Arabis serrata

Family	Brassicaceae
Scientific name	Arabis serrata Franchet & Savatier
Synonyms	(Synonyms described in Flora of China) [Arabis alpina L. var. formosana Masamune ex S. F. Huang; Arabis amplexicaulis Edgeworth var. japonica H. Boissieu; Arabis amplexicaulis Edgeworth var. serrata (Franchet & Savatier) Makino; Arabis boissieuana Nakai; Arabis boissieuana Nakai var. glauca (H. Boissieu) Koidzumi; Arabis boissieuana Nakai var. sikokiana Nakai; Arabis fauriei H. Boissieu, not H. Léveillé; Arabis fauriei sensu H. Boissieu var. grandiflora Nakai; Arabis formosana (Masamune ex S. F. Huang) T. S. Liu & S. S. Ying; Arabis glauca H. Boissieu; Arabis glauca H. Boissieu subsp. pseudoauriculata (H. Boissieu) Voroschilov; Arabis hallaisanensis Nakai; Arabis iwatensis Makino; Arabis kishidae Nakai; Arabis pseudoauriculata H. Boissieu; Arabis serrata Franchet & Savatier var. glabrescens Ohwi; Arabis serrata Franchet & Savatier var. glauca (H. Boissieu) Ohwi; Arabis serrata Franchet & Savatier var. platycarpa Ohwi; Arabis serrata Franchet & Savatier var. japonica (H. Boissieu) Ohwi; Arabis serrata Franchet & Savatier var. sikokiana (Nakai) Ohwi; Arabis sikokiana (Nakai) Honda]
Common name	(Japanese common name) fuji hata-zao (フジハタザオ, 富士旗竿 [meaning: Mt. Fuji's flag pole])
	(English common name) none
Distribution	(Japan) Honshu (only Mt. Fuji)
	(Other nations) none
Habitat	Alpine or subalpine rocks
Chromosomal number	2n=32
Description	Plants electing 10-25cm tall. Leaves 2-7cm long. Flowers white 1.5-2cm across, flowering in July to August. Perennial plants.
Reference	Arabis serrata Franchet & Savatier
Note	Authors of Flora of China state "Arabis serrata is highly variable in basal leaf indumentum, margin, and petiole length. Of the many taxa synonymized above, none seems to merit recognition. In fact, A. formosana is indistinguishable from some of the Japanese forms of A. serrata.". However, most Japanese authors believe that such mior variations in leaves, margin and petilole are all very important points. I think that A. serrata in Mt. Fuji has obvious characteristics and an unique native species of Japan. Authors of Flora of China describe that A serrata is 12-35 cm tall and can be found in China, Taian, Korea and Japan. However A serrata is a relatively small mountane wild plants and can be found only in Mt. Fuji of Japan. Presumably there is a kind of misidentification in Flora of China.

April 2007 at Tsukuba Botanical Garden	April 2007 at Tsukuba Botanical Garden

April 2007 at Tsukuba Botanical Garden	April 2007 at Tsukuba Botanical Garden	April 2007 at Tsukuba Botanical Garden