Discontinued Conservation Plant Releases

Updated 07/10/2008

The Plant Materials Program strives to maintain the most effective plants for natural resource conservation activities. The Program officially discontinues plant releases which have met their useful life for conservation work. Reasons for discontinuing a plant release might be that the plant has been replaced by newer, more effective materials, there is is little or no commercial production or no demand from commercial growers, or the plant has become or has the potential to become invasive. Discontinued plant releases are no longer produced by the Plant Materials Program. In most cases, the plant release has been removed from NRCS conservation practice stanadards and is no longer recommended for conservation activities.

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Release Name	Scientific Name	Common Name	Year Released	Origin	Reason for Discontinuing
F-149	Aeschynomene americana	American joinvetch	1969	native	no longer produced
Corto	Atriplex semibaccata	Australian saltbush	1977	introduced	no longer produced
Caucasian	Bothriochloa bladhii	Caucasian bluestem		introduced	no longer produced; potentially invasive
El Kan	Bothriochloa ischaemum	yellow bluestem		introduced	no longer produced; potentially invasive
Ganada	Bothriochloa ischaemum var. ischaemum	yellow bluestem	1979	introduced	no longer produced; potentially invasive
King Ranch	Bothriochloa ischaemum var. songarica	yellow bluestem	1941	introduced	no longer produced
Nakuru	Bromus catharticus	rescuegrass	1959	introduced	no longer produced, potentially invasive
Prairie	Bromus catharticus	rescuegrass	1946	introduced	no longer produced; replaced by other materials
Manchar	Bromus inermis	smooth brome	1943	introduced	potentially invasive
Panoche	Bromus rubens	red brome	1985	naturalized	no longer produced; potentially invasive
Sea Isle	Carex kobomugi	Japanese sedge	1984	introduced	potentially invasive
Riley Germplasm	Chamaecrista fasciculata	partridge pea	1999	native	re-released as cultivar 'Riley'
Tierra	Colutea arborescens	bladdersenna	1985	introduced	no longer produced; replaced by other materials
Corinth Germplasm	Cornus drummondii	roughleaf dogwood	1998	native	no longer produced
Jefferson Germplasm	Cornus drummondii	roughleaf dogwood	1998	native	no longer produced
Nicholson Germplasm	Cornus drummondii	roughleaf dogwood	1998	native	no longer produced
Tazewell Germplasm	Cornus drummondii	roughleaf dogwood	1998	native	no longer produced
Chemung	Coronilla varia	crownvetch	1964	introduced	replaced by other materials; potentially invasive
Emerald	Coronilla varia	crownvetch	1961	introduced	replaced by other materials; potentially invasive
Pomar	Dactylis glomerata	orchardgrass	1966	introduced	no longer produced
Kleberg	Dichanthium annulatum	bluestem	1954	introduced	no longer produced
Pretoria 90	Dichanthium annulatum	bluestem	1954	introduced	no longer produced
Gordo	Dichanthium aristatum	bluestem	1957	introduced	no longer produced
Medio	Dichanthium aristatum	bluestem	1954	introduced	no longer produced
Mission	Ehrharta calycina	perennial veldtgrass	1962	introduced	no longer produced; replaced by other materials
King Red	Elaeagnus angustifolia	Russian olive	1978	introduced	no longer produced; potentially invasive
Cardinal	Elaeagnus umbellata	autumn olive	1961	introduced	potentially invasive
Ellagood	Elaeagnus umbellata	autumn olive	1986	naturalized	potentially invasive
Elsberry	Elaeagnus umbellata	autumn olive	1979	introduced	replaced by other materials; potentially invasive
Redwing	Elaeagnus umbellata	autumn olive	1985	introduced	no longer produced, potentially invasive
Schwendimar	Elymus lanceolatus ssp. lanceolatus	thickspike wheatgrass	1994	native	unable to maintain seed purity in production
Primar	Elymus trachycaulus ssp. trachycaulus	slender wheatgrass	1946	native	no longer produced; replaced by other materials
A-67	Eragrostis curvula	Boer Lovegrass		introduced	no longer produced
A-84	Eragrostis curvula	Boer lovegrass	1950	introduced	no longer produced
Catalina	Eragrostis curvula	Boer lovegrass	1969	introduced	no longer produced
A-68	Eragrostis lehmanniana	Lehmann's lovegrass	1950	introduced	no longer produced; potentially invasive
Kuivato	Eragrostis lehmanniana	Lehmann's lovegrass	1977	introduced	no longer produced
Puhuima	Eragrostis lehmanniana	Lehmann's lovegrass	1976	introduced	no longer produced; potentially invasive
Palar	Eragrostis superba	Wilman lovegrass	1972	introduced	no longer produced
Cochise	Eragrostis trichophora	Atherstone lovegrass	1979	introduced	no longer produced; potentially invasive
Sumter Orange	Hemerocallis fulva	daylily	1993	naturalized	no longer produced
Rocker	Heteropogon contortus	tanglehead grass	1992	native	no longer produced
Lathco	Lathyrus sylvestris	flatpea	1972	naturalized	potentially invasive
Marfa	Leptochloa dubia	green sprangletop		native	no longer produced
Natob	Lespedeza bicolor	bicolor lespedeza	1952	introduced	no longer produced, potentially invasive
Amquail	Lespedeza thunbergii	Thunberg's lespedesa	1987	introduced	potentially invasive
Ambro	Lespedeza virgata	virgata lespedeza	1971	introduced	no longer produced
Asheville	Lolium arundinaceum	tall fescue	1952	introduced	no longer produced
Georgia 5	Lolium arundinaceum	tall fescue	1992	naturalized	no longer produced; replaced by other materials
Goar	Lolium arundinaceum	tall fescue	1946	introduced	no longer produced; replaced by other materials
Cling-Red	Lonicera maackii	Amur honeysuckle	1971	introduced	replaced by other materials; potentially invasive
Rem-Red	Lonicera maackii	Amur honeysuckle	1970	introduced	potentially invasive
Cascade	Lotus corniculatus	birdsfoot trefoil	1954	introduced	no longer produced
Kalo	Lotus corniculatus	birdsfoot trefoil	1976	introduced	no longer produced
Mackinaw	Lotus corniculatus	birdsfoot trefoil	1971	introduced	no longer produced; replaced by other materials
Marshfield	Lotus pedunculatus	big trefoil	1971	introduced	no longer produced
Orlando	Lupinus angustifolius	blue lupine	1963	native	no longer produced
A-130	Panicum antidotale	blue panicgrass	1950	introduced	no longer produced
Durham Germplasm	Panicum virgatum	switchgrass	2005	native	no longer produced
ND-WWG931	Pascopyrum smithii	western wheatgrass	1993	native	no longer produced
ND-WWG932	Pascopyrum smithii	western wheatgrass	1993	introduced	no longer produced
Doncorae	Paspalum nicorae	Brunswickgrass	1993	introduced	no longer produced
Wilmington	Paspalum notatum	Bahiagrass	1971	naturalized	no longer produced; replaced by other materials
Blue	Pennisetum ciliare	buffelgrass	1952	introduced	no longer produced
T-4464	Pennisetum ciliare	buffelgrass	1949	introduced	no longer produced
-unnamed-	Phalaris aquatica	Hardinggrass	1946	introduced	no longer produced; replaced by other materials
-unnamed-	Piptatherum miliaceum	smilograss	1947	introduced	no longer produced; replaced by other materials
P-4874	Poa bulbosa	bulbous bluegrass	1956	naturalized	replaced by other materials; potentially invasive
Draylar	Poa glauca ssp. glauca	upland bluegrass	1951	introduced	replaced by other materials
Newport	Poa pratensis	Kentucky bluegrass	1958	naturalized	replaced by other materials; potentially invasive
Service	Poa secunda	big bluegrass	1990	native	no longer produced
Athens	Quercus acutissima	sawtooth oak		introduced	no longer produced
Arnot	Robinia hispida var. fertilis	bristly locust	1969	native	no longer produced
Long	Salix barclayi	mountain willow	1986	native	no longer produced
Wilson	Salix bebbiana	Bebb willow	1986	native	no longer produced
Oliver	Salix brachycarpa	grayleaf willow	1986	native	no longer produced
Roland	Salix lucida ssp. lasiandra	Pacific willow	1986	native	no longer produced
Tombigbee	Sorghum bicolor	chickencorn	1950	naturalized	no longer produced
Wild	Sorghum bicolor ssp. drummondii	Sudangrass	1950	naturalized	no longer produced
Amur	Thinopyrum intermedium	intermediate wheatgrass	1952	introduced	no longer produced
Greenar	Thinopyrum intermedium	intermediate wheatgrass	1956	introduced	no longer produced; replaced by other materials
Mandan-759	Thinopyrum intermedium	intermediate wheatgrass		introduced	replaced by other materials
Topar	Thinopyrum intermedium	pubescent wheatgrass	1953	introduced	no longer produced; replaced by other materials
GSF-I	Tripsacum dactyloides	eastern gamagrass	1984	native	no longer able to identify clonal material
GSF-II	Tripsacum dactyloides	eastern gamagrass	1984	native	no longer able to identify clonal material
PMK-24	Tripsacum dactyloides	eastern gamagrass	1974	native	same genetic material as 'Pete'
Artex	Urochloa texana	Texas millet	1960	native	no longer produced
Dadeville	Vicia lutea	smooth yellow vetch	1969	naturalized	no longer produced
Thorsby	Vigna unguiculata	cowpea	1964	introduced	no longer produced

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