⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-50106186, with some changes.
This name is a synonym of Silvianthus bracteatus subsp. tonkinensis .
The record derives from Tropicos which reports it as a synonym (record 50106186
) with original publication details: Kew Bull. 19(3): 507 507 1965.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:150186-1
.