Pinus jeffreyi. JEFFREY PINE. Sierra Nevada

PINACEAE (Pine family)

Jeffrey pine is a noble tree of the Sierra above 5000 feet, reaching from Oregon to Baja California, and seen in typical form at Stanford Sierra Camp on Fallen Leaf Lake. There arethree needles to a bunch, each about 8 inches long. The cones are the same length more or less, and are nice to handle, not being particularly sticky or prickly. The bark is constructed in flakes shaped like pieces of a jigsaw puzzle which, unlike ponderosa pine, smell like vanilla when freshly broken off. Larger trees develop a distinctly yellowish tinge in the bark. The 202-foot state champion (1984) is in Stanislaus National Forest. It may be possible to distinguish Jeffrey pine from ponderosa pine in the wild, but cultivated specimens of unrecorded provenance can sometimes be hard to tell apart. See a young specimen at the Carnegie Institution on Panama Street just beyond the edge of the back lawn situated between Searsville Rd and Campus Drive.

Illus. right: seed cone from George B. Sudworth. Forest Trees of the Pacific Slope. USDA, 1907. Click for larger image.

A simple key to campus pines.

Other campus pines: Pinus brutia eldarica | Pinus bungeana | Pinus canariensis | Pinus contorta | Pinus coulteri | Pinus densiflora | Pinus edulis | Pinus halepensis | Pinus jeffreyi | Pinus maximartinezii | Pinus mugo | Pinus muricata | Pinus nigra | Pinus patula | Pinus pinea | Pinus ponderosa | Pinus radiata | Pinus roxburghii | Pinus sabiniana | Pinus sylvestris | Pinus thunbergiana | Pinus torreyana | Pinus wallichiana

Illustrations (links open new windows): CalPhotos


Name derivation, genus | species The Latin name | after John Jeffrey (1826-54), gardener at Edinburgh Botanic Garden, who discovered it

Related material: treatment in Jepson Manual | Gymnosperm Database

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