Rioclaroense × is a wild hybrid, suspected to involve a species from section Xialophyllium. Wild Anthurium hybrids are uncommon, and cross-sectional ones are considered particularly rare. The plant was discovered by Jay Vannini.

a hybrid from Doc Block between the famous Black Widow and Red Velvet Cake. My plant shows very lovely mostly lateral and minimal venation and has beautiful peachy pink emergents.