I'll have to go back with a camera, maybe this weekend. My memory is
more black and yellow, didn't notice a groove but I was a bit overwhelmed
by 40 acres of garden. I bought my first bamboo today, a Sasaella
masamuneana, either albostriata or aureostriata, they weren't sure and
it was the end of the season sale at a different nursery.
Brian, in Cedar



this is one of the most glorious of the dwarf bamboos, a personal
favourite, it grows wonderfully even in full sun without burning, and
the better you treat it, the more variegation it will give you. it is
probably aureostriata. This plant was introduced by an old friend, and
from a few tiny stems, became a multitude.
Am very interested in that bamboo you saw, if you tell me the name of
the nursery, we probably know the people and can just ask them!

hermine