Showing posts with label sage scrub. Show all posts
Showing posts with label sage scrub. Show all posts

Monday, May 26, 2014

California Sunflower

California Sunflower by Cliff Hutson
Coast Sunflower by Cliff Hutson
Encelia californica: California Sunflower, also known as Coastal Sunflower and California Encelia.  I have seen it referred to as Brittlebush, but that would be Encelia farinosa to me.

California Sunflower grows in the Coastal Sage Scrub habitat of Southern California.

Coastal sage scrub species have adapted to an ecosystem that rarely freezes in the winter and only occasionally experience temperatures over 90-degrees F during the dry California summer.

Tuesday, May 20, 2014

Coast Cholla


Coast Cholla (Cylindropuntia prolifera) is another one of those species which has undergone a name change since I first encountered it. Frankly, it never made sense to me that chollas were included with the beavertail and prickly-pear cactus in the genus Opuntia, as they did not seem to resemble each other in any discernible to the average onlooker. But, science has caught up with the layperson, as it were, and chollas now have their own genus. The name Cylindropuntia comes from the Greek kylindros, "a cylinder" plus the name of the old genus Opuntia. The species name prolifera is a nod to the plant's proliferation by means of off-shoots.

Cylindropuntia prolifera is native to Southern California where it grows in coastal sage scrub, chaparral, beach, and bluff habitat. It crops up from Santa Barbara County south. Close to home, this cactus may be found along the coast of the Santa Monica Mountains, but it is kind of rare. It seems to be more abundant on the Palos Verdes Peninsula. It then comes into its own in San Diego County and Baja California.

Like most members of the family Cactaceae (Cactus) it has spines. Spines are highly modified leaves. This cholla has two types. The larger spines are quite noticeable and merit some caution. But, around the base of the clusters of those spines are little tiny spines which are called glochids. Glochids have a barbed tip and may be even more treacherous than the actual spines. They can easily burrow into flesh and are very difficult to remove. 

Coast Cholla

Aside from the potential for great bodily harm, the plant is very attractive. The grey to green cylindrical joints make for stems that are four to six feet in height and may be thought of as treelike. Reddish purple flowers, with rounded blossoms about an inch in diameter, will normally bloom from April through June.

Monday, March 4, 2013

Hoary-leaved Ceanothus



hoary |ˈhôrē|
adjective ( hoarier , hoariest )
1 grayish-white : hoary cobwebs.
(of a person) having gray or white hair; aged : a hoary old fellow with a face of white stubble.
  • [ attrib. ] used in names of animals and plants covered with whitish fur or short hairs, e.g., hoary bat, hoary cress.

There are at least 52 species of ceanothus in the world. California is home to 43 species, sometimes known as California lilac, and 13 of these are native to the chaparral of Southern California. The dominant species in our local, lower-elevation, Santa Monica Mountains is Bigpod Ceanothus, Ceanothus megacarpus. However, at higher elevations it is replaced  Ceanothus crassifolius, Hoary-leaved Ceanothus. 

Plants in the genus Ceanothus are divided in to two groups - the subgenus Ceanothus and the subgenus Cerastes. The later is actually the larger group. But, I think that most of us, thanks to its showy displays, are more familiar with the former which is characterized by thin leaves that have three main veins, arrayed alternately on the stems. The leaves of Cerastes are leathery with a single main vein, and generally opposite in arrangement. 

A member of the Buckthorn family (Rhamnaceae) it is a large, evergreen shrub which may grow to twelve feet in height.  The leathery olive green leaves have white fuzzy undersides, which makes them hoary. The field guides I use describe the leaves as being “small”, which seemed a bit vague.  An internet gardening catalog stated they they are 1/4­ to 1/2" long. However, I took some measurements on a specimen at Rancho Santa Ana Botanic Garden and found them to be closer to 1-1 1/2”. Which reminds me of the old taunt - “Who are going to believe, the facts or your lying eyes?” The small (truly about a quarter of an inch), rounded flowers are white with the inflorescences borne on short stalks.

Hoary-leaved Ceanothus is distributed through the Outer South Coast Range, Transverse Range, Peninsular Range, and Northern Baja on dry ridges or slopes below 3700'. Which is to say locally we can find it in the Verdugo, San Gabriel, Santa Monica and San Bernardino Mountains.



There are plenty of chances to see it, let’s go look.

Monday, February 4, 2013

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. 

Wednesday, June 9, 2010

Toloache or Jimsonweed


Toloache or Jimsonweed
Originally uploaded by The Marmot


Datura wrightii

Datura, the name I first learned, is a member of the Nightshade family (Solanaceae) and is not uncommon from Central California to northern Mexico and east across the Southwest to Texas. There is certainly plenty of it around Thompson Creek. (This plant is near the intersection of Mills and Mt. Baldy Road. You can also see near the Girl Scout camp.) So you can imagine my surprise when two of my new field guides: Introduction to California Chaparral and Introduction to the Plant Life of Southern California: Coast to Foothills fail to mention it.

Perhaps this is due to the plant’s seedy reputation. Easily recognized by its trumpet-shaped flowers , it has been used for hundreds of years for its hallucinogenic properties. However, it is as toxic as it is narcotic and has been responsible for the deaths of some seeking to use it for its traditional religious purposes; or more likely, recreation.

Like many Americans of my generation, I first learned of the properties of Datura, also called Jimsonweed, through reading Carlos Castaneda’s The Teachings of Don Juan. His purported experiences led many to go out and try it for themselves. Surprisingly, I never did.

I say surprisingly as I have gone through what I called a Euell Gibbons phase and have an abiding interest in ethnobotany, as evidenced by my work at Rancho Santa Ana Botanic Garden. These pursuits have led me to consume more than a few native plants of California. But, I have a healthy respect for for things that might kill me if I do not know what I am doing and figure to give Datura a permanent pass.

The book California Indians and Their Environment: An Introduction by Kent G. Lightfoot and Otis Parish has a few interesting entries on what they call Toloache. They describe religious uses, such as gaining the ability to transcend reality, and medicinal purposes. Some groups prepared it in a drink as a painkiller and a treatment for a variety of ailments.

Speaking of names, the National Audubon Society Field Guide to North American Wildflowers refers to the plant as Southwestern Thorn Apple. It says that the common name Jimsonweed is a corruption of Jamestown Weed. The story goes that it got the name when many soldiers sent to quell Bacon’s rebellion in 1676 were poisoned by it.

By the way, the typically white flower may be some times tinged with violet.