Vallisneria gigantea 'Marmor'

The marble giant vallisneria is a selection of the giant vallisneria long known as Vallisneria gigantea; in the view of one dealer, plants supplied as Vallisneria spiralis 'Leopard' also belong to this cultivar.¹ In 2008 molecular studies assigned the vallisnerias traded as V. gigantea, including the “Marmor” form, to Vallisneria australis; one specialist author, however, doubts that all aquarium forms come from Australia.² The exact origin of the cultivar is not known; the species itself comes from south-eastern Australia.³

Its leaves, up to approx. 1 m long, are marked with short brown transverse dashes.¹ Good light brings out reddish-brown hues, whereas in poor light the reddish streaking is lost.¹² Like the other selections of the species, it is regarded as robust and straightforward; a nutrient-rich substrate is beneficial.¹

1. Vallisneria australis “Marmor” – Aquasabi (accessed 5 October 2026)
2. Kasselmann, C. (2019): Aquarienpflanzen. 4th edition (German). - Ulmer Verlag, Stuttgart: p. 572.
3. Vallisneria australis 'Marmor' – Flowgrow aquatic plant database (accessed 5 October 2026)