Species in the genus Arabis:

Arabis serrata var. siikokiana / Shikokuhatazao シコクハタザオ

Arabis serrata var. siikokiana is a perennial herb found in moist, rocky, graveled hilly districts. It has moderate branches and grows to 15-50cm in height. Radical leaves are narrowly obovate and pinnate, 1.5-3cm long, with coarse serrations on the margins. On-stem leaves are oblong to oval-oblong, 1.5-3.5cm, and bases become sagittate to embrace the stems, with coarse serrations on margins. The leaf surfaces and the backsides also have stellate and branched hairs, mingling some simple ones. Stems apexes deliver racemose inflorescences with 4-petaled white flowers, petals measuring 6-10cm in size. Bloom time: April-May.