Tag Archives: Marin

June 27, 2012 · 9:40 pm

Plant of the day: sweet pea

These flashy pink flowers are everywhere right now. Like the Tangier pea that I wrote about a few weeks ago, the sweet pea (Lathyrus latifolius) is an escaped garden plant. It has many sweet-smelling pink or purple flowers growing at the end of climbing stalks. The stem is dramatically flared, or winged, with a flat leaflike shelf projecting out from either side. The leaves are narrow and paired, like bunny ears.

As I mentioned in the last pea post, there are several different kinds of sweet peas growing in the area – I had always thought there was only one! Today’s post is about the true “sweet pea”, which is distinguished by the broad stem wings and by the fact that it’s a perennial, not an annual. You can tell the non-native sweet peas from the native species by looking at the leaves. All the non-natives have the paired “bunny ear” type of leaf, while the native species have many (more than five) leaflets on a stalk.

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June 26, 2012 · 9:18 am

Plant of the day: marsh zigadene (death camas)

Growing alongside a meadow stream are many spikes of pale flowers. This is marsh zigadene, or Toxicoscordion micranthus. A few long, linear leaves sit unobtrusively at the base of the plant, which is decked with several dozen creamy white blossoms. The six-petalled flowers have a small yellow spot at the base of each grooved petal, and a short tight cluster of stamens with oversized anthers.

Marsh zigadene is a native that is usually found growing in damp places, often near serpentine, according to the Flora of Marin. It’s common in this county but is rare elsewhere.

The common name for the several similar-looking species in the Toxicoscordion genus is “death camas.” These species are another example of highly toxic beauty. I have always known these plants as Zigadenus species, but they were recently moved to a different group (something that is always happening in the botany world – it can be hard to keep track!). They are still listed in most floras under the old name, but are in online databases under the new name.

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June 25, 2012 · 8:55 am

Plant of the day: chaparral pea

At first glance, the chaparral pea looks like a French broom… with bright pinkish-purple flowers. But this pretty bush is a California native. Pickeringia montana has medium-sized flowers and three-leaftleted leaves that are a shiny, vivid green. It can grow to more than six feet tall, and sprawls a little – just like broom does. But if the color and the shiny leaves weren’t enough to convince you that this isn’t a broom, then the thorns might do the trick! So watch out for it when you’re hiking.

It’s often found (as the name suggest) in the chaparral. Black-tailed deer love to browse on it, delicately nibbling their way around the thorns. This pretty shrub doesn’t reproduce well by seed in this area, but it does spread by rhizomes (spreading underground stems) or from its own roots. It comes back strongly after a fire has burned through.

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June 24, 2012 · 9:54 pm

Plant of the day: yellow mariposa

A constellation of yellow lilies blooms on a serpentine ridge atop Mt. Tam. The yellow mariposa lilies (Calochortus luteus) are little works of art: delicate patterns of red and orange decorate the inside of the petals. No two are alike. Some are plain, some are complex. All are lovely. Beetles seem to think so too; I’ve often seen them hanging out inside. When I saw the ones pictured here, some still held water from the previous night’s rain in their cup-shaped blossoms.

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This mariposa lily is a California endemic that can be found as far north as Humboldt and as far south as LA.

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June 22, 2012 · 4:26 pm

Plant of the day: common bedstraw

Bedstraw – a.k.a goose grass, cleavers, or stickywilly

If you walk through a patch of bedstraw, you’ll know it right away. The stalks grow long and sprawling, and will wrap around your ankles. But they also are sticky! And the leaves are studded with tiny hook-like bristles! They don’t hurt to brush up against, but they certainly do cling. Its other names include goose grass, cleavers – and stickywilly.

The flowers of Galium aparine are tiny, white, four-petalled stars. But the plant’s most distinctive feature is its leaves: they stick out all around the stem like the spokes on a wagon wheel. Bristly, green, tongue-shaped spokes.

Bedstraw is widespread – not only across California, but throughout the US and southern South America, as well as Europe. A Scottish friend was just telling me that kids will grab handfuls and stick it on one another as a game. It’s listed as a native both in California and in Europe, but is described as an invasive/non-native in other states (like Arizona), so it is clearly aggressive. Bedstraw is used as a medicinal plant, taken as a tincture, juice or tea to treat maladies such as adenoids, nodules, kidney stones, roseola, and cough. It’s also been used on the skin to treat psoriasis, and eczema.

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June 19, 2012 · 8:51 am

Plant of the day: California spikenard

Here is a big, tall plant of the shadows. Smallish, round tufts of flowers are surrounded by large jagged-edged leaves. The unopened flowers are particularly beautiful – they look like a sculptor’s version of the childhood game of Jacks.

Usually this plant, which grows up to nine feet tall, is found in deep shady woods. I saw it deep in the Mt. Tam watershed, growing on a hillside among redwoods and tanoaks. California spikenard (Aralia californica) is in the ginseng family, and is used by herbalists as a tonic. The roots (and sometimes other parts of the plant) were used extensively by various Native American tribes to treat a wide variety of ailments from cancer to fainting to stopping periods. Most commonly it seems it was used to prevent skin infection, or as a tonic for colds. It has also been called elk’s clover or prairie sagewort.

Spikenard in fruit (September)

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June 18, 2012 · 10:48 am

Plant of the day: soaproot

For most of the year, soaproot is an innocuous plant. A tuft of narrow leaves grows straight from the ground like a bouquet of wavy, pale green ribbons. But in bloom they’re a spectacular sight! A long, branched stalk shoots up from the center of the leaves, with white flowers scattered along it like stars. Six long but very narrow petals bend backwards, with six long sepals rising surrounding a long slender pistil. The flowers are delicate but large, and striking enough that I saw them while driving and pulled over for a closer look.

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One reason that I haven’t seen this little agave-family lily in bloom more often is that it only opens in the early evening, and closes again in the morning. The flower stalk can grow up to seven feet long, but is delicate enough that it’s easy to miss when the flashy flowers are closed.

Chlorogalum pomeridianum, also known as amole, star lily, soap lily, or soap plant contains saponins and was traditionally used as its name suggests. The crushed bulb foams up nicely and was used to wash hair, bodies and anything else. The plant was also used in fishing, since saponins are toxic to ichtyoids. The crushed bulb would be tossed into a stream, and soon the hapless fish could be scooped out.

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June 15, 2012 · 1:01 pm

Plant of the day: wintergreen

Under the shade of a redwood grove, slender red stalks rise leafless from the duff. Flowers are scattered sparsely along the stalk, with those toward the bottom opening first. Five pink petals nod toward the ground. If you look underneath, you’ll see an oddly curved pistil surrounded by yellow-dusted stamen.

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This is Pyrola picta, or wintergreen. I saw it in Sonoma County, but it grows in almost all parts of the state – and in all states as far east as South Dakota. There are other types of Pyrola, but none that have been found in the bay area. In many places it has a handful of dark green leaves at its base, but around here it is almost always leafless. It also is often white instead of pink.

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June 14, 2012 · 7:56 am

Plant of the day: ice plant

On a trip to the ocean, I wade through a thick reddish-green mat of rubbery plants to get to the beach. The ankle-high leaves are spiky and break off under my feet with a crunch. Large yellow flowers are scattered across this green carpet, each with hundreds of skinny petals surrounding a nest of pollen-dusted stamens. This is Carpobrotus edulis, one of several kinds of iceplant in the area. None are native.

The fruit of Carpobrotus edulis, as its name suggests, was traditionally eaten back in its original territory of South Africa. It was deliberately brought to California, planted to bind coastal soils together and help stop erosion. It does seem to be successful at that job – you can see it growing on beaches and even in colorful tapestries drooping over the edge of cliffs. However, it’s another good intention gone wrong since it has turned out to be highly invasive; an “ecological bulldozer,” along the lines of broom, that wreaks havoc on the delicate dune ecosystem. All the species of ice plant look at least somewhat similar, though not all of them are closely related (there are five species in four different genera, with the two types of Carpobrotus being the most common around here, as far as I can tell).

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June 13, 2012 · 8:36 am

Plant of the day: Tangier pea

Lathyrus tingitanus

Showy pink blossoms, delicate fragrance and winding tendrils – it’s sweet pea season. I’ve been seeing them growing along roads and trails, in gardens, and in bouquets on people’s tables or shop counters. This is an invasive species that it’s hard not to love – a guilty botanical pleasure!

As with yesterday’s plant, this is one where I learned more than I bargained for in the identification. I had naively assumed that there was only one type of sweet pea and that every time I saw that distinctive pink blossom it was the same species. Wrong again! There are several different kinds, and also some native species with paler pink blooms, so you have to look close. Tangier pea, or Lathyrus tingitanus, has the winged stem, two-parted leaves and large, deep pink flowers that mark it as one of the non-native species. You can tell Tangier pea from sweet pea because it is an annual, and also because it only has two or three blossoms per stalk.

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