pinus aristata(n = noun.plant) bristlecone pine, rocky mountain bristlecone pine - small slow-growing upland pine of western United States (Rocky Mountains) having dense branches with fissured rust-brown bark and short needles in bunches of 5 and thorn-tipped cone scales; among the oldest living things some over 4500 years old;
is a kind of pine, pine tree, true pine

genus pinus, pinus, pinus albicaulis, pinus attenuata, pinus banksiana, pinus californiarum, pinus cembra, pinus cembroides, pinus contorta, pinus contorta murrayana, pinus densiflora, pinus echinata, pinus edulis, pinus flexilis, pinus glabra, pinus jeffreyi, pinus longaeva, pinus monophylla, pinus monticola, pinus mugo, pinus muricata, pinus nigra, pinus palustris, pinus parryana, pinus pinea, pinus ponderosa, pinus pungens, pinus quadrifolia, pinus radiata, pinus resinosa, pinus rigida, pinus serotina, pinus strobiformis, pinus strobus, pinus sylvestris, pinus taeda, pinus thunbergii, pinus torreyana, pinus virginiana, spinus pinus