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Nechamandra alternifolia subsp. angustifolia

°C
°dKH
Aquarium suitability: yes
Usage: Background, Midground
Difficulty: medium
Growth: very fast
Range and localities: 

Myanmar, Thailand, China1


Availability [?]: 
  • occasionally available from other aquarists

Misapplied names: 
  • Blyxa vietii
  • Blyxa cf. vietii
  • Blyxa sp. ''Vietnam''

Habit, plant type:

  • stem
Botanical name [?]: Nechamándra alternifólia (Roxburgh ex Wight) Thwaites subsp. angustifólia Kasselmann & G. Petersen

Major group (unranked): Seed plants: Flowering plants (Angiosperms)
Order: Alismatales
Family: Hydrocharitaceae
Genus: Nechamandra

Description: 

This new plant has been imported from Asia under the name Blyxa vietii since around 2005. However, it was not clear whether it really belongs to the species B. vietii, which is only known from a single location in Vietnam, therefore it was named Blyxa cf. vietii. Now it's identified by Kasselmann & Petersen (2014)1 as Nechamandra alternifolia subsp. angustifolia.

This newly described subspecies of Nechamandra alternifolia has lieneal leaves of 3 to 5 cm length whose margin is finely serrate. They look similar to those of Blyxa japonica but are even narrower with a width of 0.7 to 2 mm.

This plant forms long upright stems and runners on its stem base, comparable to Vallisneria runners.

- To be continued -

References and further reading:
  1. Kasselmann, C. & Petersen, G. (2014): Nechamandra alternifolia (Roxburgh ex Wight) Thwaites subsp. angustifolia Kasselmann & G. Petersen, subsp. nov. (Hydrocharitaceae). - Aqua Planta 3/2014: 84-92.
References (range and localities):
  1. Kasselmann, C. & Petersen, G. (2014): Nechamandra alternifolia (Roxburgh ex Wight) Thwaites subsp. angustifolia Kasselmann & G. Petersen, subsp. nov. (Hydrocharitaceae). - Aqua Planta 3/2014: 84-92.
Light medium to high 
Temperature tolerance 18 to 30 °C
Carbonate hardness 0 to 14 °dKH
pH value 5 to 7 
Carbon dioxide (CO2) 20 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: very fast

Propagation: Runners, Cuttings

Can grow emersed?: no

Suited for outdoor cultivation / ponds: unknown

Winter hardiness: not hardy in Germany

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