The green QR Codes bring up identification and other information on the plants encountered at Nā Pōhaku o Hauwahine. These tags are displayed close to or on the trunk of the subject plant and provide both a name and some interesting facts, such as indigenous peoples' use of the plant. A photo may also be provided, typically showing the plant in flower.

At the very bottom is a standard botanical ID tag giving the plant common name(s), plant family, scientific (latin) name, and a line along the bottom giving status (left) and origin (right). Species are rated on a five-point scale of growth and survival at Nā Pōhaku o Hauwahine shown on the bottom line of the card (in a brown box); see the webpage LEGEND for details. Here is a card example:

Another form of identifying plants along the trail is presented on some orange QR Code pages. Look to the bottom of the page for a green table. This table lists those plants closely surrounding the tag location (an example is shown below for the Piko). Plants are listed in clockwise order in relation to the trails (or other obvious features). Provided on the tag for each species is common name, habit (plant type, such as tree or shrub), species name, and status. Only prominant specimens are listed and list may include non-natives (NoN).