(A.Berger) Britton & Rose
Clambering plants with flat to angled stems, producing aerial roots. Areoles may be with or without spines. Flowers are large and nocturnal, pollinated by moths or rarely bats. The receptacle bears small bracts, hairs and usually spines. Fruits bear numerous spines. Flowers are generally produced in abundance with mature plants and are typically white and are very fragrant and only last a single night in most species.
The generic name is derived from Σελήνη (Selene), the Greek moon goddess, and cereus, meaning "candle" in Latin, referring to the nocturnal flowers. The term nightblooming cereus is sometimes used here, but this is also used for many night blooming cacti, including Epiphyllum, Hylocereus and Peniocereus.
|Mexico. Stems like those of Epiphyllum anguliger but more vining and with short spines. Flowers ca. 12 cm long, 10–15 cm wide, the outer inner tepals purplish, the inner cream.|
|Selenicereus atropilosus||Mexico. Flowers 12 cm long, receptacle with black hairs. The species is close to some species in the genus Weberocereus|
|Selenicereus chrysocardium||Mexico. Stems deeply lobed, ca. 28 cm wide. Flowers 32–38 cm long, 23–30 cm wide, base of receptacle very spiny. The species is close to the genus Epiphyllum.|
(L.) Britton & Rose
|Jamaica, Cuba; Guatemala, Honduras, Nicaragua. Stems many-ribbed. Flowers 18 cm long, receptacle densely woolly. Three subspecies are recognized:
|The following species are very closely related to each other and possibly better treated as synonymous taxa or subspecies.|
|*Selenicereus boeckmannii||Cuba, Haiti, Dominican Republic, Mexico. Flowers 24–39 cm long. Close to S. pteranthus.|
|*Selenicereus brevispinus||Cuba. Spines less and 1 mm long. Flowers 25 cm long. A shortspined S. grandiflorus.|
(Weing.) Britton & Rose
|Mexico. Stems thick, usually with 5-6 ribs, spines to 1,5 cm long. Flowers 22–25 cm long. A long spined S. pteranthus or few ribbed S. grandiflorus.|
|*Selenicereus hallensis||Colombia? Only known in cultivation and possibly a hybrid with S. macdonaldiae and some other "species".|
|*Selenicereus urbanianus||Cuba, Haiti, Dominican Republic. Stems 4-5-ribbed, flowers 20–30 cm long.|
(Scheidw.) Britton & Rose
|Mexico. Stems 3-4-ribbed, with knobby projections, nearly spineless. Flowers 20–25 cm long, receptacle with black hairs.|
|Selenicereus inermis||Venezuela, Colombia. Stems 2-5-ribbed, almost spineless. Flower 15 cm long, spiny, hairless. The following species are probably best treated as synonymous or subspecies of S. inermis:|
|*Selenicereus rubineus||Mexico. Stems 4-5-ribbed. Flowers 18 cm. wide, 18–19 cm long, inner and outer inner tepals flushed ruby-red near base.|
|*Selenicereus wercklei||Costa Rica. Stem with 6-12 low ribs. Flower 15–16 cm long, spiny, hairless.|
|Selenicereus murrillii||Mexico. Stems only 8 mm thick, nearly spineless. Flowers 15 cm long, spiny, hairless. Closely related to S. spinulous and S. inermis (sensu lat.).|
(Link & Otto) Britton & Rose
|Two forms are recognized.
(DC.) Britton & Rose
|Texas, Mexico. Stems short-spined. Flowers 8–14 cm long, receptacle spiny, hairless.|
|Selenicereus vagans||Mexico. Flower 15 cm long, receptacle spiny, hairless.|
|*Selenicereus nelsonii||Mexico. Flowers 20 cm long, receptacle hairless, spiny. Probably conspecific with S. vagans.|
|Selenicereus validus||Michoacán, huge nocturnal flowers with bright red fruits. (Mesa Gardens 1244.5936)|
Formerly placed here
- Hylocereus megalanthus (K.Schum. ex Vaupel) Ralf Bauer (as S. megalanthus (K.Schum. ex Vaupel) Moran)
- Hylocereus setaceus (Salm-Dyck ex DC.) Ralf Bauer (as S. setaceus (Salm-Dyck ex DC.) Werderm.)
|Wikimedia Commons has media related to Selenicereus.|
|Wikispecies has information related to Selenicereus|
- "Genus: Selenicereus (A. Berger) Britton & Rose". Germplasm Resources Information Network. United States Department of Agriculture. 2004-02-13. Retrieved 2011-04-14.
- "GRIN Species Records of Selenicereus". Germplasm Resources Information Network. United States Department of Agriculture. Retrieved 2011-04-14.