Medical Subject Headings

Last uploaded: March 22, 2026

Id	http://purl.bioontology.org/ontology/MESH/D012251 http://purl.bioontology.org/ontology/MESH/D012251
Preferred Name	Toxicodendron
Definitions	A genus (formerly part of Rhus genus) of shrubs, vines, or trees that yields a highly allergenic oleoresin which causes a severe contact dermatitis (DERMATITIS, TOXICODENDRON). The most toxic species are Toxicodendron vernix (poison sumac), T. diversilobum (poison oak), and T. radicans (poison ivy). T. vernicifera yields a useful varnish from which certain enzymes (laccases) are obtained.
Synonyms	Rhus toxicodendrons Ivies, Poison Rhus toxicodendron Poison Sumac Oaks, Poison Toxicodendrons Poison Ivies Poison Oaks Poison Ivy Sumac, Poison Oak, Poison Ivy, Poison Poison Sumacs toxicodendron, Rhus Sumacs, Poison Poison Oak See more See less
Type	http://www.w3.org/2002/07/owl#Class

definition	A genus (formerly part of Rhus genus) of shrubs, vines, or trees that yields a highly allergenic oleoresin which causes a severe contact dermatitis (DERMATITIS, TOXICODENDRON). The most toxic species are Toxicodendron vernix (poison sumac), T. diversilobum (poison oak), and T. radicans (poison ivy). T. vernicifera yields a useful varnish from which certain enzymes (laccases) are obtained.
altLabel	Rhus toxicodendrons Ivies, Poison Rhus toxicodendron Poison Sumac Oaks, Poison Toxicodendrons Poison Ivies Poison Oaks Poison Ivy Sumac, Poison Oak, Poison Ivy, Poison Poison Sumacs toxicodendron, Rhus Sumacs, Poison Poison Oak See more See less
prefLabel	Toxicodendron
Machine permutation	93; was RHUS 1963-92; TOXICODENDRON was see RHUS 1966-92
HN	93; was RHUS 1963-92; TOXICODENDRON was see RHUS 1986-92
type	http://www.w3.org/2002/07/owl#Class
tui	T002
TERMUI	T442539 T442536 T442535 T683619 T036390 T442538 T036391 T442537 See more See less
TH	NLM (2002) NLM (1966) NLM (2008) UNK (19XX)
MMR	20210630
notation	D012251
Inverse of RO	http://purl.bioontology.org/ontology/MESH/D011040
Semantic type UMLS property	http://purl.bioontology.org/ontology/STY/T002
RR	txid690247 txid289774
Inverse of AQ	http://purl.bioontology.org/ontology/MESH/Q000648 http://purl.bioontology.org/ontology/MESH/Q000276 http://purl.bioontology.org/ontology/MESH/Q000378 http://purl.bioontology.org/ontology/MESH/Q000469 http://purl.bioontology.org/ontology/MESH/Q000009 http://purl.bioontology.org/ontology/MESH/Q000033 http://purl.bioontology.org/ontology/MESH/Q000821 http://purl.bioontology.org/ontology/MESH/Q000254 http://purl.bioontology.org/ontology/MESH/Q000196 http://purl.bioontology.org/ontology/MESH/Q000145 http://purl.bioontology.org/ontology/MESH/Q000737 http://purl.bioontology.org/ontology/MESH/Q000382 http://purl.bioontology.org/ontology/MESH/Q000502 http://purl.bioontology.org/ontology/MESH/Q000506 http://purl.bioontology.org/ontology/MESH/Q000187 http://purl.bioontology.org/ontology/MESH/Q000235 http://purl.bioontology.org/ontology/MESH/Q000201 http://purl.bioontology.org/ontology/MESH/Q000633 http://purl.bioontology.org/ontology/MESH/Q000166 http://purl.bioontology.org/ontology/MESH/Q000528 See more See less
FX	D011040
DX	19930101
cui	C0330962 C0330961 C0446292 C0035510 C0684339
DC	1
MN	B01.875.800.575.912.250.044.744
AN	DERMATITIS, TOXICODENDRON is available
AQL	AE AH CH CL CY DE EM EN GD GE IM ME MI PH PO PS RE TO UL VI
Inverse of RB	txid690247 txid289774 txid43852
OL	use TOXICODENDRON to search RHUS 1966-92
MDA	19990101
subClassOf	http://purl.bioontology.org/ontology/MESH/D027926

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