There are some imperfections, but generally the unopened disk florets comprising the head of this immature sneezeweed blossom are arranged so that each floret is surrounded by six other florets. This is an example of hexagonal close packing, and is probably the most dense arrangement of florets that can be achieved in this spherical flower head.

The photograph of the Bigelow's sneezeweed (Helenium bigelovii) was taken on an out and back run on the Pacific Crest Trail from Vincent Gap to Little Jimmy Spring during July 2007.

Related post: Bigelow's Sneezeweed & Bee

Plumed achenes of curl-leaf mountain mahogany (Cercocarpus ledifolius) on the Chumash Trail. From Tuesday's run.

Prickly poppy (Argemone munita) in upper Cheeseboro Canyon.

From today's run of the Cheeseboro Canyon keyhole loop, starting from the Victory trailhead of Upper Las Virgenes Canyon Open Space Preserve (formerly Ahmanson Ranch).

Here's a Google Earth image of a GPS trace of the loop, and links to trail maps for Upper Las Virgenes Open Space Preserve and Cheeseboro/Palo Comado Canyons.

There is yellow, and then there is the YELLOW of the mariposa lily, Calochortus clavatus. Remarkable in its brightness and purity, its yellow is one of the most intense and vibrant concentrations of color I have seen in the chaparral.

It is relatively uncommon, and this is one of a few seen along trails in Rocky Peak Park, and the Simi Hills. Of the varieties listed in the Jepson Manual, this appears most similar to the slender mariposa lily (Calochortus clavatus var. gracilis).

The insect emerging from the flower is a small bee -- probably a sweat bee (Halictidae). These bees were found on several of the mariposa blossoms along the trail. They were usually busy slurping nectar from the gland near the base of each petal, and partially hidden by the club-like hairs that gives the species its name.

From a run earlier this week in Rocky Peak Park.

Related posts: Mountain Mariposa, Plummer's Mariposa Lily

Technorati Tags: mariposa lily

Goldenstar (Bloomeria crocea) -- from a run at Upper Las Virgenes Canyon Open Space Preserve, formerly Ahmanson Ranch.

Hummingbird sage (Salvia spathacea) at Sage Ranch Park, near Simi Valley, California. From a run earlier this week.

Technorati Tags: symmetry, hummingbird sage

Canyon sunflower (Venegasia carpesioides) tends to grow along cooler sections of chaparral trail. Its rich green leaves and yellow composite flowers are a refreshing sight on a thirsty run.

This canyon sunflower is on a north facing section of the Chumash Trail at an elevation of about 2350 ft. The canyon sunflower population in this area expanded following the 2003 Simi Fire.

On a separate note, it's that time of year again -- at the end of my run this Southern Pacific Rattlesnake was in the street at the Chumash Trailhead on Flanagan Drive in Simi Valley, California.

Related post: Southern Pacific Rattlesnake

Technorati Tags: canyon sunflower, rattlesnake, Simi Valley

Indian warrior's varying tones of carmine contrast sharply with its lush green leaves and create a striking combination of colors when seen along a trail. Surprisingly, it is the green of its leaves that is one of its interesting features.

Recumbent view of goldfields (Lasthenia spp.) on Lasky Mesa in Upper Las Virgenes Canyon Open Space Preserve.

Related post: Dealing With Drought

This year's surprisingly generous rainfall is already producing an explosion of wildflowers in the Simi Hills and Santa Monica Mountains.

These are Padres' shooting star (Dodecatheon clevelandii ssp. patulum) and ground pink (Linanthus dianthiflorus) at Sage Ranch Park. Both are California natives.

Related post: Shooting Stars

Update May 18, 2008. Gov. Schwarzenegger's revised state budget, released May 14, rescinded the funding cuts that would have resulted in the closing of 48 California state parks. For now it appears these state parks will remain open. For more information see the Save Our State Parks and Campaign To Save Topanga State Park web sites.

What a fantastic morning! Taking advantage of a break in a series of Southern California rain storms, I was running on Fire Road #30 near the entrance of Topanga State Park. The sun had found its way through a broken layer of clouds, and bright patches of sunlight highlighted the rugged terrain. Down in a steep canyon on my left, wisps of steam wafted from the chaparral.

Following an  "On your left!" a group of mountain bikers swept past. Working up the hill toward the Hub, good morning's were exchanged with other runners, hikers and cyclists.

Many of us live and work in California because of its diverse open spaces, parks and wilderness areas. Incredibly, this popular urban park, along with Will Rogers State Historic Park, Santa Susana SHP, Los Encinos SHP, Mt. San Jacinto SP, and forty-four other California State Parks have been slated for closure in the fiscal year 2008-09 California state budget.

According to an article in the Los Angeles Times, the selection was made according to the dour formula of those parks "that had the fewest visitors, produced the least revenue and would be the easiest to close off to visitors."

This formula necessarily targets less developed parks, such as Topanga State Park, ignoring those intrinsic values that make a park a park. The formula targets walk-in parks, and the hikers, cyclists, riders, and runners that simply enjoy the outdoor experience. The formula targets day use parks in urban areas that don't need campgrounds or additional services. And, the formula targets those with less to spend on recreation.

So is this how we are to appraise the value of our public lands? Closing our state parks would be astonishingly short-sighted. Their varied trails, terrain, and habitats are accessible to millions, providing a therapeutic escape from the rigors of city life, and experiences and insights that can only be gained from the out of doors.

Today I was doing one of my favorite runs in Topanga State Park. It links several trails and visits several popular destinations in the park -- the Hub, Parker Mesa Overlook, Trippet Ranch, Eagle Rock, and the Musch, Garapito and Bent Arrow Trails.

This two minute slide show is a compilation from a few such runs. It is a small selection of photographs from one set of trails, in just one state park.

For more information regarding Topanga State Park, see the Campaign To Save Topanga State Park, Topanga Canyon Docents and California State Parks web sites.

Technorati Tags: slide show, California state budget, California State Parks, Topanga State Park

Listed by the California Native Plant Society as being rare, threatened, or endangered, Santa Susana tarweed (Hemizonia minthornii) can be found where sandstone outcrops of the Chatsworth formation occur, such as in the Santa Susana Pass area in the Simi Hills.

This photograph was taken on a run at Sage Ranch on October 1, 2007.