Arcterica nana syn. Pieris nana

 A very popular plant among those in the know! The only species in the genus Arcterica, but now probably more correctly known as a Pieris which is less  of a curiosity.

Rice Grain Cherry flower. A dainty Iittle, evergreen Japanese shrublet, also from the Kuril Islands and Kamchatka. Spreading by stolons, with short racemes carrying little white "urns” in whorls of up to three fragrant, white flowers 3-4mm long and much constricted at the mouth. The leaves are like beetle wing cases, long, thin and curved according to Hokonui Alpines, the source of this plant. High alpine boulders and cliffs. Likes plenty of filtered light and an acid soil, preferably not hot sun in summer. 5cm tall by 20-30cm across.  Whorls of up to three fragrant, white flowers 3-4mm long and much constricted at the mouth. Sepals five, lanceolate to ovate, up to 5mm long, red or green. High alpine boulders and cliffs.

Alpsdake, CC BY-SA 3.0 <https://creativecommons.org/licenses/by-sa/3.0>, via Wikimedia Commons