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Cutleaf Japanese Maple 'Ornatum': Classic Dissectum with Many Names

Overview

Acer palmatum 'Ornatum' is a classic cutleaf (dissectum) Japanese maple with a long history and many synonyms, including Amatum, Dissectum Atropurpureum, Dissectum Ornatum, Ornatum Purpureum, and Spiderleaf.

Key Characteristics

  • Family: Sapindaceae
  • Genus: Acer
  • Species: palmatum
  • Cultivar: Ornatum
  • Group: Dissectum
  • Synonyms: Amatum, Dissectum Atropurpureum, Dissectum Ornatum, Ornatum Purpureum, Spiderleaf
  • Synonym: Acer palmatum var. dissectum

Description

This cultivar forms a small, mounding, weeping tree with deeply dissected, purple-red leaves that hold color well into summer, turning bright red in fall. The "spiderleaf" name refers to the extremely narrow leaf segments. It is one of the oldest and most reliable dissectums.

Landscape Value

A staple in Japanese gardens. The purple-red foliage provides season-long contrast. Grows 6–10 feet tall and wide. Very cold hardy. Excellent for containers, courtyards, or as a specimen.

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