nimet breadcrumb-navigoinnissa
Palatability/nutritional value:
Horsebrushes
are unpalatable except early in the spring, when browsers may consume young
shoots and buds [20]. Nuttall's horsebrush is not a toxic
horsebrush species, but livestock and wildlife seldom consume it [12,33,36,38]. In
Utah its palatability is rated poor for livestock, large game animals, upland
game birds, waterfowl, and small nongame birds, and fair for small mammals [8].
Cover value:
Cover value of Nuttall's horsebrush is rated poor for pronghorn, elk, mule deer, and waterfowl, and fair
for small mammals, upland game birds, and small nongame birds of Utah [8].
Nuttall's horsebrush regenerates from seed and by sprouting
[3,4,26,37,40,42,45].
Information on breeding, seed production and viability, and seed banking is
scant for Nuttall's and other horsebrushes. Further research is needed on the
reproductive ecology of this genus.
Pollination:
Horsebrushes are pollinated by insect generalists including flies, moths, bees, and beetles
[23].
Seed dispersal:
Horsebrush seeds are wind dispersed [47]. The
hairs on horsebrush achenes and pappi aid dispersal [13].
Seedling establishment/growth:
Seedling establishment is rare in horsebrushes, probably due to harsh environments
[37].
Asexual regeneration:
Nuttall's horsebrush sprouts from the root
crown after top-kill [3,26,37,45].
Tetradymia nuttallii is a species of flowering plant in the aster family known by the common name Nuttall's horsebrush.[1] It is native to the western United States, where it occurs in Nevada, Utah, Wyoming, and Colorado.[2]
This shrub or subshrub has a stiff, branching network of stems reaching up to 1.2 meters in maximum height. Like other Tetradymia, this species has two types of leaves. The larger, primary leaves become spines which may be over 2 centimeters in length. The inflorescence is made up of a few flower heads, each of which contains four bright yellow flowers. The fruit is well over a centimeter long, including its large pappus.[2][3] The leaves fall off the plant during dry times. Also when it is dry the plant may not flower, or if it does, it does not produce fruits.[2]
This plant grows in habitat dominated by shadscale and black greasewood, as well as sagebrush and pinyon-juniper woodland. It grows in dry and sometimes rocky soils.[2]
Tetradymia nuttallii is a species of flowering plant in the aster family known by the common name Nuttall's horsebrush. It is native to the western United States, where it occurs in Nevada, Utah, Wyoming, and Colorado.
This shrub or subshrub has a stiff, branching network of stems reaching up to 1.2 meters in maximum height. Like other Tetradymia, this species has two types of leaves. The larger, primary leaves become spines which may be over 2 centimeters in length. The inflorescence is made up of a few flower heads, each of which contains four bright yellow flowers. The fruit is well over a centimeter long, including its large pappus. The leaves fall off the plant during dry times. Also when it is dry the plant may not flower, or if it does, it does not produce fruits.
This plant grows in habitat dominated by shadscale and black greasewood, as well as sagebrush and pinyon-juniper woodland. It grows in dry and sometimes rocky soils.
Tetradymia nuttallii là một loài thực vật có hoa trong họ Cúc. Loài này được Torr. & A.Gray miêu tả khoa học đầu tiên năm 1843.[1]
Tetradymia nuttallii là một loài thực vật có hoa trong họ Cúc. Loài này được Torr. & A.Gray miêu tả khoa học đầu tiên năm 1843.
