I had no time to hiking up into the slope to view further, but I suppose a clearer full view picture from the Highway Median or opposite north bound lanes would have given a better overall perspective. Still if something has to invade, why not the beautiful Native of the S.D. County deserts ? And yet that is what got me thinking about another evidence of a climate shift which may be helping this along. There is another examples below.
The next plant subject is the California Sycamore back up in Anza California at my old property. I always had issues with late freezes and severe die back as a result. Cal Sycamores are very frost sensitive if already in full leaf foliage. Recovery is very lame for the rest of that particular year. There are of course exceptions of those higher elevation Sycamore trees which have resent their bud break thermostat for a later bloom period. For example there is a California Sycamore tree which is located in the creek bed next to the Butterfield Stage Stop at the Hwy Jct of 79 & San Felipe Road (S-2). The genetics here would have been a better choice than the coastal breed I brought up from down below near San Juan Capistrano, California. The south face of Cahuilla Mountain there is a small Arroyo with some very large Sycamore specimens just outside of the Lake Riverside Estates' northern fence boundary. Those may be good seed sources. Another area of potential seed source would be the Sycamore Groves back over in Terwilliger at Tule Canyon Creek. Although Anza does have several micro-climate anomalies, with Terwilliger being a sort of Banana Belt. Idyllwild also has such an area and folks there know it as Double View. Still whether or not a tree grown from seed from these other regions like Terwilliger to Table Mountain could only be proven by testing the theory out. Still, it would be fun.
Whatever the explanations for some of these observations for some of these noticeable changes or developments in plant movements and survival in formerly colder circumstance, there is no doubt that subtle changes are a preview of things to come. I'll have several more posts on California Sycamores later, so stay tuned!
Further Update on Sycamores:
These next couple of articles deal with the migration of plants up into higher elevations where it is cooler than former lower elevation ranges. Proof of further climate shifting. This first post deals with the research work of Jon Keeley and Dylan Schwilk on upward plant movement in the Santa Rosa Mountains above Palm Springs California:
This next post is about research of University of Arizona and research on upwards movement of plants like Alligator Juniper to higher elevation and lower elevation trees dying.