Anthurium radicans × luxurians

Where it comes from

The hybrid has no range, but its parents do, and one of them is the most alarming fact on this site.

Anthurium radicans is Critically Endangered. A 2025 revision in Willdenowia, with a Kew Araceae specialist among its authors, assessed it so — and pinned its range while it was at it: an endemic of the Atlantic forest of eastern Bahia, in Brazil.¹² Kew records the same, “Brazil (E. Bahia)”.³ This corrects something widely repeated: the species is often given as Ecuadorean as well, and it is not.⁴ In fairness to the sources that say so, the species was described in 1854 from a single cultivated collection whose original material was lost, so its range was genuinely unsettled until recent fieldwork.

Anthurium luxurians Croat & R.N.Cirino is Colombian, described in 2005 in Aroideana.⁵⁶ It has no IUCN assessment; Colombia’s national catalogue lists it as not evaluated, and Kew’s Colombian portal carries only a modelled extinction-risk prediction, which is not an assessment.⁷ Its type has a nice detail attached: collected in the field, then flowered in cultivation at a Florida nursery before it was described.⁶

The cross itself has better provenance than most trade hybrids, though still only at the specialist tier: it is reported to have originated at Selby Botanical Gardens and to have been remade in 2004 by the grower who documents it — who also notes that it circulated in mass-market tissue culture mislabelled as A. radicans × dressleri.⁸ Nothing formal exists: no registration, no patent, and Kew’s search returns nothing.⁹¹⁰

A nomenclatural note, since “unregistered” reads as dubious and should not here: “radicans × luxurians” is a cross formula, not a cultivar epithet. It is not registrable as written. Nobody has failed to register it; nobody has named a selection from it.

Naming and description

The draw is the surface. Both parents are among the pebbled anthuriums — luxurians especially, whose blade is so deeply bullate it reads as quilted — and the hybrid inherits that. Size sits somewhere between two very different plants: A. radicans is one of the smallest creeping anthuriums, with blades around 14 cm, while A. luxurians carries blades of 25–65 by 15–50 cm on petioles to 89 cm.⁴⁷ No source states a mature size for the hybrid, so expect something between those, and treat any number you are given as a guess.

One thing sold about it that should not be repeated as fact: a single seller describes it as sterile. Nothing confirms or contradicts that.¹¹

Fun facts

• One parent is Critically Endangered, and this plant is the cheap one. The same grower who documents the cross ranks A. radicans as by far the easiest to grow and to source of the entire pebbled group.⁸ A species that is mass-propagated, inexpensive and common on windowsills is, in its own forest in Bahia, at the highest category of threat short of extinct in the wild.¹ Cultivation and conservation are separate systems, and this is the sharpest illustration of it here.
• Nobody has published why any aroid leaf is bullate. A search of the literature for the term returns taxonomic descriptions using it and nothing else — no functional account at all.¹² And the obvious literature to borrow is the wrong one: the lens-cell optics that explain velvet leaves are about the shape of individual epidermal cells, measured in micrometres,¹³¹⁴ while bullate is the architecture of the whole blade. The specialist literature keeps them apart and so should anyone else.⁸
• The pebbled look is not a family resemblance. The two parents sit in different sections of the genus, and the pebbled surface turns up across seven sections independently.⁸ So a shelf of quilted anthuriums is not a related group; it is a shape that Anthurium has arrived at again and again, which makes it a poor guide to what a plant is or what it wants.