Distinguished by its globose seed structure, this coniferous evergreen form offers a fascinating variation within its species. It occurs naturally in regions of East Asia, growing slowly in temperate forest habitats. The plant maintains a dense, dark green canopy throughout the year.
While sharing many characteristics with the typical species, this particular form is recognized primarily by its seed shape. Collectors and botanists study it to understand the morphological diversity of ancient gymnosperm lineages.
The defining feature of this form is the spherical shape of its mature seeds, which contrast with the typical elongated obovoid seeds of the species. The seeds are enclosed in a green, fleshy aril that turns purplish-brown upon reaching maturity.
Its vegetative structures follow the general pattern of the species but exhibit specific needle density. The foliage remains functional and green for several years before shedding.
Spring (flowering), autumn of the second year (seed maturity)
Due to the rarity of this form, its primary value lies in scientific research and botanical collections. The high-quality wood of the species is historically renowned for crafting traditional game boards, but this specific variety is preserved for biodiversity.
The seeds of the parent species yield a premium oil used in cooking and traditional woodworking finishes. This form represents an important genetic resource for breeding programs and conservation collections.
The Japanese name for this form is Marumigaya, which translates to round-seeded nutmeg-yew. The typical species is so highly valued for Go boards that top-tier boards are seasoned for decades before being carved.
Ancient specimens of these gymnosperms are considered living relics because their ancestors dates back to the Triassic period.
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