An albino form of <i><a href="//commons.wikimedia.org/wiki/Dipodium_variegatum" title="Dipodium variegatum">Dipodium variegatum</a></i>. I found this today growing next to the traditionally purple red varieties.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/74747209@N05">Moonlight0551</a> from Australia
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/dlochlin/8313219339/">Pure White Hyacinth Orchid - Dipodium punctatum</a>