Acorn matures in one season (at end of new stems)
Acorn matures in two seasons (on older stems)
Q. kelloggii, Q. palmeri
|Oak relationship chart|
One of the most common trees that you will see driving the roads of California in rural areas are oaks. Many of these trees are hundreds of years old. They are the dominant plants in many habitats. The wildlife of California depend heavily upon oaks. If we break down the state into sections where different types of oaks live, you can see the species of oak that you may commonly encounter in your area.
It seems that every few years a budding botanist wanders out
of his or her ivory tower and discovers that there are bushy oaks
outside. Now these oaks do not key in the floras easily (keying is
wandering through a flora's (a book) selection process that is supposed
to be based primarily on reproductive parts of the plant). So, Mister
or Ms. hot shot botanist writes a paper describing his or her
“new oak. Every time a 'new' oak is described it leads to
more confusion and more 'new' oaks. These oaks below should probably
all be considered various forms of Scrub Oak
Quercus berberidifolia- new name for Q. dumosa, given to new plants that are supposed to only occur in San Diego but are elsewhere. The landscape trade only recognizes old Q. dumosa, so in the name of 'restoration' the gene pool is being replanted with oaks from all over the state.
Q. john tuckeri (old name: Quercus turbinella ssp. californica) is like a Q. dumosa but with fuzz on the top of the leaf. But, then sometimes it's like an evergreen Blue Oak (Quercus douglasii).
You can't even say all scrub oaks are scrubby. Some can become small trees with 12 diameter trunks and rarely a size of 30 feet. While others (many times on the same slope) reach a maximum height of six feet.
The floras make it sound easy to figure out the Quercus x alvordiana, Q. dumosa, Q. john tuckeri (or Q. turbinella), and all the other 'new' forms of Quercus dumosa. Isn't so. They morph even into a Blue Oak (Quercus douglasii). Some of the deciduous blue oaks (Quercus douglasii) look exactly like a Tucker's Oak (Quercus john tuckeri), some of the Quercus dumosa look to be hybrids with Quercus agrifolia (Coast Live Oak), some hybrids of Q. dumosa and Q. lobata (Valley Oak) exist, some of the blue oaks do not go deciduous and key to Q. john tuckeri but appear to be blue oaks in all other aspects.
Leather Oak (Quercus durata) is one of the many scrub oaks. The rolled leaf edges on a small tree, almost shrub, is the key. Use as a dwarf oak or as a 'tree' in a miniature forest.
Oak (Quercus sadleriana). This oak grows in lush northern
California shady or wet forests.
The only way to succeed is to fail, repeadedly, repeatabley, repeateditly, repetetely, ah, #@#!
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