HRT 212 Lab Walk 6: Ornamental Trees II Preview

Greater periwinkle

Vinca majorNote opposite leaves. larger than Vinca minor. Smooth leaf margins.This is a variegated form (which is the most common)

Sugar Tyme crabapple

Malus 'Sugar Tyme'Note spur shoots, inbricate buds which lack a fuzzy fringebark plateylots of crabapples which are a late-season food source for birds, usually presnet all winterthis cultivar (and others) tend to be alternate-bearing, meaning heavy fruit every other year

White Ash

Fraxinus americanaNote OPPOSITE branchingbuds look like chocolate chipsleaf scar is a solid U shape

Weeping cherry

Prunus subhirtella 'Pendula'note prominent hortizontal lenticels on barkclusters of shiny buds near tips of branchesthis one is grafted high, which is typical

Black Lace elderberry

Sambucus nigra "Black Lace'note loosely branced habitlike S. Canadensis, stems with prominent lenticels,leaves emerge purple on this cultivar

Prunus 'Okame'

Note shiny bark with prominent lenticelsclusters of flower buds, shiny scalesno spur shoots

Pyrus calleryana 'Red Spire'

Note buds larger than apples, with fringe of white hairs on edges of bud scalesalso has spursvery narrow angles of branch attachment

Prunus avium

Prunus x yedoensis 'Snow Fountains'

Sambucus canadensis

ElderberryNote opposite buds, prominent lenticels, hollow older stems

Crataegus phaenopyrum

Washington HawthornNote long thorns up to 2", very prominent on suckers and watersproutsbuds imbricate, but roundedblack knot canker on branches

Rhus typhina

Staghorn Sumacnote young stems densely covered in short brown fuzz, like antlers with velvet

Rhus glabra

Smooth sumaclooks just like staghorn but lacks fuzz

Amelanchier canadensis

ServiceberryNote pointed buds like artist paintbrushgrey bark with vertical striping

Crataegus viridis 'Winter King'

Rhus aromatica

Note stems have a distinctive aromaflower buds look like litte corn cobs

Chaenomeles speciosa

Flowering quinceNote clusters of flower buds alll along stem on old growth (interior), small thorns

Fraxinus pennsylvanicum

Crataegus punctata