例句與造句

1. Hybrids also occur with American Dwarf Birch, named " Betula ?uliginosa ".
2. Three varieties are recognised and it hybridises with the silver and dwarf birches.
3. American dwarf birch is a multi-stemmed shrub typically growing to tall, often forming dense thickets.
4. The deciduous shrubs below the treeline were identified as dwarf birch, willow and green alder.
5. Dwarf birch and sedges cover large, wet areas with jack pine occurring on the sandy ridges.
6. It's difficult to find dwarf birch in a sentence. 用dwarf birch造句挺難的
7. Above 1, 800 meters is shrub land of Siberian dwarf pine ( Pinus pumila, dwarf birch ( Juniperus pseudosibirica.
8. In Iceland, dwarf birch and downy birch sometimes hybridise, the resulting plants being triploid ( with three sets of chromosomes ).
9. The Siberian dwarf pine " ( Pinus pumila ) " and the dwarf birch " Betula middendorffii " grow on the island.
10. In certain regions-such as Nunavut, the Baffin Uplands and the Lancaster Plateaus-dwarf birch, Arctic willow, northern Labrador tea, Dryas spp ., and Vaccinium ssp.
11. In northern Greenland, the ground is covered with a carpet of mosses and low-lying shrubs such as dwarf birch and willow, may grow several feet high.
12. These will often intermingle with dwarf birches ( Betula nana ), sometimes forming dense bushes The European goldenrod ( Solidago virgaurea ) and blueberries are also found at this level.
13. To 17000 BC the area was finally free of ice, and soon first pioneer plants settled, such as dwarf birch and mountain avens on, typically for a post-glacial tundra landscape.
14. It contains areas of ancient woodland, including one of Scotland s best areas of juniper as well as significant areas of dwarf birch; however, much of the estate is open treeless ground.
15. The tundra, a carpet of blueberries, crowberries, dwarf birches and wildflowers over a layer of permafrost, is spongy and difficult to walk on even when rain has not dotted it with knee-deep puddles.
16. In more northerly locations, downy birch can also be confused with the cytologically, silver birch and dwarf birch being diploid ( with two sets of chromosomes ), whereas downy birch is tetraploid ( with four sets of chromosomes ).
更多例句：  下一頁