At the outset, the listener might think that this album is one of Maria Schneider Orchestra's, but soon there emerges a greater drive, an edginess, and stronger horns. Joel Miller and Chet Doxas are the tenor saxophones and other reeds, but soon the trumpet of Ingrid Jensen is heard. Indeed, while it is Jensen's lyrical trumpet and fluegelhorn why I purchased this album, learning about her sister Christine was a happy surprise, for she is band leader, arranger, and sometime soprano saxophonist. The 19-members of the Christine Jensen Jazz Orchestra, based in Montreal, Canada, perform rich, well thought-out compositions whose titles are of nature, mainly trees; hence the title of the album. The works are composed with sonority, instrumental conversatons, and contrasts. They are full of melody and brightness as well as complex depth, beauty, and a touch of funk; yet, there is some inconsistency and the slower pieces at times seem to lose their way. Guitars, piano, upright bass and drums support a bevy of trumpets and trombones. This big band album has 75 minutes of intelligent jazz arrangements. O Canada!