russian thistle การใช้

• The tumbleweed of Western lore is, in fact, a Russian thistle.
• Russian thistle, also known as tumbleweed, is the primary plant species along with some grasses.
• And, of course, there's fall, with pollen from ragweed, sage and Russian thistle the common culprits.
• A little nightshade, some Mexican sandbur, some weeds I can't identify _ about everything except Russian thistle.
• But nuisance tumbleweeds, both the somewhat spherical Russian thistle and the Christmas-tree-shaped kochia, absorb uranium at much greater rates.
• I saw sand verbena in the Mojave that was 4 inches tall, completely covered up by four-foot mustard and Russian thistle.
• Most Texas tumbleweeds are really Russian thistle weeds spreading from seeds brought to the United States with shipments in the 1870s.
• Ragweed is the major culprit, but other important sources are sagebrush, redroot pigweed, lamb's quarters, Russian thistle ( tumbleweed ), and English plantain.
• For the past eight years, they've devoted one Sunday each month to rooting out Bermuda grass, Russian thistle and other weeds in state parks between Point Mugu and Malibu Creek.
• On a recent Sunday, the green warriors showed up at Malibu Lagoon State Beach to pluck Russian thistle-- commonly known as tumbleweed-- and pesky Bermuda grass from low-lying sand dunes near the shore.
• That threat has been reduced and the plant's population has improved, but is still threatened by other human activities and an invasive species of tumbleweed, Prickly Russian thistle ( " Kali tragus " ).
• But when the land is disturbed, the native habitat is degraded, inviting such invader species as cheat grass and Russian thistle, also known as tumbleweed, said Larry Cadwell, a staff scientist at the Pacific Northwest National Laboratory.
• After a brief lecture on how to steer the kayaks without slamming into the sandstone walls and prickly Russian thistle on the river's edge, our guides inform us that heavy snow melt has swelled the river to epic proportions.
• Though the US Fish and Wildlife Service has attempted to re-introduce native flora, the Arid Lands Ecology Reserve is currently dominated by non-native species such as cheatgrass, knapweeds, and Russian thistle ( tumbleweed ) which flourished after the 2000 fire.
• The flora has grown to the point where anglers require short ( 20 feet or less ), accurate casts to navigate their flies between brushy corridors . ( Watch for the stinging Russian thistle that has colonized; however scotching the gorge gets, hips waders can be a savior .)
• It doesn't wave softly in the wind like the tall Johnson grass that is blooming alongside it, and it doesn't have pretty little purple flowers like the Russian thistle, which is causing its share of seasonal allergic rhinitis _ although not anywhere near as much as ragweed _ right now.
• In residential areas an example was in South Dakota in the town of Mobridge, where tens of tonnes of large tumbleweeds ( " Russian thistles " ) that had matured in the dry bed of nearby Lake Oahe buried many houses so deeply that mechanical equipment was necessary to remove it, release occupants, and counter the fire hazard.
• In southeastern Idaho, big sagebrush / crested wheatgrass ( " Agropyron cristatum " ) range, most Ord's kangaroo rat captures occurred on disturbed sites or areas of sparse cover : Russian thistle ( " Salsola kali " ), cheatgrass ( " Bromus tectorum " ), and green rabbitbrush ( " Chrysothamnus viscidiflorus " ), followed by disturbed areas seeded to crested wheatgrass, then undisturbed big sagebrush.