Plant ID

[pseud]

Can anyone help me with IDing the plants in this pic:

http/planta.aquariana.cz/foto/Amano_02.jpg

I'm pretty sure the foreground is riccia fluitians and glossotigima, right?

What about the backgroud?

Thanks.

 

[pseud]

Anybody?

 

[George Farmer]

Hard to say for definite but I'd guess at mostly Ludwigia species (thin red leaf - arcuata, roundish leaf - repens or natans). The central plant looks like Heteranthera zosterifolia with Didiplis diandra to the left.

 

[pseud]

Thanks gf. I really do like that central plant.

 

[George Farmer]

Heteranthera zosterifolia is a wonderful plant, although I have never grown it personally. Copied from the Tropica site.

Family - Pontederiaceae

Continent - South America

Region - South America

Height 30-50 cm

Width 10-15 cm

Light requirements - high-very high

Temperature - 18-30 °C

Hardness tolerance - very soft-hard

pH tolerance - 5-8

Growth - fast

Demands - easy

Heteranthera zosterifolia is an extremely beautiful plant which forms a lot of side shoots and thus quickly forms a bushy plant group. In strong light growth is intensive, and the plant must be pruned before it becomes so compact that no light reaches the lower leaves. Water roots often form on the stem. In open aquariums it forms small blue flowers if some shoots are allowed to spread on the surface.

 

[Lateral Line]

I've always found Heteranthera zosterifolia to grow very spindly and not bushy like that in the picture. Even under good light, the leaves are a long way apart on the stems. I think that may be one of the narrowleafed cultivars of H. polysperma, "Ceylon" maybe or "DaCosta".