Native Power! Poppies and Red Maids (Hiking Edgewood)

Enjoy the lovely details by clicking on the illustration above

Poppies, shout it.

 Red Maids love serpentine soil! 

We're the one percent!

We're so lucky to be able to enjoy an historic wildflower bloom at Edgewood, where rate serpentine soil  does it's best to keep invasive non-native plants at bay. Only one percent of California plays host to the rock type that produces this special dirt. 

Let's hear it for the natives!

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Web Resources

Edgewood Rocks: Geology and Soils

http://postcardfromcalifornia.blogspot.com/2014/03/edgewood-rocks-geology.html

Edgewood Nature Preserve http://www.friendsofedgewood.org

Edgewood Rocks! (Geology)

Geology is key to the diversity of habitats and the success of Edgewood as a nature preserve. Because of the specialized geologic makeup of this 467 acre site, rarely seen native California wildflowers and other plants have maintained a toehold.

Because of Edgewood geology, animals dependent on plants that grow in this specialized area find a home.

Because of Edgewood geology's contributions to rare and endangered plant and animal communities, local citizens preserved this area as a natural space for future use by plants and all animals (including humans)


Key Components of Edgewood Geology

1. Tectonic Plate* Boundary
   
   • The North American Plate
   Edgewood lies along the western edge of this formidable slab of rock, that floats over the Earth's mantle in much of North America.
   • The Pacific Plate
   This plate is the largest of the tectonic plates. Though it's not beneath Edgewood, it does provide a foundation for the Santa Cruz Mountains, which can be viewed from the western side of the park.
   • The San Andreas Fault
   This fault marks the border between the North American and Pacific plates. Evidence of this junction can be seen in the valley covered by the Crystal Springs Reservoir, beyond the 280 freeway on the western side of Edgewood preserve. Many earthquakes in the area are due to movement of these two great plates along this boundary.
2. Rock Types
All the rocks at Edgewood started out on the ocean-floor. They arrived in the preserve via subduction**, the movement of one tectonic plate beneath another, and were later recycled as continental crust. Much of the rock within the park is part of the Franciscan Complex.
1. Serpentinite/Serpentine
A particularly significant rock in the Franciscan Complex when it comes to the success of Edgewood meadow and chaparral plants, and the survival of the Bay Area Checkerspot Butterfly. Serpentine rock, and the soils and plants it contributes to, are found on the Clarkia and Serpentine Loop Trails. Only 1% of CA rock is serpentine. It breaks down into soils that produce masses of flowers, and other plants adapted to it's unique composition.

2. Other Rocks in the Franciscan Complex
These rocks include greywacke, melange, and greenstone. They contribute to soils, and therefore plant and animal life, in the central ridge (Ridgeview Trails) area and upper oak woodlands of the popular Sylvan Trail.

3. Whiskey Hill Formation
This sandstone occurs in the woodland area of Old Stage picnic grounds. It extends into areas beyond the preserve, notably in Pulgas Ridge Open Space (Dogs not allowed at Edgewood are permitted at Pulgas Ridge!). Handley Rock , a popular local rock-climbing site and an intriguing view from Edgewood, is composed of Whiskey Hill 

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Web Resources

*What is a tectonic plate?
**Subduction
Geologic Timeline of Western North America
The North American (Tectonic) Plate The Pacific (Tectonic) Plate
Friends Of Edgewood: This site is an excellent source for everything from docent hike schedules to Edgewood wildflower search (Use the Photos tab in the upper right hand corner, to figure out what kind of flower you saw).
Edgewood Quick Facts

Hiking Edgewood: A Mule Deer Strolls Past

Click on the illustration above to enjoy more details

Though a common sight,

My heart stands still, when mule deer

Stroll across my path.

~ ~ ~

Web Resources

Edgewood: http://www.friendsofedgewood.org

Black Tail, Mule Deer http://en.wikipedia.org/wiki/Black-tailed_deer 

Hiking Edgewood:Pirate's Cave Mystery - Handley Rock

Trailside, do I see

Pirate's cave across the way?

Handley Rock beckons!

You can't get there from here. 

Handley Rock is a secret treasure discovered for the first time by many, only because they hiked at Edgewood Nature Preserve. Reminiscent of Never Never Land,skull shaped Handley Rock, beckons to local rock-climbers,mystics, romantics, and pirate-loving locals.

When hiking Edgewood's Sylvan Exercise Loop, I begin to look for Handley Rock shortly after I pass the first half mile posting shortly past the Waterfall. As soon as I see gaps in the vegetation  that screens the valley that lies roughly southeast(East is towards the San Francisco Bay. South is San Jose) I begin scanning for this mysterious piratical dome that formed from Whiskey Hill sandstone. 

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Resources

Friends of Edgwood  http://www.friendsofedgewood.org

Handley Rock in 365 days of things to do in Redwood City  (includes map link)  http://redwoodcity365.com/?p=23

Take Five (Hiking Edgewood)

Aphelocoma californica - CA Scrub Jay

Did you get my good side?

This Edgewood local knows the girls are checking him out!

~ ~ ~
Resources
Aphelocoma californica - Western Scrub Jay (CA Western Scrub Jay)

Hiking Edgewood: Clean Skies! (haiku)

Clean view of the bay.

Sure do appreciate it!

Little rain goes far.

~ ~ ~
If you're hiking Edgewood - http://www.friendsofedgewood.org

Drought: Deerweed for New Years (Hiking Edgewood)

Lotus scoparius is commonly known as deer weed
(click on the illustration for more fiery detail)

Hot, dry, New Years Day

Oh! Lotus scoparius 

Keeps Edgewood aflame

A Pickup Walk (Hiking Edgewood)

(co-published in http://EdgewoodSecrets.blogspot.com)

Invasive European grasses and Star Thistles
are one foe the Edgewood Warriors fight
tooth and nail

I know it's called a pickup game, when you run into other basketball players on the courts and have a competitive round. So I guess I had a pickup walk today.

I was hiking Clarkia and Lower Ridge trail, just appreciating the fact that my knees are back in service, when I found myself picking up a lone hiker, Diane. She hadn't found her hiking group, was pretty unfamiliar with the trails (she'd come in via Sunset Gate) and wanted company.

I ended up docenting  along Clarkia, up to Inspiration Heights, down along Lower Ridge trail to the fence that overlooks the Bluebird meadow and back to Sunset Gate, at which point we ran into her group

Discussed and seen along the way...

- Serpentine rock and soil discussion and challenge of nitrogen dump/non-native plant invasion. Also successes of Weed Warriors due to just plain hard work plus cunning and analysis 

- Why the erosion scars aren't a trail/the challenges of their trail-like appearance - And yes we ran into two erosion scar explorers that I had a chat with on Inspiration Heights. Hopefully they didn't go back that way, as I encouraged them to go on the trail. Much discussion with my new hiking pal, over how to discourage this behavior without being patronizing and actually getting desired behavior. 

- We met Steve and  Denora  out rangering and Diane had her birthday photo taken with them. Steve indicated perhaps more signs indicating erosion scar versus trail may be forthcoming?

- We enjoyed the beautiful summer colors of deerweed, tarweed and poison oak. We both think the seedheads we saw in with the tarweed is yarrow. I keep meaning to look up that pink dry headed looking flower that's in and around Ridge trail. I think it's a seed head not a bloom. It reminds me of the sea thrift I saw in Cornwall, just a little bit.

- Told her how she could find the plant database/photos lookup  on Friends of Edgewood web pages, as both of us were wondering about that pinky flower/seed head.

- Told her to come look for the brilliant green Hair Streak Butterflies during bloom time for the deerweed. Discussed the importance of the Bay Area Checkerspot and how it saved the preserve. Diane was glad we weren't hiking through the golf course this area was, at one point, destined to be.

- Diane wanted to know about animals we see in the area. Pointed out Western Fence Lizards, mentioned my few views of rattlers by me and others and where noted ...Much pointing to the area on Serpentine Loop Trail  from Ridge Trail looking down to discuss the scurry zone and habits of the cottontails. Also discussion of the jackrabbits when they go mad with testostorone in the springtime and their hare 'ness ( Here's a nice web link on their being hares and not rabbits http://animals.nationalgeographic.com/animals/mammals/jackrabbit/). 

- Pointed out the frog pond, looking down on it from Ridge Trail (would be easy to have a talk about water in the preserve at this point, wouldn't it?)

- We should have asked Denora about the bobcats when we met up with her and Steve later on, as I know she once said there is one living in the vicinity of the ranger's house. Durn

- Of course we chatted about cougars. Doesn't everybody like to know about cougars?

- We talked about the different types of oaks, and after some quick mental review. I remembered  (and I think properly id'd ) coast live oak (thanks to a hint Alf once gave me), contrasted them with a description of Valley Oaks, and mentioned the scrub oak. I think that's what grows on Upper Clarkia, not Leather Oak? Remembered to tell her about the naturally hybrid ones.

- We talked about the Western Blue Birds

Dianne was very pleased with her one-on-one docent walk! We found her group back at Sunset Gate and she introduced me all around and bragged about getting the goods on the preserve. I was lightly quizzed by a couple of folks in regards to seeing freshly blooming Farewell to Spring, and I agreed I had seen one too. Was able to respond "Clarkia, like this trail" when asked what is the real name. So I guess I passed the test. Good thing that was one I know.

Despite it not being a high bloom time, there's a lot to talk about out in the chaparral zone

One Fine Little Lizard (HIking Edgewood)

Western Fence Lizard

We share the trail at Edgewood

Brother of my heart

Fantastical Miner's Lettuce

When I Dream of Miner's Lettuce

Miner's Lettuce, Claytonia perfoliata, is a common San Francisco plant that thrives and blooms in the open space areas where I hike as well as the shade of my own backyard.  It is munch'able, but I often wonder if the California gold miners of '49 were really into salad...

The Wake-Robin: Three is Magic (Hiking Windy Hill)

Trillium or Wake-Robin

Spring is, indeed, bustin' out all over at Windy Hill Preserve in the Mid-Penninsula Regional Open Space.

An encounter with the three perfect white petals and trinity of glossy leaves in this small white trillium, or Wake-Robin, is a great way to exit the day-to-day and head for another realm.

When it comes to trilliums, it's easy to accept that three really is a magic number.

CA Coast Range: Smack Dab in the Middle

Every time I come out of class at Cañada College,
 I get to see this marvelous view of the CA Coast Range.

Chock full of blu schist, serpentinite, and chert rocks these mountains are part of an accretionary wedge of the same ancient volcanic arc from which the Sierra Nevada batholith formed.

Go ahead and click on the illustration above
for a lovely  up close and personal view of
The CA coast range from Cañada College

Sinuous Los Trancos Creek

Click on the illustration above
for an up close and personal view
of Los Trancos Creek

The trail up Windy Hill has more than it's share of moments.

Fungus Amongus: The Pink Ones Are Toxic

Hiking Windy Hill 

Click on the toxic princess above

to really enjoy the details

But don't touch, 

if you run into  her on a post-rain hike

As was hoped for, we got a bit of those storms the Oregonians were so kind as to send down our way. Two guesses as to what quick crop the rain brings out in the Santa Cruz Mountains.

I chatted with a mushroom gathering fella close to the end of my hike at Windy Hill Open Space Preserve today. You aren't actually supposed to gather mushrooms in the Open Space, but what do you say? My husband saw another couple at the top of the hill with collecting bags as well. Hopefully enough people are concerned about the possibility of eating the wrong 'shroom that the area doesn't get stripped of it's fungus-bearing potential.

This man was gathering mushrooms under an oak tree. I asked him about this pink beauty I'd snapped on my camera phone further up the hill. He knew just the spot she grew.

"Oh those are very toxic," he said in an English thick with a mellifluous some-kinda-European accent I couldn't place. "They are so toxic that if you even touch them with your fingers, the toxins will enter your bloodstream and .... " he made a vague gesture as to where I might now be, had I had the nerve to perhaps prop up this little pink-topped native plant to enhance her photographic possibilities. The location of his casual gesture was somewhere down the side of the trail in a rather steep ravine.

Don't eat the pink ones.

Edgewood Shale Once an Ocean?

Edgewood Shale, The ultimate in Time Travel
Ancient Muds Tells Us Still Waters Once Lay Deep Here

Friends of Fennel

Please click on the illustration above

to fully enjoy this postcard

I always feel a little guilty when I enjoy this invasive survivor. Fennel is certainly no friend to boosters of the California Native Plant Society, but it's still a gorgeous invader in the scruffier parts of town.

By the Waterfall: Late Blooming Honeysuckle

There are a few stray blooms of honeysuckle blooming in latish June near the waterfall on the Sylvan Trail in Edgewood Park. This is one of my favorite spots for a bit of time travel. You just couldn't find a better time portal than a shady glen like this.

 It's the spot where I took a short trip back to visit with an Ohlone Rumsen family group last fall.

Remember? Here's the story

        - Indian Summer at Edgewood (No. 1) Creekside 

        - Indian Summer at Edgewood (No 2) : Oak Apples

       - Indian Summer at Edgewood (No. 3): Rose Hips

(Co-Published with ...

The Simple Romantic Travels Through Time )

Mariposa: The Time Travellin' Spud

(Co-Published with The Simple Romantic) 

Click on my Jolly Mariposa Lily Illustration Above to Get Up Close and Personal 

With This Native Darling

Mariposa, as I bet you know, is the Spanish word for "butterfly". That was what this beauty's petals, apparently, made some early botanist thing about when they first saw this late spring/early summer flower.

On my morning study break, I took a time travel jaunt back to the middle of the 18'th century. There I found that the native Lamishan (an Ohlone people) think it's equally fanciable as a taste treat.  The group I met up with were digging up the bulbs of this (as we'll as some of the  other local Calochortus). One of the women told me that her cousins up valley usually boil or roast them. Her folks, however, like them fried. The results looked, and tasted, much like what  I do with a friendly spud.

Hillside Gooseberry Setting Fruit (Hiking Edgewood)

Click on the illustration below for the full fruity details

Lizards 'n Lyme (Hiking Edgewood)

(Click on the illustration below to get up close and personal with this Californian's favorite lizard)

As an Edgewood docent I ask others, "Why do you think it's important to preserve nature, beyond beauty, mystery and all that other sensory, emotional stuff?". Of course the answers vary. I've been tempted to go off on my own ideas about increasing bee-hive health with a diverse plant offering, versus the monoculture imposed by modern agricultural methods, but that's another blog posting all together.

Turns out that the Western Fence Lizards that have been scampering around under my feet like crazy lately (I think it might just be high-hormone mating season for Sceloporus occidentals) is Ma Nature's way of curing Lyme disease. Am I the last to learn this?

Apparently in California, where these lizards abound, the deer ticks that transmit Lyme disease bacteria loose their Lyme-oomph when they bite the lizards. This article from the CA Academy of Sciences explains it all. I've been told, but cannot find a reference on the web, that the result is, that only about 1-2% of deer tick bites where Western Fence Lizards roam produce Lyme disease in humans, versus the over 80% in other parts of the country. Don't quote me on that, however, since I can't find a source for you.

Wikipedia also has an article about this Lyme-disease link.