1. Indigenous species of historic, cultural or environmental significance to the community.

2. Commemorative planting by a group of citizens or the city in recognition of a significant community member or event.

1. Exceptional size/age as relates to generally accepted horticultural standards for the species.

2. Unusual or distinctive form, character, function or visual impact as related to the species and setting.

3. Association with a historically significant person, structure, or event.

4. Groves or stands of trees which collectively meet one or more of the criteria set forth in subsection B 1 through 3 above.