Name: Dracontium spruceanum (Schott) G.H.Zhu
Etymology:
The genus name Dracontium derives from the Greek drakōn (“dragon,” “snake”) and presumably refers to the plants’ striking appearance. The specific epithet spruceanum honors the British botanist and plant collector Richard Spruce (1817–1893), who collected the type material in Brazil.
Synonyms:
Echidnium spruceanum Schott (1858)
Cyrtosperma spruceanum (Schott) Engl. (1878)
Dracontium carderi Hook.f. (1880)
Dracontium costaricense Engl. (1911)
Dracontium trianae Engl. (1911)
Dracontium loretense K.Krause (1932)
Dracontium ornatum K.Krause (1940
First description:
The species was originally described in 1858 by Heinrich Wilhelm Schott as Echidnium spruceanum. In 1996, Guang Hua Zhu transferred it to the genus Dracontium, establishing the currently accepted name Dracontium spruceanum.
Origin / Distribution:
Dracontium spruceanum is distributed from Costa Rica to tropical South America. Its natural range includes Costa Rica, Panama, Colombia, Venezuela, Suriname, Ecuador, Peru, and northern Brazil, among other places.
Location / Habitat:
This species grows as a tuber-forming geophyte on the floor of humid tropical forests. It occurs in warm, high-rainfall regions and inhabits shady to partially shaded areas of the forest floor.
Description & Notes:
Dracontium spruceanum is an unusual tuber-forming aroid in the family Araceae. During the growing season, a single large, highly divided leaf usually develops from the underground tuber. The stout petiole may be conspicuously patterned and, in some Dracontium species, visually resembles a snake’s markings. Before or during leaf development, the characteristic inflorescence of aroids appears, consisting of a spathe and spadix.
The species requires a loose, humus-rich, well-draining substrate, warm temperatures, and high humidity. During the active growing phase, the substrate should be kept evenly and slightly moist. Once the leaf dies back, the plant enters a dormant phase, during which the tuber should be kept considerably drier to prevent rot.
