Assertion: poison ivy's sap | /r/MadeOf | oxalate crystals
Facets:
Source sentences:
text: Interesting Fact: The sap of the Virginia Creeper contains oxalate crystals which can cause irritation and possibly skin rash.
text: This deciduous vine is hardy from zone 3 to zone 9.The sap of the Virginia Creeper contains oxalate crystals which can cause irritation and possibly skin rash.
text: "Some literature suggests that Virginia Creeper is not poisonous, but the sap of the plant contains oxalate crystals and can cause skin irritation and rashes in some people.
text: Info on the internet sometimes suggests that Virginia Creeper is not poisonous, but the sap of the Virginia Creeper contains oxalate crystals and can cause skin irritation and rashes in small percent of people.