Synonyms for Sheep Plant (same or very similar meaning)
WordNet sense 1 (perennial prostrate mat-forming herb with hoary woolly foliage):
vegetable sheep, Raoulia australis, Raoulia lutescensWordNet sense 2 (cushion-forming New Zealand herb having leaves densely covered with tawny hairs):
Haastia pulvinarisFrom the ODE community, based on WordNetadd/edit