Leucas mollissima var. chinensis("Yanbarutsuruhakka")
Japanese name: ヤンバルツルハッカ（山原蔓薄荷） Scientific name:Leucas mollissima var. chinensis
[Overview]
A perennial growing on rocky seashores, sunny roadsides, and waste ground.
The whole plant is densely covered with soft white hairs.
The stem branches from the base, is square in cross section, and either creeps along the ground or rises, reaching 20–60 cm in length.
The leaves are simple and opposite, ovate to broadly ovate, 0.5–3.5 cm long and 0.5–2.5 cm wide, somewhat thick, with rounded tips and 3–5 pairs of rounded teeth along the margin.
There are short petioles.
It flowers all year round.
Verticillasters emerge from the leaf axils in the middle and upper parts of the stem, each bearing 2–8 white lipped flowers.
The corolla is about 1 cm long; the upper lip is hood-shaped and densely covered with white hairs on the outside, and the lower lip is 3-lobed.
The calyx is tubular, 0.4–0.5 cm long, with 10 veins and 10 needle-like pointed teeth arranged alternately long and short.
The calyx grows to 0.6–0.7 cm long at the fruiting stage.
The fruit is a schizocarp.
Depending on conditions, some individuals are said to flower immediately after germination.
