J. grandis (Sierra Juniper) or J. occidentalis (Western Juniper).

For a long time, the large junipers of the west were known as Western Juniper, Juniperus occidentalis.
Then people started identifying consistent variations and the debate about subspecies, varieties, and separate species began.
If you accept the Jepson manual's section on Juniperus, you find J. grandis applied to the large junipers of the Sierra Nevada rather than a previously accepted taxon of J. occidentalis subsp. austrailis.
Generally, J. occidentalis is found in the Cascade range and J. grandis is found in the Sierra Nevada and in the eastern portion of a couple of the Transverse Ranges of southern California.
According to Adams, there is an area of hybridization in the Beckwourth, California area where the species meet.

Publicado el abril 26, 2018 05:40 TARDE por chauncey