Cleistocactus

Cleistocactus is a genus of columnar cacti native to mountainous areas - to 3,000 m (9,843 ft) - of Peru, Uruguay, Bolivia and Argentina. The name comes from the Greek kleistos meaning closed because the flowers hardly open. The stems are tall and mostly slender and often many-branched with numerous ribs with closely set areoles and spines. The flowers are tubular and the tips hardly open with only the style and stamens usually protruding.

CLEISTOCACTUS PARAPETIENSIS CRESTATO

CLEISTOCACTUS STRAUSIL

ADROMISCHUS
AEONIUM
AGAVE
ALOE
ANACAMPSEROS
ASTROPHYTUM
CEREUS
CHAMAECEREUS
CHAMAELOBIVIA
COPIAPOA
COTYLEDON
CRASSULA
CYANOTIS
DELOSPERMA
DIOSCOREA
ECHEVERIA
ECHINOCACTUS
ECHINOCEREUS
ECHINOFOSSULOCACTUS
ECHINOPSIS
ESPOSTOA
EUPHORBIA
FAUCARIA
FENESTRARIA
FEROCACTUS
FOCKEA
FRITHIA
GASTERIA
GRAPTOPETALUM
GRAPTOVERIA
GYMNOCALYCIUM
HAWORTHIA
HUERNIA
KALANCHOE
LITHOPS
LOBIVIA
MAMMILLARIA
MARGINATOCEREUS
MATUCANA
MELOCACTUS
MYRTILLOCACTUS
NEOBUXBAUMIA
NOTOCACTUS
OPUNTIA
OROSTACHYS
PACHYCEREUS
PACHYPHYTUM
PACHYPODIUM
PACHYVERIA
PARODIA
PEPEROMIA
PILOSOCEREUS
PLEPERONIA
POLASKIA
PORTULACARIA
REBUTIA
RHIPSALIS
ROSULARIA
SEDEVERIA
SEDUM
SEMPERVIVUM
SENECIO
SINOCRASSULA
STAPELIA
TITANOPSIS
TRICHOCEREUS
TRICHODIADEMA
VATRICANIA

Thanks for Dbpedia for part of the informations