Japanese name: コヒロハハナヤスリ（小広葉花鑢） Scientific name:Ophioglossum petiolatum
[Overview]
A summergreen terrestrial fern 8–25 cm tall, growing in colonies along roadsides and in forests in hills and fields.
The rootstock is fleshy and not much developed, forming a small, short lump or cylinder with sparse roots.
1–3 leaves emerge.
The leaves consist of a sterile leaf and a fertile leaf; the sterile leaf is oblong to broadly ovate, 1–6 cm long and 0.7–3 cm wide, with a short stalk of about 1 mm, which joins with the stalk of the fertile leaf and merges into the common stalk (stalk).
The veins form a coarse network, and the margin is entire.
The fertile leaf emerges from the base of the sterile leaf and is 6–16 cm long and stalked; the spore-bearing spike portion is about 2–4.5 cm long.
The sporangia are arranged on both sides of the axis, and the outer coat of the spores has a fine network pattern.
The common stalk (stalk) is 2–10 cm long.
