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(First upload on December 8 2008. Last on December 17 2017) [ 日本語 | English ]

Hosta rectifolia Nakai






Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily

Gardening plants [ H. sieboldiana トウギボウシ | H. undulata スジギボウシ ]

Hosta Tratt. (ギボウシ)
Tachigiboushi (タチギボウシ, 立擬宝珠), erect hostas * (* tentative)
Lifeform: perennial forb
Distribution: Far East - northern Japan
Habitat: wetlands (湿原) such as lakeside, meadow and moor
Chromosome number: 2n = 60
Use: young shoot → edible (sometimes misidentifed to Veratrum album)
Synonyms:

- var. sachalinensis (Koidz.) F. Maek. (discarded)

- var. australis F. Maek. ex W. G.Schmid (discarded)
Hosta sieboldii (Paxton) J. W. Ingram var. rectifolia (Nakai) H. Hara, often adopted, sometimes used (e.g., Takita 2001)

f. atropurpurea (Nakai) (シロバナギボウシ), dark violet flower, small number of flowers, sometimes used
Cultivars
Kabitan (カビタンギボウシ), Kifukurin (キフクリンギボウシ), Mediopicta (キスジギボウシ), Subchrocea (シロカビタンギボウシ)
索引

Hosta rectifolia in Hokkaido


Sarobetsu Mire

Hosta1 Hosta2 Hosta3 Hosta4
[1] in Shimo-Sarobetsu mire (a part of Sarobetsu mire) on August 20 1989. [2/3] in a post-mined peatland on July 23 2014. [4] in Shizukari wetland, southern Hokkaido, on June 15 2015.

Hosta5 Hosta6
[5] in Tsukiura Forest Park faced to Toya Lake on September 15 2015. [6] in Shizukari wetland, southern Hokkaido, on July 7 2017.

Hosta cultivars used for gardening


H. sieboldiana (Lodd.) Engl.
Tougiboushi (トウギボウシ, 唐擬宝珠)
Distribution: Japan
Habitat: meadows
var. hypophylla F. Meak (ハガクレギボウシ)
var. fortunei (Baker ) Aschers. et Graebn. (レンゲギボウシ)

Hosta1 Hosta2 Hosta3
[1-3] at the backyard of the Mimatsu Masao Memorial Hall on the foot of Mount Usu on July 24 2017.
Hosta4 Hosta5 Hosta6
[4-6] cv. thunderbolt, at a small garden of a building floor, N13/W2, North Ward, Sapporo, on July 18 2014.


Hosta undulata (Otto et Dietr. ex Kunth) L. H. Bailey

Sujigiboushi (スジギボウシ)
var. erromenta (Stearn) F. Maek (オハツキギボウシ)

Hosta1 Hosta2 Hosta3
[1-3] cv. variegata, ditto.

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