Australian umbrella tree
General poisoning notes:
Australian
umbrella tree (Brassaia actinophylla) is an ornamental shrub grown
indoors in Canada. This plant caused toxic symptoms in a dog after it ingested
the leaves. Experimental work on rats caused death after they ingested 3.2 g of
leaf tissue over 7 days. Symptoms in the rats included extramedullary
hematopoiesis in the spleen, with black tarry gastrointestinal content caused
by blood (Quam et al. 1985).
Nomenclature:
Scientific Name: Brassaia actinophylla Endl.
Vernacular
name(s): Australian umbrella tree
Scientific family
name: Araliaceae
Vernacular family
name: aralia
Geographic Information
Plant or plant
parts used in or around the home.
Toxic parts:
Leaves
Notes on Toxic plant chemicals:
Chemical analysis
(Quam et al. 1985) revealed that leaves contain oxalates and saponins as well
as some cardiac glycosides and alkaloids.
Toxic plant chemicals:
Oxalate
Animals/Human Poisoning:
Note: When an
animal is listed without additional information, the literature (as of 1993)
contained no detailed explanation.
Dogs
General symptoms of
poisoning:
Anorexia,
ataxia, vomiting
Notes on poisoning:
A poodle that
ingested Australian umbrella tree leaves suffered from vomiting, leucopenia,
anorexia, and ataxia. The leaves were found to contain 0.9%-1.5% oxalate
crystals by weight (Spoerke and Smolinske 1990).
Humans
General symptoms of
poisoning:
Erythema
Rodents
General symptoms of
poisoning:
Death,
hemorrhage.
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