Myristica argentea shows 13–18 pairs of secondary nerves. The inflorescences are 4.5 cm-long racemes. The fruits are globose and 6mm long. Myristica argentea Myristica argentea is a tree that grows in the primary rain forests of New Guinea. It is occasionally a source of nutmeg, and it (or its seed) is called Macassar nutmeg, Papua(n) nutmeg, long nutmeg or silver nutmeg. "M. malabarica" is used to adulterate true nutmeg, which comes from "Myristica fragrans". The leaves are simple and spiral. The petiole is stout, cracked transversally, channeled, and 2.8 cm long. The blade is glossy, 20 cm × 6.4 cm – 13.5
Myristica swamp recorded. Twelve of these plants species have been redlisted and about 28 species of them are endemic to Western Ghats. Out of the 19 sample plots, Gymnacranthera farquhariana was dominant in 10 plots. Myristica fatua was the dominant tree in 6 swamps. In the remaining plots, Vateria indica was the dominant tree. Holigarna arnottiana and Lophopetalum wightianum dominated in another two plots. Nair and colleagues in southern Kerala in 2007 focussed on fauna also. Faunal biodiversity of the Myristica swamps consisted of Platyhelminthes- (Bipalium-2, tapeworm-1) 3 species, Nemathelminthes – 1 species, Annelida (Oligochaeta -2and Hirudinea-2) 4 species, Mollusca- 10 species,