Eriocaulon buergerianum Identity & Plant Part
The botanical entity is Eriocaulon buergerianum Körn., pipewort, a small herb of the Eriocaulaceae that grows in rice fields and wet ground. It forms a rosette of narrow leaves with slender stalks, each topped by a small, white, button-like flower head. The part used is the flower head. Leaves, stalks and roots are not part of this ingredient.
The identity point buyers meet most often is substitution. Several other Eriocaulon species are sold under the trade name gu jing cao, and they are different plants with their own chemistry. The botanical name settles which one is meant. The flower head carries flavonoid glycosides, phenolic acids and small amounts of sterols, named only as constituent families.
Eriocaulon buergerianum extract is made from the flower head alone, so the extract excludes the leaf rosette that makes up most of the plant by weight.












