I sometimes grumble about Alamosa's limited tree palette. But, when it comes to identifying local trees in winter, our task is not as challenging as identifying the more than 100 species on Denver's recommended street-tree list.

There are four important clues: branching structure, bark, twigs, and nuts/seeds/fruits.

Take a look at the January 4 Alamosa Trees Column with some added photos.Take a look at a more extended chart with photos: Alamosa Winter Tree Identification.

Left: Siberian Elm - Note zigzag twig structure and alternate buds that are dark and almost spherical.

Middle: Honeylocust - Note spiraling seed pods.

Right: Ash –Note opposite branching structure