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(First upload on January 9 2013. Last on December 17 2013) [ 日本語 | English ]

Oxalis L. (カタバミ) Ottachi-katabami (オッタチカタバミ, おっ立ち片喰), slender yellow woodsorrel Lifeform: weedy perennial forb Distribution: native to north America (exotic to Japan) Habitat: disturbed sites, such as roadsides, railroads, gravel-bars, wasteground, lawns, and gardens Leaf: sour (oxalic acid)

Stem/branch: fairly dense, short, appressed hairs, becoming less hairy with age Fruit: green, banana-shaped capsule Seed dispersal: self Synonyms: Oxalis prostrata Haw. Oxalis rupestris Raf. Oxalis stricta auct. non L. ⇒ exotic pink-flowered Oxalis

Oxalis dillenii in Hokkaido

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1 2 3
4 5
[1-3] at N10/W4, North Ward, Sapporo, on July 4 2012. [4/5] near a parking lot in Big Site, Tokyo, on May 12 2013. Record: in a wasteland on N21/E1, East Wrad, Sapporo, on May 26 2018.