Sunday, December 12, 2010
Rhododendron scabrifolium v. spiciferum
Thursday, December 9, 2010
Arisaema
Weird flowers in the spring, stunning seed heads in the fall, arisaemas are not the typical pretty flower. In the same family as Calla Lilies, the flower has a similar structure, with a spadix in the center and a spath surrounding it. Here the spadix has matured into a seedhead with bright red fruits, and the spadix has dried up around it. This is one of many Arisaema species at the UC Botanical Garden.
Wednesday, December 8, 2010
Malus hupehensis--Tea Crabapple
Tuesday, December 7, 2010
Acer palmatum--Japanese maple
Saturday, December 4, 2010
Dahlia imperialis?
Well, I guess nobody knows exactly what Dahlia this is, now blooming at the UC Botanical Garden, but D imperialis is close. I have often heard people call it Thanksgiving Dahlia or Christmas Dahlia because it blooms this time of year. The flowers may be pink or white, single or double, but his plant is TALL. Eight to Twenty Feet Tall! It grows easily in this area; all it takes is putting a section of the stem (which looks like bamboo) in the soil. It takes at least a year to get to blooming size, but then they take care of themselves. Some support can be nice, and they don't like a hot, dry location, so next to a fence might be good. Very easy and has beautiful flowers at a time of year when not much is blooming. A great addition to a bay area garden.
Friday, December 3, 2010
Sassafras Tzumu
Three types of leaves: football, ghost and mitten. Can you find them all in the pics? And beautiful fall color. Just proves that there is always something beautiful at the UC Botanical Garden. I've read that there are only two main species in this genus, S. Tzumu from China, and S. albidum from eastern North America. Main species? Maybe there are subspecies? There is also S. randalense. S. randalense and S. Tzumu are Asian and moneocious. S albidum is dioecious. They are all butterfly host plants. The American one hosts the spicebush butterfly and the Taiwanese one hosts the broadtailed swallowtail.
Wednesday, December 1, 2010
Tea is Blooming--Camellia sinensis
Tea is a camellia with small white flowers. Whole books have been written about camellia sinensis, but I will limit myself to a couple of paragraphs here. One of the most interesting stories is the one that links the industrial revolution to tea. Alan Macfarlane, an anthropologist at Cambridge University postulates that the IR would never have been possible without tea. For thousands of years, people who gathered in dense communities had problems with keeping the water clean enough to drink and suffered from dysentery and other intestinal problems. To avoid the sickness, they often drank a sort of "near beer," water with a small amount of alcohol in it to make safer. The problem was, drinking alcohol at breakfast, lunch and dinner makes people a bit dumb. But with the advent of tea, people could have safe water without the alcohol. The ritual of boiling the water kills germs, but the tea is also a sort of antibiotic. Thus, people could move to cities, remain healthy, and use the full power of their brains. In addition, workers who drank tea in the afternoon could work longer because the caffeine is a stimulant. Many factors played a part in the Industrial Revolution in Britain. Perhaps tea was one factor.
Tea contains the same stimulant found in coffee, caffeine. In tea, the highest concentration of caffeine is in the youngest leaves. That is because the caffeine is an insecticide and it protects the youngest, softest, most vulnerable leaves from insects. This also means that when harvesting, the best tea is made with the youngest leaves from the tips of the branches.
(Intoxicating Plant)
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