Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Cupressus macnabiana (MacNab Cypress or Shasta Cypress) is a species of cypress in western North America.(A. Farjon. 2005)It is endemic to northern California. Cupressus macnabiana is one of the most widely distributed of all the native California cypresses, found growing in chaparral, oak woodlands, and coniferous woodlands habitats along the inner northern California Coast Ranges and the foothills of the northern Sierra Nevada.