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(First upload on May 31 2018. Last on November 30 2018) [ 日本語 | English ]

⇒ Engler's syllabus (エングラー体系)

Nyctaginaceae Juss. (オシロイバナ, four o'clock) in Japan

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290 species in around 33 genera Distribution: mainly in tropical and subtropical regions Fruit: anthocarp Pollen grain: extremely large (> 100 μm)

Bougainvillea Comm. ex Juss. (イカダカズラ) Mirabilis L. (オシロイバナ) Pisonia L. (ウドノキ)

Mirabilis L. (オシロイバナ, four-o'clocks) in Japan

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About 60 species in the world M. jalapa L. (オシロイバナ)

M. longifolia L. (ナガバナオシロイバナ)

M. nyctaginea (Michx.) MacMill. (イヌオシロイバナ)

Mirabilis jalapa in Japan

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Oshiroibana (オシロイバナ, 白粉花/白粧花), marvel of Peru or four o'clock flower Lifeform: annual or perennial forb Distribution: tropical South America naturalized throughout tropical and warm-temperate regions introduced to Japan in early Edo Era Habitat: under full sun

Sepal: red, yellow, white, etc. (no petals) Use: ornamental, medicine f. dichlamydomorpha (Makino) Hiyama (フタエオシロイバナ)

1 2 3
4 5
[1] in Oi Pier Seaside Park, Tokyo, on December 26 2015. [2/3] in the hometown forest of Haramachida, Tokyo, on December 10 2017. [4/5] on a bank along Sophia Street, Chiyoda Ward, Tokyo, on October 19 2018.