Holly - RIP

Holly: March 30, 2005 - June  24, 2014

Today I am very sad for losing her, hopefully in the future I will be able to smile again for the good times we had together.

Fairy Duster

As a naturalist, I like to have a theme in mind when I lead an interpretive walk. I see this as a means of engaging the audience’s interest, as opposed to just wandering around identifying plants until their eyes start to glaze over. One of the themes I use is “does the common name of this plant make sense”.  A favorite plant for this discussion is the Fairy Duster, Calliandra eriophylla. It takes little imagination to see that the fluffy pink blossoms do resemble feather dusters scaled down to fairy size, assuming we are thinking of Tinker Bell instead of Titania.

The flowers appear between late winter and late spring. They have dense clusters of pale to deep pink stamens and are about two inches wide. I think that they are quite attractive; and, in fact, Calliandra is derived from the Greek kallos, "beautiful," and andra, "stamen”. The leaves are also interesting being twice pinnately compound with each division bearing five to ten pairs of leaflets.

The plant, also known as False Mesquite, is a densely branched shrub, about two feet tall and twice as wide, native to western North America. A member of the Pea Family (Fabaceae), it belongs to a group of primarily tropical plants that include Acacias and Mimosas. However, Fairy Duster grows in sandy washes and on slopes in the arid desert and grasslands of California, Arizona, New Mexico and Texas; and Mexico.

But, to say it occurs in California is a bit misleading as it is found only in the Creosote Brush Scrub community and then seemingly limited to Imperial and San Diego Counties. Due to this geographic circumscription , it is included in the California Native Plant Society Inventory of Rare and Endangered Plants on list 2.3 (rare, threatened, or endangered in California; common elsewhere). In the interest of full disclosure, I would like to point out that one specimen was collected by Dr. Robert F. Thorne (of RSABG) on April 12, 1964, in Riverside County and that there is also a questionable 1881 accession from Kern County. I, myself, first encountered Fairy Duster while hiking in Riverside County. It was on land that was starting to be developed somewhere outside of Palm Springs, so it may not have been a natural occurrence.

Wherever we find it, I think it offers people an opportunity to ask people to look more carefully at nature and by observing this one flower they might go to focus on other aspects of nature rather than passively walk though it.

California Dodder

One of the sites I refer to when preparing to write about a plant I encounter in my rambles is maintained by the Consortium of California Herbaria  which provides information about California vascular plant specimens that are housed in participant herbaria. One can search on just about any plant and obtain a list of accessions from around the state.

California Dodder (Cuscuta californica), hits close to home as it has records dating from 1897 to 2009 for specimens found in and around Claremont. Two of these are housed in the Rancho Santa Ana Botanic Garden herbarium. One was collected from the Bernard Field Station, just to the east. The other was found along Thompson Creek, where Holly and I often pass by the plant.

California Dodder

Cuscuta californica, also called Chaparral Dodder, is an annual parasitic herb or vine that is native to California. It is also found outside of California, but is confined to western North America. Dodder is readily identified by its threadlike, hairless, yellow, orange, or red shoots which twine around host plants eventually creating a tangled mat. One notable feature is that it does not usually have roots that reach the ground. Instead, knoblike organs along the shoot (haustoria) penetrate the host stem. Shoots either lack leaves or have very tiny red, yellow, or orange scalelike leaves pressed close to the stem. It tends to bloom from May through October. The white flowers are tiny, only about 3 to 6 millimeters wide. The fruits are even smaller.

Dodder once had its own family, but it is now consigned to CONVOLVULACEAE, the Morning Glory Family. The epithet Cuscuta seemingly comes from Cuscu'ta a name of Arabic derivation meaning "dodder”. The common name, Chaparral Dodder, tips us to one of its habitats. It is also found through out the state in many other plant communities such as forests and grasslands. And, of course, “the City of Trees and PhDs”.

Laurel Sumac - Malosma laurina

One of my fondest memories as a teenager is running through the interior of Los Angeles’ Griffith Park right after a rain or on a cool foggy morning and smelling the fragrances of the plants of the the chaparral and scrub-covered hills. One of the main contributors to that aroma was Laurel Sumac, then classified as Rhus laurina, but now known as Malosma laurina.

This 10 to 20 foot tall shrub is the only species in the genus Malosma. It native only to Southern California and the Baja California Peninsula; and found in both the Chaparral and Coastal Sage Scrub communities from sea level up to 3300 feet in elevation. The shiny red-green leaves are four to ten inches long and have a somewhat taco shell fold. When flattened, they have the shape of laurel leaves which gives us the common name Laurel, with Sumac in recognition that it is in the Sumac Family—Anacardiaceae. (Just in passing, this family also includes cashews, mangos, and poison oak!)

Locally, Laurel Sumac occurs naturally in the hills fronting Thompson Creek in Claremont. This is fitting for its historic geographical and economic context for our region. Malosma is not tolerant of hard frost. Something is has in common with two important commercial crops in California. Anywhere it grows naturally turns out to be ideal for avocado and citrus as well. Growers became aware of this and began to use it as a “sentinel plant” when looking for land for their ranches.

While I am fond of the fragrance I would be hard pressed to describe it. I am not alone in this. The Jepson Manual says Malosma is Latin: “from odor which resembles that of an apple.” However, Nuttall's description says the aromatic odor is “something like that of the Bitter Almond." I suggest you check it out for yourself. 

At the Falls

At the Falls
Originally uploaded by The Marmot

Eaton Falls

“Hither come the San Gabriel lads and lassies, to gather ferns and dabble away the their hot holidays in the cool water, glad to escape their commonplace gardens and orange-groves.”

- The Mountains of California by John Muir

About the beginning of August 1877, the naturalist John Muir made a trip into the San Gabriel Mountains to the northeast of Los Angeles. The world has changed quite a bit since then as the range no longer overlooks the vineyards and groves he describes. Today, there are “seventy-two suburbs in search of a city” as some other author has famously written. However, somethings do remain the same as my daughter, granddaughter, and I discovered this past weekend.

Muir’s ramble, as described in The Mountains of California (in a chapter called The Bee-Pastures), took him through Pasadena and up the boulder strewn bed of Eaton Creek into Eaton Canyon. The three of us, starting off at the Nature Center, probably did not exactly follow in his footsteps as flood, fire, and human intervention over the intervening years have altered the landscape. Our path began as a fairly easy, sun-baked, 1.1 mile amble along a fire road through the Eaton Canyon Wash, which has some commendable live oaks, to the Mt. Wilson Toll Road bridge. After that it got a little more interesting.

Passing under the bridge the path narrows, enters the mouth of the V-shaped gorge that is the proper canyon, and follows the creek bed for the most part. The going is not too rough, although there is some boulder-hopping and/or wading involved in several stream crossings. The less agile, such as myself, may have to scramble in a couple of steep places. Afoot & Afield Los Angeles County by Jerry Schad calls this a "Moderate" hike,i.e., suitable for all physically fit people. Becca, collegiate athlete that she is, bounded right along and got only one foot wet the entire hike. I was in the water so often that I was very glad to have worn my “canyoneering” shoes and shorts. I have little doubt that I was the oldest hiker out there that afternoon and people of all ages, shapes, and sizes make the trip. And, about a half mile past the bridge, we all see what Muir saw.

The cascade of Eaton Falls still plunges through a notch in a ledge and falls some thirty-five or forty feet into a pool. The face of the cliff still has ferns and mosses. Even though there are no more orange groves to escape from, people still come to seek relief from the summer heat and enjoy the sound of the crashing water.

While it was more than a little crowded, we enjoyed sitting around watching people and dogs splash and frolic in the roundish pool which seems to be about three feet in depth at its deepest. I took a few photos and we returned the way we came arriving at the parking lot some two and a quarter hours from our original starting time.

I highly recommend this hike to anyone who wishes to see what might be the finest waterfall in the San Gabriels. Just Google map your way to the Eaton Canyon Nature Center at 1750 North Altadena Drive, Pasadena, CA and take the Eaton Canyon Falls Trail.