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General:
Sagebrush (Artemisia spp.) is a stout, dense, upright shrub with blue-gray leaves and 3-6
inch flower stalks that stand up above the foliage, even after the
flowers are gone. The aromatic leaves are narrow and wedge-shaped with
notches in the blunt tip, and usually densely hairy. Keeps leaves all
winter. Individually, the flowers are small, but together they form
several blue spikes of color above the plant during spring. There are
about 300 species in the genus Artemisia, but fortunately, only 21-31
species, depending on how you count, occur in Nevada.
Sagebrush usually is an uncommon component of higher
elevation
slopes in the mountains around Las Vegas, but it the dominant species
north of Las Vegas, covering thousands of square miles of mountains and
valleys in the Great Basin Desert. Around Las Vegas, sagebrush occurs in higher-elevations canyons, bajadas, and mountain slopes from
the Upper Sonoran (Mojave
Desert Scrub and Pinyon-Juniper
Woodland), Transition (Yellow
Pine Forest), Canadian (Pine-Fir
Forest), and Hudsonian (Bristlecone Forest)
life zones. In some places in the Spring
Mountains, sagebrush forms prairies where trees are absent. |

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Family:
Sunflower (Compositae).
Other names:
Plant Form:
dense, upright shrub.
Height: 6
inches to 6 feet, depending on species; usually 1-3 feet around Las
Vegas.
Bark:
gray-brown, shaggy.
Stems:
stout and woody; grows from a woody base. |

Flower stalks during winter.
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Leaves:
Blue-gray, wedge-shaped to about 1-inch long by 1/4
inch wide), usually two notches in the blunt tip, aromatic, usually
densely hairy.
Flowers:
Tiny, blue flowers on a branching spike (panicle). Individual flowers
are obscure, but the mass appears blue.
Seeds: Tiny
(< 2 mm), oblong.
Habitat:
Around Las Vegas, dry, well-drained sandy, gravelly,
and rocky soils on upper bajadas, ridges, canyon, and mountain slopes.
Elevation:
4,500 to 10,000 feet.
Distribution:
Various species occur throughout the northern hemisphere.
Comments: |
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