Life, perhaps on a world far different than the one we know. The parent star is a blue supergiant, and this world orbits nearly a lightyear away. Its companion is a red dwarf. Because of the intense ultraviolet radiation, The foliage takes on a red color to better absorb it and is able to withstand the damaging effects it would have on Earthly life. Because of the planet's hydrogen-rich atmosphere content, it appears orangish. Of course this is sheer speculation.
