WordNet sense 1 (Australian tree or shrub with red flowers; often used in Christmas decoration):

Christmas bush, Ceratopetalum gummiferum

WordNet sense 2 (a terrestrial evergreen shrub or small tree of western Australia having brilliant yellow-orange flowers; parasitic on roots of grasses):

flame tree, fire tree, Nuytsia floribunda

WordNet sense 3 (tall timber tree of central and southern Europe having a regular crown and grey bark):

European silver fir, Abies alba

WordNet sense 4 (medium to tall fir of western North America having a conic crown and branches in tiers; leaves smell of orange when crushed):

amabilis fir, white fir, Abies amabilis, Pacific silver fir, red silver fir