Japanese name: キクモ（菊藻） Scientific name:Limnophila sessiliflora
[Overview]
A perennial growing in water in rice paddies and shallow wetlands.
The whole plant has a faint fragrance.
It extends underground stems into the mud at the bottom of the water and grows in clumps.
The upper part of the stem rises above the water.
The stem above the water is rather densely covered with soft white hairs and has no glandular dots.
Leaves are in whorls of 4–8 and are of two types, submerged and emergent, both pinnately divided.
The lobes of the submerged leaves are fine and thread-like, making them delicate, while the lobes of the emergent leaves are broad and resemble chrysanthemum leaves.
The flowers are reddish purple, borne singly and stalkless in the axils of the leaves on the stem above the water (the emergent leaf axils).
The corolla is tubular, with a 5-lobed lip-shaped tip; the lower lip is 3-lobed.
Cleistogamous flowers (flowers that do not open) are often borne on the submerged leaves.
The fruit is an ovoid capsule enclosed by the calyx.
