*Sorbus alnifolia

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*Sorbus alnifolia
KOREAN MOUNTAIN-ASH

Rosaceae
Asia

Location: map coordinates E-40 (north of Administration Building; several trees of this species in circle around flagpoles), N 39°11'13'' W 75°32'19''

Planting history: possibly planted with new Administration Building ca 2004.

Description:
  • medium-sized deciduous tree
  • etymology: Sorbus Latin name for service tree; alnifolia = alder-(Alnus) leaved
  • also known as Korean whitebeam, or alder-leafed whitebeam
  • leaves toothed (serrate); simple, unlike other mountain-ashes (Sorbus) which have compound leaves; orangish-red in autumn
  • flowers white, 5-petaled, in flat-topped clusters (corymbs), in May
  • fruit red, showy, small pome (apple-like fruit)
  • doesn’t grow well south of USDA Zone 7, because of hot /humid summers. Common name “mountain ash” comes from its preferred cool mountain habitats

*Non-native species (not native to Delaware)

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