Ancient Trees in San Francisco
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Uncle John's Tree
Monterey Cypress (Cupressus macrocarpa). roughly 145 years. Free, always open. Stands on the public lawn immediately outside McLaren Lodge, the SF Recreation and Parks headquarters building at the east end of Golden Gate Park.

The Landmark Palms of Dolores Street
Canary Island Date Palm (Phoenix canariensis). . Free, always visible from the sidewalk on either side of Dolores Street; the trees stand in the raised median that runs down the centre of the street, so they are seen rather than walked among.

The Flowering Ash of Bernal Heights Library
Flowering Ash (Fraxinus ornus). . Free, always visible; the pair stands right at the main entrance of the Bernal Heights Branch Library, a public building open during library hours, on the public sidewalk edge regardless.

The Cork Oak of 20th Street
Cork Oak (Quercus suber). . Free, always open. Stands at the top of a public hillside stairway garden in the street's own public right-of-way, tended by the neighbourhood association with city (SFDPW) support; not on private land at any point.

The Moreton Bay Fig of St. Luke's
Moreton Bay Fig (Ficus macrophylla). . Free, always visible from the public sidewalk on Valencia Street; stands on hospital grounds fronting the street rather than inside a fenced garden.

The Sweet Bay at the Customs House
Bay Laurel (Laurus nobilis). . Free, always visible. Stands on the public sidewalk at the corner of the United States Customs House, a federal government building; the tree itself is on the public right-of-way.