Kurt Stüber [1] · CC BY-SA 3.0
About
The genus *Nematanthus* is notable for its unique, often pouch-shaped flowers that resemble goldfish, giving rise to common names like 'goldfish plant' or 'guppy plant.' These plants are typically epiphytic, featuring small, succulent, and hard-surfaced leaves.
Field notes
Morphology
The species are perennials or subshrubs with small, succulent, and hard-surfaced leaves, which are often reddish underneath. Flowers have fused petals and vary widely in shape; some possess a distinct 'pouch' on the lower surface, while others are resupinate (twisted 180°), appearing funnel-shaped or bell-shaped. Flowers can be borne on long pedicels, hanging down, or on short pedicels close to the stem.
Distribution & habitat
All species are endemic to Brazil.
Ecology
Hummingbirds are known to feed from the nectar-filled flowers. The species are typically found growing epiphytically or in humus-filled pockets on rocks.
Cultivation notes
They thrive at temperatures between 18 and 25 °C, preferring high humidity. They require bright indirect light and well-drained, moist soil. The plant enjoys being pot-bound and can bloom year-round with regular pruning. Propagation is easily done from cuttings.
History & etymology
The genus *Nematanthus* was first described by Heinrich Adolph Schrader in 1821. The name is derived from Ancient Greek, combining *nema* (thread) and *anthos* (flower), referencing the long pedicels of the type species.
Habitat
- Altitude
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- Altitude Class
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Cultivation
- Difficulty
- intermediate
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