05/07/2026
Black Bamboo in Flower? Help Us Document This Rare Event
Flowering of Phyllostachys nigra - commonly known as Black Bamboo - has recently been observed in some places in Thimphu.
Bamboo flowering is an unusual and important biological event. At this stage, we do not know whether this is an isolated flowering event in a few plants, flowering among plants that may have originated from the same clone, or part of a wider gregarious flowering event occurring in other parts of Bhutan.
This is where your observation becomes very important.
If you have seen Black Bamboo flowering in your garden, institution, roadside planting, or any other location in Bhutan, please upload your observation to the Bhutan Biodiversity Portal with clear photos, location and date.
Your record can help:
✅ document where and when flowering is occurring
✅ understand whether the event is local or widespread
✅ support research on introduced ornamental bamboo in Bhutan
✅ create a permanent national biodiversity record
📸 Seen it flowering? Upload your observation today on the Bhutan Biodiversity Portal via this link https://biodiversity.bt/observation/create/single
Together, we can document this rare botanical event across Bhutan.
National Biodiversity Centre Bhutan
