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Food plants rich in anthocyanins include the blueberry, raspberry, black rice, and black soybean, among many others that are red, blue, purple, or black. Some of the colors of autumn leaves are derived from anthocyanins. [1] [2] Anthocyanins belong to a parent class of molecules called flavonoids synthesized via the phenylpropanoid pathway.
Protocyanin is a blue pigment of cornflower (Centaurea cyanus). It is composed from succinylcyanin (anthocyanin), malonylflavone (co-pigment), iron and magnesium anions, and two calcium ions to stabilize the complex. Interesting is that the same anthocyanin when is not in complex with the metal ions is present in red rose petals. [8]
The blue color is produced mostly by the anthocyanin petunidin on the outside of the tomato where the fruit is exposed to direct sunlight. [1] The shaded side of the fruit is green when unripe, red when ripe, and the inside is red or deep pink. The tomatoes are small, about 2 inches across, round, and grow in clusters of 6 to 8.
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Valley oak near Mount Diablo. California is home to many deciduous and evergreen oaks, often occurring in oak woodlands: Valley oak (Quercus lobata) - the largest of the oaks. Leather oak (Quercus durata) - an evergreen shrub endemic to serpentine chaparral. Blue oak (Quercus douglasii) - in the Central Valley foothills and Coast Ranges.
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The Flora native species of California. This category contains the native flora of California , as defined by the World Geographical Scheme for Recording Plant Distributions . Taxa of the lowest rank are always included; taxa of higher ranks (e.g. genus) are only included if monotypic or endemic.
The combination of drought-like conditions — Southern California has had less than 10% of average rainfall since Oct. 1 — and powerful offshore winds that hit the region Tuesday prompted fire ...