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- A list of cacti organised by genus, with their most important characteristics.
-
- TYPE: Column Cacti
-
- GENUS CHARACTERISTICS
- Browningia Blue "frosting"
- hertingiana
-
- Cephalocereus Grey hairs
-
- Cereus Hairless Blossom
-
- Cleistocactus Flower without cilia
-
- Echinocereus Green stigmas
-
- Espostoa White or grey-haired
- covering
-
- Eulychina Wooley areoles
-
- Haageocereus (Often) coloured spines
-
- Hildewintera Short inner blossom
- leaves
-
- Oreocereus White or grey-haired
- covering
-
- Pilosocereus Long and woolly
- areoles
-
- Setiechinopis Star-like flowers with
- very short petals
-
- Stetsonia V-shaped ridge
- crossing the areoles
-
- Trichocereus Circle of stigmas in the
- centre
-
-
- TYPE: Rattail Cacti
-
- GENUS CHARACTERISTICS
- Aporocactus Red flowers, open
- during the day
-
- Selenicereus Flowers open at night,
- 10" (25cm) tall
-
-
- TYPE: Barrel Cacti
-
- GENUS CHARACTERISTICS
- Astrophtum Woolly surface
-
- Echinocactus Very large barrel cacti
-
- Echinofossulo- Lamella-like ribs
- cactus
-
- Echinopsis Centre has a wreath of
- stamens. Relatively
- long tubelike flowers
-
- Ferocactus (Often) flattened
- hooked spines or curly
- spines
-
- Gymnocalcium Areoles with horizontal
- ridges; flowers with
- large bald scales on the
- outside
-
- Lobivia Centre with a stigma
- circle and short
- tubelike flowers
-
- Neoporteria Many different shapes
-
- Notocactus Often red stigmas
-
- Parodia Flower with heavy
- spine growth on the
- outside; (often) hooked
- spines
-
- Rebutia Flowers develop
- sideways near the base
-
- Sulcorebutia Combine spines
-
- Thelocactus Flowers are located at
- the end of a short
- furrow
-
- Turbinicarpus Paperlike or feathery
- spines
-
-
- TYPE: True tubercle cacti (tubercles and flowers develop in the tubercles)
-
- GENUS CHARACTERISTICS
- Coryphantha Flowering tubercles,
- grooved
-
- Mammillaira Tubercles not grooved
-
-
- TYPE: Leaf cacti
-
- GENUS CHARACTERISTICS
- Phyllocacti Flowers more than 3/4"
- (2cm) long
-
- Rhipsalis Flowers up to 3/4"
- (2cm) long
-
-
- TYPE: Cacti with jointed branches
-
- GENUS CHARACTERISTICS
- Rhipsalidopsis Flowers radially
- symmetrical
-
- Rhipsalis Flowers up to 3/8"
- (1cm) in diameter
-
- Schlumbergera Flowers double-sidedly
- symmetrical
-
-
- TYPE: Opuntiae
-
- GENUS CHARACTERISTICS
- Opuntia (Often) flat, leaflike
- pads