Hippuris vulgaris in Nagano

Hello everyone!
I hope you all had a Merry Christmas and a happy New Year!
Today’s post will be on a stem plant that some friends and I went to take a look at in Nagano, Japan. I have not seen this plant in the hobby at all and the reason I think for that I will cover later on in this post. I hope you all enjoy this post!

The plant that we went to look at is Hippuris vulgaris. This plant is actually well-known in this area, so much so that there is a sign nearby a stream where it is plentiful. The sign basically states a few things such as that this plant only grows in colder areas/temperatures, where else in Japan as well as other places in the world that this plant can be found (Alaska, Siberia, Greenland). Lastly that this plant is very important and unique to the Nagano prefecture. As the sign nearby this stream stated, this plant only grows in colder areas and colder temperatures. This is the reason that it is not in the hobby, not many people have the money to spend on a cooling-device for their aquariums, it is just too troublesome.
Hippuris stream sign

We found that is plant is quite plentiful in this area, both immersed as well as emersed specimens. The best explanation that I can give for the look of this plant is that it has the structure of a very leafy Eustralis/Ammania, but with translucent green (like Bolbitis) leaves.
hippuris immersed
hippuris emerged

There were also other aquatic plants in the area that were in great abundance, such as Japanese Willow Moss, Fontinalis antipyretica. The stream pictured below was full of it, the whole bottom of the stream was matted with this beautiful moss, it was really quite a sight, and the moss was so clean and healthy, just amazing!
fontinalis stream
fontinalis antipyretica

Also lots of emerged Murdannia spirata
Murdannia spirata
Including beautiful patches of immersed Elatine triandra, this stuff was everywhere!
Elatine triandra

I hope you enjoyed this post on a rarely-seen stem plant from the colder areas of our world!
If you like what you are seeing please feel free to leave a comment!
Have a good one guys!