Patterns in Conifer Growth

Annual growth is reflected by patterns seen in the branches of conifer trees. Robert Knudson, a local biologist, points this out in a terrific YouTube video about our Northern Minnesota conifers. Pictures in this post illustrate two of the patterns featured in his presentation. Annual growth of Balsam Fir The pictures above show buds of …

Fall Colors; Why?

Interplay among three pigments is responsible for the changing colors seen in plant leaves each fall. Chlorophyll — this is the key green compound that enables the plant to convert sunlight and CO2 to sugar throughout the summer. Carotenoid — a yellow/orange compound that is present in the leaf throughout the year. When green chlorophyll …

Fungus on Trees

Shelf-like fungal growths on trees are known as conks Fungus identification is best left to experts, but I think the “conks” shown in the pictures above are the species Phellinus Tremulae. The photograph in the upper right is a close-up of the porous bottom-side of one of them. So far I have seen these growths …

Heartland Trail in September

Photographs in this posting show off fall scenery near Nevis, Minnesota along the Heartland Trail, a Rails-to-Trails trail for biking/running/walking that extends from Park Rapids to Cass Lake (49 miles). Also in our area is the Paul Bunyan Trail, a Rails-to-Trails route between Crow Wing State Park and Bemidji (115 miles). The Rails-to-Trails Conservancy (RTC) …

September Scenery

We took a walk along the Paul Bunyan Trail, north of Hackensack MN, on a gorgeous day in mid September. This post simply intends to share some of the views from along the way. Sumac turning red among paper birch Virginia Creeper climbing in a Green Ash Virginia creeper and its similar species Woodbine are …

Spruce, Fir, and Tamarack

White Spruce (Picea glauca) Two species of spruce are native to Minnesota, the White Spruce and Black Spruce. The spruce in our area are predominantly White Spruce, Black Spruce are small and found in swampy areas. The White Spruce ranges across Canada and extends south only into the northernmost United States. It is the tree …

Pines

Pine trees are distinguished from other conifers, like spruce and fir, by having needles attached to their branches in clusters of two or five. Needles of spruce and fir trees are attached singly to the branches. As shown in a previous post, Red Pines have long needles in clusters of two, Jack Pine needles are …

Fall Colors in August

Surprisingly to me, there already are hints of fall colors here — prior to September! This post features pictures of these early signs of season change. The conditions here in late August are nearly perfect — crisp days with nearly no bugs. Sugar Maple — August 22 Viburnum; Guelder-rose — August 28 Amur Maple — …

Conifers

Red Pine (Norway Pine) Minnesota State Tree Eastern White Pine Jack Pine Balsam Fir White Spruce Black Spruce Tamarack (Eastern or American Larch) Eastern Red Cedar (juniper) Northern White Cedar Eastern Hemlock Bold type marks the seven trees in the list that I’ve identified in our area (so far); the three pines, a spruce, the …