EVERGREEN

Plant Encyclopedia

Taxus cuspidata var. cuspidata

Taxus cuspidata var. cuspidata (Japanese yew, "Ichii")

Japanese name: イチイ (一位)
Scientific name: Taxus cuspidata var. cuspidata

Taxus cuspidata var. cuspidata

[Overview]
An evergreen coniferous tree 20 m tall.
The bark is reddish brown and splits lengthwise.
The branches and leaves are dense.
The leaves are alternate simple leaves, linear, 0.5–2 cm long, with two pale green stomatal bands on the underside.
It is dioecious, and both male and female flowers are borne singly in the leaf axils.
The seeds are spherical and ripen to greenish brown, enclosed in a fleshy aril that turns red when ripe.
The aril is sweet and edible, but the seed inside is poisonous, so caution is needed.

[Uses]
Although poisonous, the leaves and seeds were used as folk medicine.
The wood is dense, hard and lustrous, and is made into alcove pillars, furniture, crafts and the like.

[Cultivation]
Propagate from seed, by cuttings, or by layering.
When growing from seed, collect seeds whose arils have ripened red, then wash off the aril and sow immediately, or bury the seeds in moistened vermiculite or similar so they do not dry out and store them in a cool, dark place; take them out the following spring and wash them thoroughly once more before sowing.
It dislikes being transplanted somewhat.
It prefers fertile, well-drained soil in sun to partial shade.
It tolerates shade.
Avoid places exposed to strong afternoon sun.
For potted plants, and for plants in the ground less than 2 years after planting, water thoroughly when the soil surface dries; for established plants in the ground, rainfall is sufficient.
Apply organic fertilizer around the plant as fertilizer in winter.
Pests and diseases include sooty mold, scarab beetles, bagworms (Minoga) and scale insects.

[Notes]
The Japanese name "Ichii" is said to come from the fact that, in the past, the wood was used to make the shaku (ceremonial tablet) of high-ranking officials.

Details

Names
English: Japanese yew, spreading yew
Japanese: イチイ(一位)、オンコ、アララギ
Life form
Tree
Evergreen / deciduous
Evergreen
Leaf type
Needle-leaved
Habit
Terrestrial
Planting (or sowing) season
March, April, May, June, July, September, October
Flowering season
March, April
Fruiting season
October
Distribution or origin
Japan (Hokkaido, Honshu, Shikoku, Kyushu), Korea, northeastern China, eastern Siberia, Sakhalin, Kuril Islands (central part and south), Shikotan Island
Growth form
Upright
Height
15000–20000 mm
Leaf shape
Linear
Leaf arrangement
Alternate
Inflorescence
Solitary
Fruit color
Red
Leaf color
Green
Availability of seeds and plants
Low
Form sold
Seedlings
Propagation
Seed, Cuttings
Sun exposure
Full sun, Partial shade
Water needs
Moderate
Soil needs
Required
Tolerance
Cold tolerance, Shade tolerance
Suitable uses
Bonsai, Hedge, Topiary, Parks and gardens, Street trees
Hardiness zone
5a–9a
Diseases
Sooty mold
Pests
Scarab beetles, Bagworms (Minoga), Scale insects
Uses
Medicinal, Other crafts
Japan Flower Trade Code
68632

Translated from our Japanese encyclopedia. If anything differs, the Japanese page is correct.

Sponsored