Asarum unze

Asarum unze or Unzen kan-aoi (scientific name: Asarum unze), endemic to Japan, is a short perennial herb in the Asarum genus of the family Aristolochiaceae. It grows wild under the forests on Mount Unzen in northern Kyushu. The leaves are broadly ovate with cloud patterns on a green background. It produces dark purple flowers (actually, calyx-colored) with a diameter of about 1.5 cm near the ground in spring to early summer. The sepals are strongly undulate, and there are numerous small white platelets around the mouth ring at the tip of the sepal tube.

Common name: Asarum unze, scientific name: Asarum unze, aka:Unzenkan-aoi, Height: 10-20 cm, Leaf color: green with cloud pattern, Leaf shape: broadly ovate, Leaf length: 5-9 cm, leaf width: 4-7 cm, Stipules: opposite; Flowering season: April to June; Petals: retiring; Flower color (actually, sepal color): dark purple; Diameter: 1.5 to 3 cm; Flower shape: vase/bowl; Number of stamens: 12; Number of pistils: 6.