EVERGREEN

Plant Encyclopedia

Agrimonia nipponica

Agrimonia nipponica ("Himekinmizuhiki")

Japanese name: ヒメキンミズヒキ (姫金水引)
Scientific name: Agrimonia nipponica

Agrimonia nipponica

[Overview]
A perennial growing in mountain forests and along valleys.
Some plants reach about 80 cm in height.
It has a thickened rhizome.
The plant is mostly hairless, with slender, sparsely branched stems.
Leaves are alternate and odd-pinnately compound, with 3–5 leaflets.
The leaflets are elliptic to obovate with tips that are not very pointed, and the margins have rounded serrations.
The underside of the leaf has indistinct white glandular dots.
Racemes at the stem tips bear sparse flowers.
The flowers are yellow, 5-petaled, and 5–7 mm across.
The petals are oblong, 3–4 mm long and 1–1.2 mm wide.
The stamens are few, 5–8.
The calyx tube is obconical, and the lobes are recurved, with appressed hairs on the veins.
The calyx tube in fruit is small, 2 mm long and 2–3 mm across.
The calyx tube has a few hooked spines 2 mm long, which curve inward.
The fruit is an achene.

[Notes]
Kin-mizuhiki can be distinguished by its greater number of leaflets (5–9), pointed leaflet tips, larger flowers 6–11 mm across, broader petals, and more numerous stamens (8–15).

Details

Names
Japanese: ヒメキンミズヒキ(姫金水引)
Life form
Perennial
Habit
Terrestrial
Similar plants
Flowering season
August, September
Distribution or origin
Japan (western and southern Hokkaido to Yakushima), Jeju Island
Height
800 mm
Leaf shape
Odd-pinnate compound leaf
Leaf arrangement
Alternate
Leaf margin
Serrate
Inflorescence
Raceme
Number of petals
5
Flower color
Yellow
Flower diameter
5–7
Leaf color
Green

Translated from our Japanese encyclopedia. If anything differs, the Japanese page is correct.

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