tree

Showing 1–12 of 13 results

  • Abies lasiocarpa / subalpine fir

    • narrow, tall, sharply tipped trees
    • cones purple and erect; disintegrate in the fall
    • needles flattened, soft and blunt tipped, brushed upward
    • needles sessile - no petioles or pegs
    • leaf (needle) scars round

  • Acer glabrum / Rocky Mountain maple

    • understory shrub, small tree, multiple stems
    • opposite leaves; red twigs
    • maple-like leaves
    • teeny flowers; double-helicopter fruits

  • Cercocarpus ledifolius / curl-leaf mountain mahogany

  • Picea engelmannii / Engelmann spruce

    • common, especially in mixed conifer forests
    • canopy a narrow spire in young trees, cylindrical in older trees
    • sharp, pointy needles, generally "swept" toward branch tips
    • needles attached to twigs with woody pegs (sterigmata)
    • pendant cones less than 2.5 inches long; thin scales, wavy margins

  • Picea pungens / Colorado blue spruce

    • conical, layered crown; whorled branches
    • frequent epicormic branches; "woolly" look
    • stout, yellow-brown twigs with sterigmata (woody pegs)
    • cones greater than 2.5" long
    • cone scales stiff at base, diamond shaped, not wavy at tips
    • in mixed conifer forests

  • Pinus albicaulis / whitebark pine

    • high altitude - subalpine to alpine; cold, windy sites
    • five needles in tight fasicles
    • brown to purple cones at top of tree; cones don't open
    • scaly grayish bark

  • Pinus contorta / lodgepole pine

    • evergreen conifer
    • needles in groups (fascicles) of 2
    • lopsided cones, (mostly) remain on tree when mature
    • rounded crown; orangey-brown scaly bark

  • Pinus flexilis / limber pine

    • high elevation, rocky or talus, dry, high-stress habitat
    • often - stunted and deformed by wind
    • highly flexible branches
    • needles in bundles (fascicles) of 5
    • often - semi-rotted cones on ground below

  • Populus tremuloides / quaking aspen

    • white barked, often growing in large clones
    • leaves flat with long, flat petiole at 90˚
    • leaves quake in even light breezes
    • twigs and buds reddish, long and pointed
    • catkin flowers in very early spring
    • leaves turn yellow or reddish or orange-ish in fall

  • Prunus virginiana / western chokecherry

    • oval leaves with serrated margins and abrupt taper at tip
    • reddish twigs with prominent lenticels
    • drooping clumps of white flowers w/ yellow centers in spring
    • red to black cherries in fall, up to ½ inch diameter
    • leaves turn orange or yellow in fall

  • Pseudotsuga menziesii / Douglas fir

    • persistent cones with distinctive 3-pronged, "mouse tail", bracts
    • semi-pointy, but not stiff or sharp, single needles
    • needles attached to twigs by petioles (no pegs)
    • oval leaf scars
    • twig buds are pointy, "lustrous" brown

  • Sambucus nigra / common elderberry

    • shrub or small tree blooming in late spring
    • leaves opposite
    • pinnately compound with up to 9 leaflets with serrated edges
    • flowers are white, 5-petaled, in flat-topped clusters of clusters
    • "berries" are red or dark blue/black in August; often drooping when mature

Showing 1–12 of 13 results