Dwarf Japanese plum yew
Cephalotaxus harringtonia (Knight ex Forbes) K. Koch var. nana (Nakai) Rehder [Cephalotaxaceae]
Hai-inugaya (ハイイヌガヤ, 這犬榧)
Life form: evergreen needle-leaved shrub < 2 m high
Distribution: Mainly in Japan Sea side (Honshu - Shikoku) - western Hokkaido
Habitat: deciduous-forest floor
Cephalotaxaceae in Japan
One species in one genus (Cephalotaxus Sieb. et. Zucc.) is distributed in Japan.
Etymology
cephalo (head) + taxus (yew)
Endemic to eastern Asia
C. harringtonia (Knight) K. Koch (イヌガヤ, s.l.)
- var. drupacea (Sieb. et Zucc. ex Miq.) Koidz. (イヌガヤ, s.s.): not in Hokkaido
- var. nana (Nakai) Rehd. (ハイイヌガヤ)
- f. fastigiata (Carr.) Rehd. (チョウセンマキ): gardening
Cephalotaxus harringtonia var. nana in Hokkaido
[Left] dominant on the forest floor. [Center] close-up of bush. [Right] close-up of sampling. On the north slope of Mount Sankaku, Sapporo City, On April 17 2010.
References
- Engler's syllabus (エングラー体系)
- Mount Moiwa (藻岩山)