Speckled Clarkia (Clarkia cylindrica ssp. cylindrica) along the Garapito Trail in the Santa Monica Mountains, near Los Angeles.

Because they tend to bloom in late Spring and early Summer, this species of Clarkia and several others are sometimes referred to as Farewell to Spring.

From last Sunday's out and back run to Saddle Peak.

Related post: Elegant Clarkia

Leaves of climbing penstemon (Keckiella cordifolia) on the Hondo Canyon Trail. Its seems to have especially benefited from our Winter rain, and its orange flowers are widespread in the chaparral this year.

From Sunday's out and back run to Saddle Peak.

From Sunday's run from Three Points to Waterman Mountain.

Notice anything peculiar about the Mountain Phlox (Phlox austromontana) in this photo?

Usually 5-lobed, several of the blossoms here have six lobes.

These are along the Cougar Crest Trail, near Big Bear Lake. The photo is from a couple of weeks ago, the day before doing the Holcomb Valley 33 mile Trail Run.

The Havasupai reportedly use a preparation made from the plant (externally) for body aches.

From a recent run on the Farmer Ridge trail, which works up onto the ridgeline above Mulholland, about a quarter mile west of its junction with Sullivan Ridge Fire Road. The single track trail bypasses a 1.1 mile stretch of Mulholland fire road, and is also about 1.1 miles long.

From a mid May run in Upper Las Virgenes Canyon Open Space Preserve, formerly Ahmanson Ranch.

Davidson's Phacelia (Phacelia davidsonii) near Cooper Canyon trail camp, in the San Gabriel Mountains. From last Sunday's run.

Washoe phacelia (Phacelia curvipesa) is similar, but it's blossom is not as large.

Snow plant emerging from pine needles and other detritus on the forest floor.

From Sunday's run through Cooper Canyon.

Related post: Snow Plant

Winter vetch is a vining legume you'll see in patches along trails in lower elevation chaparral in Southern California. It's flowers are an unusal purple, and a closer look reveals various shades of violet, purple and rose.

Its capability to add nitrogen to soil gives it value in crop rotation and no-tillage farming. It is an invasive plant, not native to California.

From today's run in the Simi Hills.

From today's trail run to Castle Peak in the western San Fernando Valley.

Updated April 9, 2011.

Chinese houses (Collinsia heterophylla) along the Secret Trail in Calabasas, California. From a trail run on March 30.

Was originally identified as Davidson's Blue-Eyed Mary (Collinsia bartsiifolia var. davidsonii). Took a closer look at flowers in the same colony this year, including  the internal structure of the flower. The presence of a curved basal spur > 1 mm on the two upper (stamen) filaments;  corolla throat as wide as long; and calyx lobes generally sharp-tipped (per key in Jepson) distinguishes the species as the more common Collinsia heterophylla.

From a run this week on the Secret Trail in Calabasas, California.