October Color Appears at the Washington Park Arboretum (Part II)

Selected cuttings from the Washington Park Arboretum (October 19, 2015 - November 1, 2015)
Selected cuttings from the Washington Park Arboretum (October 19, 2015 – November 1, 2015)

1)  Cupressus (Hesperocyparis) bakeri                               Modoc Cedar

  • A moderately-sized coniferous tree with greyish-green scale-like foliage that is dotted with white resin. It is native to the Siskiyou and Sierra Nevada Mountain ranges. A slow growing tree, usually under 90 feet over many decades.
  • Considered vulnerable to extinction in the wild in the medium term.
  • Located in the Pacific Connections Garden Cascadia Focal Forest above the Chilean Gateway.

2)  Euonymus myrianthus                Evergreen Spindle Tree

  • A member of the same family as burning bush, this large shrub was discovered in western China and introduced into cultivation by famed plantsman, E.H. Wilson.
  • This plant has insignificant flowers in spring and bares conspicuous yellow fruit in fall, which persist well into winter.
  • Located with the Asiatic Maples collection, north of where the upper and lower trails meet.

3)  Notholithocarpus densiflorus var. densiflorus                Tan Oak

  • Native to the mountains from southwestern Oregon through central California.
  • A natural source of tannin, Tan Oak bark was used in the process of tanning leather.
  • This species is particularly susceptible to “sudden oak death” Phytophthora ramorum.
  • Located in Pacific Connections Garden Cascadia Focal Forest above the Chilean Gateway.

4)  Picea breweriana                             Brewer’s Weeping Spruce

  • Native to the Siskiyou Mountains, this large coniferous tree is slow growing and adapted to extreme cold. The tough flexible branches are held horizontally, forming curtains of foliage. The stiff flattened needles are dark green with two white bands of stomata on the undersides.
  • Located in the Pacific Connections Garden Cascadia Entry Garden near Arboretum Drive.

5)  Magnolia grandiflora ‘Monlia’                Southern Magnolia

  • A medium-sized evergreen tree to 50 feet, it has large green leaves with brown indumentum covering the undersides. Large fragrant white flowers in summer are followed by large upright fruit. The species is native to the southeastern United States.
  • Located at the south end of the Graham Visitors Center parking lot.