Helanthium bolivianum 'Vesuvius'

Corkscrew sword

Aquarium suitability: yes
Usage: Background, Midground, Nano tanks
Difficulty: easy
Growth: fast
Range and localities: 

No natural occurrence, selected in the nursery Oriental (Singapore); origin of the wild type (Helanthium bolivianum 'Angustifolius'): Tropical South America

Common names: 
  • Corkscrew sword

  • Echinodorus 'Vesuvius'
  • Echinodorus bolivianus 'Vesuvius'
  • Echinodorus sp. tortifolia

Habit, plant type:

  • rosette
Botanical name [?]: Helánthium boliviánum (Rusby) Lehtonen & Myllys

Major group (unranked): Seed plants: Flowering plants (Angiosperms)
Order: Alismatales
Family: Alismataceae
Genus: Helanthium


Helanthium bolivianum 'Vesuvius' is better-known under the name Echinodorus 'Vesuvius'. It is the first cultivar from the group of runner-forming "grasslike" sword plants. According to recent relatedness analyses these belong in a genus of their own, though, as does, of course, the cultivar 'Vesuvius': Helanthium.

H. bolivianum 'Vesuvius' was selected from mother plants of Helanthium bolivianum "Angustifolius" (= Echinodorus angustifolius) by the breeder Eu Kwee Hwang in the aquatic plant nursery Oriental Aquarium (Singapore).
During Interzoo 2006, the Dutch company Stoffels International BV presented the new cultivar.

To be continued...

References and further reading:
  1. (follows)
Light medium to high 
Temperature tolerance 10 to 30 °C
Optimum temperature 20 to 26 °C
Carbonate hardness 0 to 14 °dKH
pH value 5 to 7.5 
Carbon dioxide (CO2) 10 to 40 mg/l
Nitrate (NO3-) 10 to 50 mg/l
Phosphate (PO43-) 0.1 to 3 mg/l
Potassium (K+) 5 to 30 mg/l
Iron (Fe) 0.01 to 0.5 mg/l

Growth: fast

Propagation: Runners

Can grow emersed?: yes

Suited for outdoor cultivation / ponds: unknown

Winter hardiness: not hardy in Germany

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TODO Helanthium bolivianum 'Vesuvius' is also known as Corkscrew sword. TODO

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