Long-leaved water ear
| Long-leaved water ear | ||||||||||||
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| Aponogeton elongatus | ||||||||||||
| F. Garbage. ex Benth. |
The Langblättrige Wasserähre ( Aponogeton elongatus ) is an amphibious living plant from the family of the water ear plants .
description
This herbaceous perennial plant forms a tuber. The leaves are ribbon-shaped and grow out of a rosette. They are very delicate and have a wavy edge. The leaf surface is light green, yellowish green to reddish brown. The number of chromosomes is 2n = 40.
Occurrence
The plant has its natural range in Australia , from northern Australia to northeastern New South Wales, where it occurs in stagnant and flowing waters in shady and sunny places.
Systematics
Two subspecies can be distinguished:
- Aponogeton elongatus subsp. elongatus : It occurs from northern Australia to northeastern New South Wales .
- Aponogeton elongatus subsp. fluitans Hellq. & SWLJacobs : It occurs in Queensland .
Use in the aquarium hobby
Unlike a whole range of water spikes , this plant is only very rarely offered in specialist shops for planting aquariums . This type of water ear belongs to the demanding aquarium plants , among other things it needs a rest period in which the tuber can regenerate. The light requirement of the plant is very high. For her well-being she needs medium-hard water with pH values between 7 and 8.
literature
- Christel Kasselmann : Designing plant aquariums , Franckh-Kosmos Verlag, Stuttgart 2001, ISBN 3-440-08518-X
- Christel Kasselmann: aquarium plants. Ulmer Verlag, Stuttgart 1999, ISBN 3-8001-7454-5 , p. 125.
Individual evidence
- ↑ Aponogeton elongatus at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
- ↑ a b c d Rafaël Govaerts (Ed.): Aponogeton - World Checklist of Selected Plant Families of the Royal Botanic Gardens, Kew. Last accessed on June 21, 2018.