By Fred Roberts, CNPS-SD Rare Plant Botanist
As a member of the San Diego Chapter of the California Native Plant Society, you would be totally forgiven if you never realized that the chapter actually includes Imperial County. This is fairly obvious on state maps showing chapter boundaries. However, the inclusion of Imperial County in our chapter is otherwise relatively obscure. Imperial County doesn’t often come up at meetings. You will generally not find Imperial County mentioned in our chapter newsletter. On the website, I noted Imperial County mentioned on the Mission Statement page but nowhere else. You seldom hear people refer to our chapter as the “San Diego and Imperial Counties chapter of CNPS”. There is some effort to improve on this in 2019.
This isn’t really a surprise. There are no major institutions like the San Diego Natural History Museum in Imperial County. SDSU has only a satellite campus near Calexico. I am not even sure how many chapter members actually have addresses there. Most of us see it from the I-8 and then it might seem to be just hot, barren desert and hundreds of thousands of acres of agriculture. And, of course, there is the Salton Sea and Colorado River.
That desert can be a very interesting place, at least in the cooler parts of the year and whenever rain falls (which it sometimes doesn’t). There are the rugged and poorly explored Chocolate Mountains, much of which is not open to the public, dominating the east along with the Palo Verde and Cargo Muchacho Mountains. The Algodones Dunes, the largest dune system in North America, runs a southeast diagonal from the Salton Sea down into Sonora. West of the Imperial Valley is dominated by the Western Mesa and Yuha Desert, which gives way to the eastern fringes of the Peninsular Ranges at the Fish Creek, Coyote, and Jacumba Mountains. The county borders Mexico, leaving the possibility of Baja California plants, not yet known in the United States, being found here.
by Erik Jonsson, writing in August 15, 1989
I remember the first time I came in contact with CNPS. It was at Silverwood. (I was in the Audubon Society that time and went to Silverwood a lot to show Frank Gander plants that I had pressed and did not know what they were. I must have been a terrible nuisance for him.) Anyhow, there was this bunch of people all interested in plants like me and looking like the kind of nice people I like, so I decided that I had better join and take part in the fun.
The field trips interested me most. AII those plants and shrubs that I had been trying in vain to figure out what they were and here I got the Latin names all served like on a silver platter! Somehow I became Field Trip Chairman. I don’t remember now how it happened. I guess they must have been desperate to find a victim and I was too stupid to say NO as usual.
We had lots of memorable field trips at that time. One of efforts my first was to the top of Fortuna Mountain just after a fire. Quite a hike. Lots of flowers. That is when somebody, I think it was Fred Sproul, found a whole bunch of Chocolate Lilies, Fritillaria biflora. Quite a treat!
Compiled by Mike Gonzales, Founding Member, San Diego Pollinator Alliance and Former Chairperson, CNPS-San Diego Garden Committee
Can restoring our yards into native urban gardens, albeit very difficult to do given the nature of urban yards, help San Diego’s endemic plants survive and thrive?
Believe me, I understand the part about not being easy! I’ve been stumbling around my front and back yards for 20+ years sluggishly transforming iceplant-covered slopes into some semblance of a native urban garden, or at least semi-native at this point. I thought Wayne Tyson was joking when he posted on the CNPS-SD listserv that, “it's as easy as duplicating the conditions [or functionally mimicking them] under which indigenous ecosystems function.” Well, maybe it was just tongue-in-cheek as he followed up with, “That can be difficult, but it's not impossible, especially the mimicking part [due to] the site conditions that one has to begin with, but it can be done.”
This post epitomizes the macrocosm of my ongoing quest-to create something that hopefully might be considered a decent foundation for, as Wayne puts it, “preserving indigenous germplasm while not sacrificing beauty or utility, and further minimizing the use of imported water and nutrients from other places.” I know, this certainly sounds like a lofty goal, but I’ve been having fun at it – thanks to all the wonderful information streaming across the list-serve from very knowledgeable people whose advice I deeply respect.
Ok, so if you don’t mind too much I’d like to take a slight detour here, as I feel I should at least try to understand what Wayne means when he refers to the term ‘germplasm’. I’m guessing it may have something to do with what both Wayne and Greg Rubin refer to as “the mycorrhizal net (i.e., the natural soil-crust community of algae, mosses, and other cryptobiotic/cryptogamic soil-crust plant communities which are fireproof, erosion-protectors, and infiltration-facilitators).Symbiotic benefits of a mycorrhizal net include disease resistance, pest resistance, and increased availability of moisture. Absence of a mycorrhizal net (and many other microbial constituents of the indigenous microbiome) is a contributor to weed growth, as most weeds are not obligately mycorrhizal; in fact, their presence may inhibit their formation.”
By Lee Gordon, CNPS Garden Committee
Some native seeds need long exposure to the sun in order to germinate. This report describes the role sun plays in the germination of seeds from three species. Two are borages: Phacelia parryiand Cryptantha intermedia. The third is Cneoridium dumosum, a citrus. It goes into some detail about the mechanisms that affect germination of these seeds. It then puts all this into the context of Deno’s theories of germination inhibition.
The final section shows that pretreatment with Gibberelic acid, a plant hormone, enables the borage seeds to germinate as well as pea seeds we buy from a store.