This taxon name is not current. The available references for this name are:
Heliotropium alcyonium Craven is more recently known as Euploca alcyonium (Craven) M.W.Frohl. & M.W.Chase
Reason See M.W. Frohlich et al. in Phytotaxa 434:15 (2020)
Heliotropium sp. U Kimberley Flora (D.H. Mckenzie 690316-4) is an informal synonym.
Reason See National Species List. https://id.biodiversity.org.au/instance/apni/781120 [accessed 05/04/2022]
See also: A longer explanation of these and other terms in our Plant Names Primer.
A taxon name that is no longer current will retain its ‘Threatened’, ‘Extinct’, or ‘Extinct in the Wild’ status until a new name has been published in a Biodiversity Conservation Order.