Solve these clues to fill the grid.
- A vast treeless plain in the Arctic regions where the subsoil is permanently frozen
- 4 Across
- Green plant covering lawns (plural)
- 5 Across
- Any plant of the genus Pulsatilla
- 7 Across
- Low in temperature; also a sniffly illness
- 9 Across
- Tiny leafy-stemmed flowerless plants (plural)
- 10 Across
- A written work that has been recast in a new form (plural)
- 13 Across
- Whether it's rainy, sunny or windy outside
- 14 Across
- Relating to or characteristic of alps
- 15 Across
- The painted structures of a stage set that are intended to suggest a particular locale
- 16 Across
- White ___ of Arctic regions
- 1 Down
- Evergreen shrub of eastern North America having white or creamy bell-shaped flowers and dark green
- 2 Down
- Large shaggy-coated bovid mammal of Canada and Greenland
- 3 Down
- Coins collectively (plural)
- 6 Down
- The weather in some location averaged over some long period of time
- 8 Down
- A living organism lacking the power of locomotion
- 11 Down
- All living things that are undomesticated
- 12 Down