[['[TABLECONTEXT]', '[TITLE]', 'Pinus ponderosa'], ['Needle thickness', 'CENTRAL_HIGH_PLAINS_(READIANA)', '49.7±0.61, N=5'], ['[TABLECONTEXT]', 'MEASUREMENTS', 'Needle thickness'], ['Needle thickness', 'COLUMBIA_(PONDEROSA)', '47.8±0.51, N=48']]
The Columbia(ponderosa) subspecies of Pinus Ponderosa has needle thickness 47.8±0.51, N=48 whereas the Central High Plains(readiana) measured 49.7±0.61, N=5.