JSU127753 Lawrence 26 Apr 1993 Whetstone, R. David
16485		 JSU
Juglans nigra Linnaeus
AUA_ACC_41630 Etowah 4 May 1973 Mason, Janet
191		 AUA
Juglans Nigra L.
UWAL0032593 Morgan 05 Jun 2016 England, J. Kevin
6537		 UWAL
Juglans nigra Linnaeus
UNA00025261 Etowah 21 Jun 1991 Herring, Connie
15		 UNA
Juglans nigra L.
AUA_ACC_12485 Lee 19 May 1964 Hicks, James T.
 AUA
Juglans Nigra L.
JSU127761 Morgan 29 Mar 1997 Whetstone, R. David
s.n.		 JSU
Juglans nigra Linnaeus
TROY000037650 Coosa 20 May 2013 Diamond, Alvin R.
24055		 TROY
Juglans nigra Linnaeus
ALNHS00001249 Clarke 22 May 2012 Horne, Howard E.
SWS-168		 ALNHS
Juglans nigra L.
JSU127762 Marshall 7 Aug 1975 Whetstone, R. David
5975		 JSU
Juglans nigra Linnaeus
JSU127738 Calhoun 30 Jul 1986 Lawler, Carol L.
831		 JSU
Juglans nigra Linnaeus
AUA_ACC_58481 Escambia 18 Apr 1999 Searcy, Darryl
 AUA
Juglans Nigra L.
UNA00053915 Blount 26 Jul 1997 Keener, Brian R.
287		 UNA
Juglans nigra L.
SAMF0002316 Greene 28 Jul 2012 Davenport, Lawrence J.
5294		 SAMF
Juglans nigra Linnaeus
JSU127752 Jefferson 23 Jul 1983 Whetstone, R. David
13481		 JSU
Juglans nigra Linnaeus
AUA_ACC_47434 Conecuh 3 Oct 1987 Diamond, Alvin R.
3710		 AUA
Juglans Nigra L.
JSU127768 Talladega 6 Jun 1980 Carlisle, N.J.
s.n.		 JSU
Juglans nigra Linnaeus
TROY000020741 Jackson 10 Nov 2002 Edmonds, Wes
22		 TROY
Juglans nigra Linnaeus
USAM000007513 Mobile 09 Oct 1968 LeLong, Michel G.
4803		 USAM
Juglans nigra Linnaeus
UWAL0019501 Lauderdale 09 Jul 2015 England, J. Kevin
5524		 UWAL
Juglans nigra Linnaeus
JSU127765 Randolph 19 Aug 1986 Nixon, Christopher F.
2800		 JSU
Juglans nigra Linnaeus
TROY000006388 Coffee 27 Aug 1999 Martin, Brian H.
149		 TROY
Juglans nigra Linnaeus
UWAL0036535 Jackson 21 Jul 2017 England, J. Kevin
8239		 UWAL
Juglans nigra Linnaeus
JSU127766 Shelby 4 Apr 1993 Whetstone, R. David
16255		 JSU
Juglans nigra Linnaeus
AUA000040138 Colbert 20 Aug 2014 Barger, T. Wayne
FH537		 AUA
Juglans Nigra L.
TROY000006396 Pike 16 Apr 1997 Trotter, Elizabeth
6		 TROY
Juglans nigra Linnaeus
JSU127754 DeKalb 5 Jul 1969 Wright, Sherry
s.n.		 JSU
Juglans nigra Linnaeus
UWAL0006405 Sumter 26 Aug 1993 Stanton, Lee E.
s.n.		 UWAL
Juglans nigra L.
JSU127746 Choctaw 1 Nov 1997 Whetstone, R. David
19166		 JSU
Juglans nigra Linnaeus
UWAL0008716 Marengo 01 Oct 2011 England, J. Kevin
3202		 UWAL
Juglans nigra Linnaeus
AUA_ACC_21413 Fayette 2 May 1970 Rush, Larry
.128		 AUA
Juglans Nigra L.
TROY000043076 Lawrence 10 May 2013 England, J. Kevin
4221		 TROY
Juglans nigra Linnaeus
AUA_ACC_10738 Lee 16 May 1963 Kennamer, James Earl
 AUA
Juglans Nigra L.
JSU127751 Jackson 11 Jul 1993 Spaulding, Daniel D.
4973		 JSU
Juglans nigra Linnaeus
TROY000048443 Jefferson 16 Oct 2015 Whatley, Grace D.
14		 TROY
Juglans nigra Linnaeus
AUA_ACC_73115 Lauderdale 9 Jul 2015 England, J. Kevin
5524		 AUA
Juglans Nigra L.
UWAL0044786 Jackson 02 Jun 2018 England, J. Kevin
9222		 UWAL
Juglans nigra Linnaeus
UNA00031986 Marshall 24 Apr 1966 Brown, Donald H.
31		 UNA
Juglans nigra L.
AUA_ACC_22979 Clarke 20 Nov 1971 Henley, Nancy S.
198		 AUA
Juglans Nigra L.
JSU127741 Calhoun 20 Sep 1992 Spaulding, Daniel D.
2881		 JSU
Juglans nigra Linnaeus
TROY000020742 Marshall 11 Jun 1993 Ballard, J. Mark
2542		 TROY
Juglans nigra Linnaeus
JSU127750 DeKalb 15 May 1996 Whetstone, R. David
17569		 JSU
Juglans nigra Linnaeus
JSU127767 Talladega 6 Oct 1979 Knight, Gary R.
066		 JSU
Juglans nigra Linnaeus
JSU144257 Cleburne 26 Jun 1969 Ballard, Sarah
s.n.		 JSU
Juglans nigra Linnaeus
TROY000006391 Covington 20 Oct 2000 Crowell, Julie
2		 TROY
Juglans nigra Linnaeus
AUA_ACC_61623 Russell 18 Jun 2002 Gil, Glenda
2001-240		 AUA
Juglans Nigra L.
UNA00026259 Marengo 01 Oct 1995 Burk, David H.
221		 UNA
Juglans nigra L.
JSU127759 Madison 22 Sep 1995 Whetstone, R. David
s.n.		 JSU
Juglans nigra Linnaeus
AUA_ACC_64919 Chilton 3 May 2005 Diamond, Alvin R.
15306		 AUA
Juglans Nigra L.
UWAL0050911 Tallapoosa 17 Apr 1973 Villadsen, Martha
166		 UWAL
Juglans nigra L.
TROY000036286 Bullock 29 Mar 2012 Dykes, Bailee
437		 TROY
Juglans nigra Linnaeus
SAMF0002319 Jefferson 16 Jul 1986 Davenport, Lawrence J.
2491		 SAMF
Juglans nigra Linnaeus
UWAL0017239 Lawrence 10 May 2013 England, J. Kevin
4221		 UWAL
Juglans nigra Linnaeus
JSU127736 Calhoun 30 Apr 1969 Morello, Sandra
s.n.		 JSU
Juglans nigra Linnaeus
TROY000020520 Butler 29 Jul 2008 Diamond, Alvin R.
19653		 TROY
Juglans nigra Linnaeus
UWAL0013516 Bullock 29 Mar 2012 Dykes, Bailee
437		 UWAL
Juglans nigra Linnaeus
JSU127747 Clarke 31 Oct 1997 Whetstone, R. David
19008		 JSU
Juglans nigra Linnaeus
JSU127735 Bibb 13 May 1983 Whetstone, R. David
13465		 JSU
Juglans nigra Linnaeus
JSU127737 Calhoun 29 Jun 1968 Johnson, Stephen C.
X-49-128		 JSU
Juglans nigra Linnaeus
UWAL0043238 Baldwin 29 Aug 2001 Larsen, Harry S.
940		 UWAL
Juglans nigra L.
TROY000006387 Coffee 16 Sep 2000 Cole, Anthony
13		 TROY
Juglans nigra Linnaeus
UNA00048677 Lowndes 09 Jul 1988 Burckhalter, Robert
1421		 UNA
Juglans nigra L.
UWAL0047188 Autauga 26 May 2017 Parker, Matthew R.
891		 UWAL
Juglans nigra Linnaeus
TROY000006395 Dale 07 Nov 2002 Shea, Thomas
6		 TROY
Juglans nigra Linnaeus
AUA_ACC_1992 Lee 10 May 1955 Alford, H.G.
 AUA
Juglans Nigra L.
UWAL0032621 Franklin 12 Jun 2016 England, J. Kevin
6571		 UWAL
Juglans nigra Linnaeus
JSU127745 Cherokee 27 Oct 1983 Whetstone, R. David
13840		 JSU
Juglans nigra Linnaeus
SAMF0002318 Shelby 20 Sep 1988 Davenport, Lawrence J.
2597		 SAMF
Juglans nigra Linnaeus
AUA_ACC_58183 Tallapoosa 2 May 1998 Tyler, Patricia J.
TYLER210		 AUA
Juglans Nigra L.
JSU127744 Calhoun 1 Jul 1969 Morello, Sandra
s.n.		 JSU
Juglans nigra Linnaeus
TROY000006389 Coffee 02 Nov 2002 Colbert, Steven
s.n.		 TROY
Juglans nigra Linnaeus
AUA_ACC_42300 Monroe 3 Jul 1972 Hybart, Michael G.
122		 AUA
Juglans Nigra L.
JSU127748 Clarke 31 Oct 1997 Whetstone, R. David
19008		 JSU
Juglans nigra Linnaeus
JSU127763 Randolph 28 Jun 1969 Landers, Kenneth E.
s.n.		 JSU
Juglans nigra Linnaeus
AUA_ACC_46900 Jackson 23 Jul 1983 Dodd, J.K.
105		 AUA
Juglans Nigra L.
TROY000006392 Dale 28 Sep 2000 Pennington, Tiffany
1074		 TROY
Juglans nigra Linnaeus
UWAL0043237 Baldwin 26 Jun 2001 Larsen, Harry S.
838		 UWAL
Juglans nigra L.
UWAL0052828 Bibb 24 Jul 2019 Keener, Brian R.
11484		 UWAL
Juglans nigra L.
JSU143862 Calhoun 15 Jul 1965 Tudor, Jessica
s.n.		 JSU
Juglans nigra Linnaeus
UWAL0045403 Bullock 23 Sep 2018 Horne, Howard E.
4661		 UWAL
Juglans nigra Linnaeus
TROY000006394 Dale 21 Oct 2000 Johnson, Stephanie
7		 TROY
Juglans nigra Linnaeus
SAMF0002317 Blount 17 Jul 2012 Davenport, Lawrence J.
5254		 SAMF
Juglans nigra Linnaeus
UWAL0015494 Greene 28 Jul 2012 Davenport, L.J.
5294		 UWAL
Juglans nigra L.
JSU127740 Calhoun 27 May 1982 Whetstone, R. David
11168		 JSU
Juglans nigra Linnaeus
AUA_ACC_21412 Crenshaw 9 May 1970 Montgomery, John
151		 AUA
Juglans Nigra L.
JSU127756 Jackson 22 May 1998 Brodeur, Kristin R.
720		 JSU
Juglans nigra Linnaeus
UNA00047182 Barbour 20 Jun 1997 MacDonald, John R.
10739		 UNA
Juglans nigra L.
AUA_ACC_67612 Cullman 29 Mar 2007 Hinkle, R.S.
17-13		 AUA
Juglans Nigra L.
JSU127755 DeKalb 30 Jul 1975 Whetstone, R. David
5615		 JSU
Juglans nigra Linnaeus
TROY000046770 Autauga 26 May 2017 Parker, Matthew R.
891		 TROY
Juglans nigra Linnaeus
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