Hillside walk, 21 July 2015

This was a Tuesday afternoon walk, and it was a cool day. It followed a weekend of wild weather that brought 22 mm of rain at our house (much more fell elsewhere in the L.A. area), some of it extremely heavy, accompanied on Saturday by intense thunderstorm activity that continued for hours. Although there is ample evidence of recent rain on the hillside, the rain wasn't enough to cause substantial amounts of erosion — just minor erosion.

Past experience suggests the impact of the rain on the flora won't be seen for a few to several weeks. However, we are now well into summer, so things may dry out quickly. Actually, there is already some noticeable result, in just a few days, with numerous fresh flowers of blue elderberry (Sambucus nigra subsp. caerulea) in Canyon 2. Perhaps a result of the rain is a single flower of mesa prickly pear (Opuntia x vaseyi), and in Canyon 6 fresh flowers of southern honeysuckle (Lonicera subspicata var. denudata). There are even fresh flowers of non-natives such as filaree and of mustard.

Needless to say, the two ferns on the hillside, coffee fern (Pellaea andromedifolia) and goldback fern (Pentagramma triangularis) are green again, — last week they were completely dried up. Also, the California liverwort (Asterella californica) is once again green, in several locations.

New for this season on the north hillside is the first bloom of saw toothed goldenbush (Hazardia squarrosa), albeit just a single flower among large numbers of buds.

Mary's nephew Tom came on today's walk and he took numerous photos of Graham taking photos of the flowers pictured below on this page. Click here for a link to Tom's photos and various data he recorded using his iPhone app.

Laurel sumac

Clustered tarweed

Cliff aster


California coffeeberry

Sawtoothed goldenbush

A fungus

Rattlesnake weed

California liverwort

Southern honeysuckle

Black sage

California liverwort

Goldenback fern

California liverwort

Coffee fern

Black sage

A moss

Leafy California buckwheat


Blue elderberry

Douglas's nightshade

American lotus


California brickellbush

Vasey's prickly pear


Bush monkey flower


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