Name: Bulbophyllum Carsul (W. Rysy 2007)
 Parentage: Bulbophyllum sulawesii (syn. B. klabatense subsp. sulawesii) × Bulbophyllum carunculatum (syn. B. amplebracteatum subsp. carunculatum).
Etymology: The name “Carsul” is a portmanteau formed from the names of the two parent species: Carunculatum + Sulawesii.
First description / registration: The hybrid was registered by W. Rysy with the Royal Horticultural Society (RHS) in 2007.
Origin / distribution: Garden hybrid; both parent species are native to the Indonesian island of Sulawesi.
Location / habitat: As both parents are native to the warm, humid forests of Sulawesi at elevations of approx. 800 to 1,000 m, the hybrid requires warm growing conditions. It prefers locations with high humidity (over 70%) and very good air circulation.
Description & notes: Bulbophyllum Carsul combines the best traits of section Lepidorhiza. The plant is medium-sized, with robust, egg-shaped pseudobulbs and single, leathery leaves. The inflorescences often bloom sequentially, meaning the flowers open one after another over an extended period. The flowers are usually large and display a dominant yellow to golden ground color (inherited from B. carunculatum), often combined with reddish or brown speckles or a dark lip. A distinctive feature is the movable, fleshy lip, which is typical of the genus.

In cultivation, B. Carsul is often more vigorous than its pure wild-type parent species. It thrives in shallow pots, baskets, or mounted. The growing medium (e.g., a mix of fine bark and sphagnum) should be kept moist at all times; dry periods lasting more than a few days can damage new growths. As the plant has no pronounced need for a winter rest, it should be grown warm and evenly moist year-round.