Japanese name: アレチケツメイ（荒地決明） Scientific name:Chamaecrista nictitans
[Overview]
An annual about 50 cm tall, found in sunny places on riverbeds and roadsides.
The stems usually branch from the base of the plant, have upward-pointing soft hairs, and the base of the stem becomes woody.
The leaves are alternate and even-pinnately compound, with around 11 pairs of leaflets that are linear to narrowly ovate with rounded tips and hairy on both surfaces.
There are stalked nectar glands on the upper part of the petiole, and the stipules are needle-shaped to linear-lanceolate.
Yellow five-petaled flowers are borne in the leaf axils, and one of the five petals is large and broadly spatulate.
The fruit is a flat, oblong legume.
[History]
It was collected in Minokamo, Gifu in 2005, and naturalization has been confirmed in Gifu, Aichi, Shizuoka and elsewhere.
