⚠ Version 1 of The Plant List has been superseded.
This name record (from Tropicos) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Melandrium macrospermum in version 1.1 of The Plant List.
This name is a synonym of Silene uralensis subsp. porsildii .
The record derives from Tropicos which reports it as a synonym (record 6301673
) with original publication details: Rhodora 41(486): 225, pl. 552, f. 1-3 225 1939.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:155323-1
.