The white grape variety comes from Austria
, Synonyms are ice crumbler, lard, greens cracker
, Hrufel, Hrustec, Javorovters, Kanigl Grüner, Kleiner Kracher, Masnec, Muhavec, Ohainer Grün, Schmalztraube, Sivisa and Vervika. The parentage is unknown. It is a pure female grape
, It is in Hermann's "Ampelographic Dictionary" Goethe
(1837-1911) described as a wine grape. Stocks are not known; it may already be extinct.