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Shrub Walk Key
LHAP 304-61-40683 (FA25) - Sustainable Hort Practices/Introduced Woody/Shrub Walk Key.docx
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Shrub Walk Key:
Wayfaring Tree - Viburnum lantana
Dense, somewhat rounded, LARGE shrub
Opposite attachment
White-ish tinge to branches (very short hairs that rub off)
Big round white flower bud, exposed (no scales)
Exposed, longer leaf bud
Shriveled purple fruit in cluster persisting on the shrub
Reddish/purple fall colour persistent leaves (especially on suckers) - acute tips, wider than they are long with hairs.
Suckers
Winged Burning Bush
Corky Ridges (wings) on the stems
Smallish - Medium size
Red Fall colour (BURNING bush)
Arils
Lilac (probably Common Lilac)
Gray mature bark
LARGE size
Dense suckering form
Brown dried fruit panicles.
Opposite attachment
Nannyberry
LARGE size
Dried berries
Covered buds - dark brown
Flower bud “beaked” - round bulb with pointy tip
Opposite attachment
Honeysuckle
Shreddy bark at the base / old bark
VERY frothy, fine textured tips
Stacked buds
Form is relatively large and rounded
Forsythia
Actual honey brown bark (I know, I use that term a lot, but note how yellowy the bark is on this one vs just a regular light brown)
Fine tipped / fine texture
Tight pressed buds
Exfoliating “sunburn” skin
Pygmy Caragana
Seed pods!
Very pokey spines (only really on the pygmy - other caraganas just have the mucronate tip on leaves)
Olive green mature bark
Dense form, somewhat arching stems
Small size (pygmy only, other forms of caragana tend to be much larger and often suckering).
Double Flowering Plum
Large, rounded size, relatively fine textured still, though.
Dark brown wood
Buds that look like little flowers.
Elder
Striped / soft wood (stinks when cut)
Looks like it may have died back / regrown from base (especially the more fancy species)
May see dried leaves on it
Should be Med-Large to Large in size depending on hardiness.
May see berries depending on species.
Barberry
Should be a very petite / small shrub
Arching stems
May have small shriveled fruit on it
Usually colourful plant (purple / red tones popular)
Mean spines on it - but long and hidden.
Dwarf Korean Lilac
VERY densely packed branches
Opposite attachment. But VERY fine textured
Hopefully has the dried seeds on it
Rounded form - Med to Med Large.
Common Caragana
Olive green mature bark
Seed Pods
Persistent pod stems
Often suckering
Turkestan Burning Bush
Wiry and Thicket forming
Small, fine textured leaves with entire margins, often persist through winter, may be red toned.
Arils
Cotoneaster
Look for the fruit, persisting through winter
Fairly coarse textured
Arching stems and Med Large - Large size if it hasn’t been pruned
Ninebark
Quite fine textured for being Med - Med-Large size
Often has long crazy stems with dried leaves still clinging.
May have fruits present - dried little capsule like cymes.
Exfoliating wood.
Tree Walk Key:
American Elm
Very Large
Vase Shaped
Dominant alternate attachment even in twiglets
Graceful / lacey branching with fine textured twigs coming even from the trunk.
Green Ash
Coarse Textured, Oval form
Grey bark with vertical lines
Opposite attachment
Might have single wing samaras
Japanese Tree Lilac
Smooth grey mature bark
Dried fruit capsules
Opposite attachment - often interesting structure to the tree
Usually relatively coarse textured / thick twigged
Med - small tree size and often rounded form.
Willow
Big trees - look for shed branches on the ground!
Twisted trunk wood
Very slender twigs with pointy buds.
Ohio Buckeye
Coarse textured tree - very chunky looking
Grey bark is smoothish, and yet also flakey. (Not smooth and hard like a lilac or a chokecherry).
Look for little dead skull fruits
Low headed tree, if they’re big, they’re also usually wide.
Bur Oak
Corky ridges on the stems (“Bur”ly)
Possibly acorns or dried lobed leaves on the ground
Mature bark is also very corky
Knobby / coarse textured tree
Oval in form.
Amur Maple
VERY fine textured, small tree
Red twigs
Two-winged samaras
Big Maple (I think Red)
VERY smooth grey bark
Usually large trees
Maple-like leaves seen around them?
Linden
Strong central leader
Smooth hard mature bark, rich brown new wood
Little light coloured ball buds stacked 2 dimensionally
Distinct little fruit clusters with papery bract attached.
Butternut
Sid the sloth leaf scars
Very coarse textured, chunky look to it
Walnutty smell to the wood.
Evergreen Walk Key:
Swiss Stone Pine
Long, graceful needles in bundles of 5 with “teeth”
Low branching, narrower form (like a pine cone)
Light coloured, smooth mature wood
Absence of needle bundle sheath
Bristlecone Pine
Short needles in dense clusters
Cones are bristle-y and often have resin
White resin like residue on needles (looks like a bug)
Irregular form, usually.
Scot’s (or Scotch) Pine
Scotch coloured orange bark (look at the upper part)
Open form (drops its needles early)
Small cones.
Limber Pine (Second Year Tree - compare to Swiss Stone)
Long limbs, “limber” (think wind)
Big resinous cones
Needles in 5’s
Irregular form, usually.
Mugo Pine / Mountain Pine
2 needle pine
Small cones
Brown male flowers persistent on the branch
Russian Cypress
Lacy, softer foliage
Prostrate, downward bending branches
purple/brown Fall colour
NO CONES
Cedar
Fan shaped branches
Flatter, 2 dimensional scale like twigs
Cones