Parsonsia

Parsonsia

Australian genus of woody vines in the Apocynaceae family. P. eucalyptophylla, P. lilacina and P. straminea are the species that are most suspect. Firm evidence about their toxic effects is lacking but some can cause nitrate-nitrite poisoning. Cardiac glycosides or cyanogenic glucosides may also be present. Called also gargaloo.
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of Prestonia, but splitting apart at maturity along suture); seeds mostly linear but broadly ovate in Parsonsia and Artia, testa glabrous, with micropylar (often rostrate) coma.