(First upload on October 24 2008. Last on May 15 2018) [ 日本語 | English ]
Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily
HOME > Plant list (植物リスト) > Droseraceae (モウセンゴケ科) > Drosera anglica
Drosera L. (モウセンゴケ)Nagabanomousengoke (ナガバノモウセンゴケ, 長葉ノ毛氈苔), great sundew, or English sundewLifeform: perennial carnivorous forb (食虫植物) Distribution (map): widespred in circumboreal regions (also reported from Kauai Island, Hawaii, and California) In Japan, this species has been recorded only from Oze (central Honhsu) and Hokkaido (Sarobetsu and Daisetsu) |
Habitat: nutrient-poor, wet, sunny (= non-forested) sites, e.g., bog → wetland (湿原)
Push-out from favorable habitats, because of low-competitive ability (Hoyo & Tsuyuzaki 2014) Synonyms:
Drosera longifolia Drev. et Hayne |
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[1] on June 20 2008. the locality is non-disclosure for saving this species. [2] on May 24 2015, partly D. obovata.
This work is partly supported by Nippon Flower Designers' Association in 2017 and 2018
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[1] pollen grains of D. anglica (plausible) observed under a binocular stereomicroscope. The plant sample was collected a few days bofore taking the photos on July 5 2005. [2] seeds taken by a microscope (VH-5500, KEYENCE/キーエンス) on April 10 2013. Compare to the seeds of D. rotundifolia. |
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= D. anglica × rotundifolia: 2n = 30 Sajibamousengoke (サジバモウセンゴケ, 匙葉毛氈苔) |
establishing with the populations of D. anglica and D. rotundifolia |
Fertility: infertile in nature |
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[1] on May 24 2015. [2/3] on May 22 2016. [4/5] on May 29 2017.