Pyracantha koidzumii

Family:ROSACEAE
Species:Pyracantha koidzumii (Hayata) Rehder
Common Name:Formosan Firethorn
Habitat:**
Associated Ecological Communities:**
Growth Habit:Shrub
Duration:Perennial
Category:Vascular
USDA Symbol:PYKO
Plant Notes:Formosan Firethorn is an introduced evergreen shrub in the Rose family (Rosaceae). It is native to Taiwan, and is one of the most widely cultivated species in the genus in Alabama. It persists or escapes around old home sites, along roadsides, on fence rows, and in disturbed woodlands. It is a large shrub reaching 15-20 feet in height. The stems are upright to arching with short, spine tipped lateral branches. The reddish-brown to gray bark is smooth initially, later flaking in plates. Young twigs are pubescent, becoming glabrous with age. Leaves are alternate or fascicled, short petiolate, narrowly elliptic to obovate in outline, and glabrous or glabrescent on the lower surface. The margins are entire or with 1-3 shallow teeth. The upper surface of the leaf is dark green, the lower surface is lighter green. The apex of the leaf is truncate (straight) or retuse (rounded with a small notch). Flowers are produced in corymbs. Individual flowers have 5 triangular green sepals, 5 white petals, and 15-20 stamens. The hypanthium is pubescent. The fruit is an orange or red pome with persistent incurved sepals at the apex. Formosan Firethorn is listed as an invasive species by The Invasive Plant Atlas of the United States.—A. Diamond
Taxonomic Notes:**
Status:Not Native
References:**
Specimen: View specimen details in the Alabama Herbarium Consortium Specimen Database

** Not applicable or data not available.

Classification

FamilyROSACEAE - Rose family
Genus Pyracantha
Species Pyracantha koidzumii (Hayata) Rehder - Formosan Firethorn

Citation

Citation PYRACANTHA KOIDZUMII (Hayata) Rehder, J. Arnold Arbor. 1: 261. 1920.
Basionym: Cotoneaster koidzumii Hayata 1911.
Type: TAIWAN

** Not applicable or data not available.

Synonyms

SynonymFull CitationBasionymType
Cotoneaster formosana Cotoneaster formosana Hayata, J. Coll. Sci. Imp. Univ. Tokyo 30(1): 101. 1911. TAIWAN
Cotoneaster koidzumii Cotoneaster koidzumii Hayata, J. Coll. Sci. Imp. Univ. Tokyo 30(1): 101. 1911. TAIWAN
Cotoneaster taitoensis Cotoneaster taitoensis Hayata, J. Coll. Sci. Imp. Univ. Tokyo 30(1): 102. 1911. TAIWAN
Pyracantha koidzumii var. taitoensis Pyracantha koidzumii (Hayata) Rehder, var. taitoensis (Hayata) Masamune, Rep. (Annual) Taihoku Bot. Gard. 3: 124. 1932.Cotoneaster taitoensis Hayata 1911. 

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, Bibb, Blount, Bullock, Butler, Crenshaw, Dale, Dallas, Houston, Lee, Lowndes, Macon, Marengo, Montgomery, Pike, Shelby, Sumter

Counties represented by specimen data listed below:

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

Range of years during which specimens were collected: -

Barcode / Accession No. County Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
Image
UWAL0015189 Houston 27 Jan 2013 Diamond, Alvin R.
23694
UWAL
Pyracantha koidzumii (Hayata) Rehder
TROY000008458 Pike 07 Nov 2002 Diamond, Alvin R.
13727
TROY
Pyracantha koidzumii (Hayata) Rehder
UWAL0010762 Macon 17 May 2012 Diamond, Alvin R.
23047
UWAL
Pyracantha koidzumii (Hayata) Reher
TROY000022871 Shelby 27 Apr 2002 Spaulding, Daniel D.
11229
TROY
Pyracantha koidzumii (Hayata) Rehder
UWAL0049938 Lowndes 31 Jul 2020 Diamond, Alvin R.
29370
UWAL
Pyracantha koidzumii (Hayata) Rehder
TROY000044739 Autauga 24 Jan 2017 Parker, Matthew R.
339
TROY
Pyracantha koidzumii (Hayata) Rehder
AUA000026930 Bibb 30 Jan 2009 England, J. Kevin
1573
AUA
Pyracantha Koidzumii (Hayata) Rehder
UWAL0013133 Houston 27 Jan 2013 Diamond, Alvin R.
23694
UWAL
Pyracantha koidzumii (Hayata) Rehder
ALNHS00004485 Marengo 06 Oct 2016 Barger, T. Wayne
SP#2723
ALNHS
Pyracantha koidzumii (Hayata) Rehd.
TROY000036601 Montgomery 21 Dec 2012 Diamond, Alvin R.
23603
TROY
Pyracantha koidzumii (Hayata) Rehder
TROY000034976 Macon 17 May 2012 Diamond, Alvin R.
23047
TROY
Pyracantha koidzumii (Hayata) Rehder
UWAL0013510 Bullock 02 Nov 2012 Dykes, Bailee
1461
UWAL
Pyracantha koidzumii (Hayata) Rehder
ALNHS00004398 Lee 13 May 2016 Taylor, Chris T.
CSP-296
ALNHS
Pyracantha koidzumii (Hayata) Rehd.
UNA00070134 Sumter 28 Aug 2008 Schotz, Alfred
2108
UNA
Pyracantha koidzumii (Hayata) Rehd.
UWFP016026 Baldwin 20 Jul 1990 James R. Burkhalter
12117
UWFP
Pyracantha koidzumii (Hayata) Rehder
TROY000008456 Crenshaw 04 Jan 2004 Diamond, Alvin R.
14280
TROY
Pyracantha koidzumii (Hayata) Rehder
UWAL0046756 Autauga 24 Jan 2017 Parker, Matthew R.
339
UWAL
Pyracantha koidzumii (Hayata) Rehder
TROY000042929 Dallas 14 May 2015 Diamond, Alvin R.
26356
TROY
Pyracantha koidzumii (Hayata) Rehder
ALNHS00004398 Lee 13 May 2016 Taylor, Chris T.
CSP-296
ALNHS
Pyracantha koidzumii (Hayata) Rehd.
UWAL0010609 Montgomery 23 Oct 2011 Diamond, Alvin R.
22653
UWAL
Pyracantha koidzumii (Hayata) Rehder
TROY000022836 Bibb 30 Jan 2009 England, J. Kevin
1573
TROY
Pyracantha koidzumii (Hayata) Rehder
TROY000033893 Montgomery 23 Oct 2011 Diamond, Alvin R.
22653
TROY
Pyracantha koidzumii (Hayata) Rehder
ALNHS00004485 Marengo 06 Oct 2016 Barger, T. Wayne
SP#2723
ALNHS
Pyracantha koidzumii (Hayata) Rehd.
UWAL0003835 Bibb 30 Jan 2009 England, J. Kevin
1573
UWAL
Pyracantha koidzumii (Hayata) Rehder
UNA00069992 Bibb 30 Jan 2009 England, J. Kevin
1573
UNA
Pyracantha koidzumii (Hayata) Rehd.
TROY000008457 Dale 20 Apr 2000 Pennington, Tiffany
550
TROY
Pyracantha koidzumii (Hayata) Rehder
TROY000032997 Butler 10 Jun 2011 Diamond, Alvin R.
22233
TROY
Pyracantha koidzumii (Hayata) Rehder
TROY000047744 Autauga 02 Nov 2017 Parker, Matthew R.
1453
TROY
Pyracantha koidzumii (Hayata) Rehder
UWAL0047316 Autauga 02 Nov 2017 Parker, Matthew R.
1453
UWAL
Pyracantha koidzumii (Hayata) Rehder
UWAL0030327 Dallas 14 May 2014 Diamond, Alvin R.
26356
UWAL
Pyracantha koidzumii (Hayata) Rehder
UNA00059555 Pike 07 Nov 2002 Diamond, Alvin R.
13727
UNA
Pyracantha koidzumii (Hayata) Rehd.
UNA00069348 Marengo 04 Sep 2008 England, J. Kevin
1018
UNA
Pyracantha koidzumii (Hayata) Rehd.
TROY000036293 Bullock 02 Nov 2012 Dykes, Bailee
1461
TROY
Pyracantha koidzumii (Hayata) Rehder
UWAL0013846 Montgomery 21 Dec 2012 Diamond, Alvin R.
23603
UWAL
Pyracantha koidzumii (Hayata) Rehder
UWAL0003837 Marengo 04 Sep 2008 England, J. Kevin
1018
UWAL
Pyracantha koidzumii (Hayata) Rehd.
UWAL0004972 Butler 10 Jun 2011 Diamond, Alvin R.
22233
UWAL
Pyracantha koidzumii (Hayata) Rehder
UNA00062150 Crenshaw 04 Jan 2004 Diamond, Alvin R.
14280
UNA
Pyracantha koidzumii (Hayata) Rehd.
TROY000049879 Lowndes 31 Jul 2020 Diamond, Alvin R.
29370
TROY
Pyracantha koidzumii (Hayata) Rehder
TROY000022757 Marengo 04 Sep 2008 England, J. Kevin
1018
TROY
Pyracantha koidzumii (Hayata) Rehder
UWAL0037845 Blount 04 Feb 2017 Spaulding, Daniel D.
14746
UWAL
Pyracantha koidzumii (Hayata) Rehd.
TROY000037953 Houston 27 Jan 2013 Diamond, Alvin R.
23694
TROY
Pyracantha koidzumii (Hayata) Rehder
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