Japanese name: シナノタンポポ（信濃蒲公英） Scientific name:Taraxacum platycarpum subsp. hondoense
[Overview]
A perennial 15–30 cm tall, found in fields, on embankments, and on the ridges between rice paddies, on lowlands away from urban areas.
Milky sap exudes when the stems or leaves are damaged.
The leaves are simple and basal, oblanceolate, and either pinnately divided or entire.
A single yellow flower head 4–6 cm across is borne at the tip of a flower stalk rising erect from the leaf axils.
The florets that make up the flower head are all ligulate florets, numbering 100–200.
The involucre is green and 1.5–2.3 cm long at flowering; the outer involucral bracts are ovate to broadly ovate, half the length of the involucre, and do not curve back.
The outer involucral bracts have marginal hairs, and the horn-like projections are absent or very small, 1.5 mm long.
The pollen grains are uniform in size.
The fruit is a pale yellowish brown, spindle-shaped achene with a pappus, and is dispersed by the wind.
[Notes]
Diploid.
It is difficult to distinguish from Ezo-tanpopo by appearance.
