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Arctomecon californica |
Arctomecon is a genus of the poppy family Papaveraceae commonly called the bear poppies or bear-paw poppies, after the distinctive appearance of the leaves. Plants are living Organisms belonging to the kingdom Plantae. The flowering plants or angiosperms ( Angiospermae or Magnoliophyta) are the most widespread group Magnoliopsida is the Botanical name for a class of Flowering plants By definition the class will include the family Magnoliaceae, but its Ranunculales is an order of Flowering plants Of necessity it contains the family Ranunculaceae, the Buttercup family A genus (plural genera from Γένος Latin genus "descent family type gender" is a low-level Taxonomic The three species occur only in the eastern part of the Mojave Desert of North America, and are all uncommon. For the indigenous American tribe see Mohave. The Mojave Desert (moʊˈhɑːvi or /məˈhɑːvi/ ( Hayikwiir Mat'aar in Mojave
The plants consist of one or a cluster of basal rosettes of leaves with a generally light blue or grey appearance. Closer examination shows the leaves to be generally wedge-shaped, with the end of each divided into several teeth, and entirely covered with long hairs 5-15 mm in length. The effect is that of a hairy bear paw, whence both common and scientific name (arktos bear + mecon poppy). The solitary terminal flowers are typical of poppies, with 2-3 sepals and 4-6 petals, either white or yellow, and starting out as nodding bud before become erect. The fruit capsule has 4-6 valves, opens from the top as it dries, releasing a handful of small wrinkled black seeds.
Arctomecon habitat is typically the harshest and driest soils of the Mojave, where few other plants survive. They especially seem to favor soils with a high gypsum content. Gypsum is a very soft Mineral composed of Calcium sulfate dihydrate with the Chemical formula Ca[[sulfur S]] O 4·2
Species
Arctomecon californica, also known as the "Las Vegas bear poppy", is the largest of the genus, with stems up to 2 feet high and bright yellow flowers up to 3 inches across. Its range centers around the hills east of Las Vegas, Nevada, in the Grand Canyon National Park, and in the Lake Mead National Recreation Area; it may occasionally be seen growing in vacant lots in the city. Las Vegas ( Spanish: "The Meadows" is the most populous City in the state of Nevada, the seat of Clark County, and an internationally Grand Canyon Grand Canyon National Park is one of the United States' oldest national parks and is located in Arizona. Lake Mead National Recreation Area is located in southern Nevada and northwestern Arizona.
Arctomecon merriamii is similar to A. californica, but has white flowers. It occurs in the Mojave west and north of Las Vegas, as far as Death Valley. Death Valley is the lowest driest and hottest Valley in the United States.
Arctomecon humilis also has white flowers, but is much smaller and shorter, and only sparsely hirsute. It occurs only a small area near St. George, Utah. St George is a city located in the southwestern part of the U
References
- Christopher Grey-Wilson, Poppies (Portland: Timber Press, 2000) ISBN 0-88192-503-9 pp. 226-229
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