Thistle is a pale purple-ish color resembling the thistle plant. It closely resembles the color Wisteria. Authors of web pages have a variety of options available for specifying colors for elements of web documents. ... The RGB color model utilizes the additive model in which red, green, and blue light are combined in various ways to create other colors. ... Cyan, magenta, yellow, and key (black) CMYK (or sometimes YMCK) is a subtractive color model used in color printing. ... The hue saturation value (HSV) model defines a color space in terms of three constituent components: HSV color space as a color wheel Hue, the color type (such as red, blue, or yellow): Ranges from 0-360 (but normalized to 0-100% in some applications) Saturation, the vibrancy of the... Chromaticity diagram - lower right straight border is the line of purple Purple is any of a group of colors intermediate between blue and red. ... Species See text Thistles are perennial flowering plants of the genus Cirsium. ... Wisteria is a shade of purple that resembles the plant Wisteria. ...
See also: List of colors The following is a partial list of colors with associated articles. ...
Thistles in agriculture have a reputation as a sign of untidiness and neglect, and are often found on good ground not properly cared for.
Thistle species introduced from Europe and Eurasia often spread rapidly and become weedy because the natural enemies that keep the populations in check in their native habitat are not found in North America.
Musk thistle flower head is characterized by large brown bracts that resemble a pine cone and the tendency to nod or lean because of the large size of the flower.
Biennial thistles spread only by seed (achenes) that are produced in great number by all the noxious species, ranging from 8400 seeds per plant with plumeless thistle to 120,000 seeds per plant from musk thistle.
Musk thistle is one of the more common biennial noxious thistles and is relatively easy to identify because it often grows in excess of 6 feet tall, has very large flowers that tend to droop, and the flower has very characteristic brown bracts that resemble pine cones (Figure 2A).
Wavyleaf thistle is a perennial native plant that is often confused with Flodman thistle.
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