EVERGREEN

Plant Encyclopedia

Euphyllophyta
Angiospermae
Caryophyllales
Caryophyllaceae
Cerastium
Cerastium fontanum subsp. vulgare var. angustifolium
Cerastium fontanum subsp. vulgare var. angustifolium

Cerastium fontanum subsp. vulgare var. angustifolium ("Miminagusa")

Japanese name: ミミナグサ (耳菜草)
Scientific name: Cerastium fontanum subsp. vulgare var. angustifolium

Cerastium fontanum subsp. vulgare var. angustifolium

[Overview]
A biennial found along roadsides and in fields, growing 15–30 cm tall.
The stem is tinged with dark purple and has short hairs, with glandular hairs mixed in on the upper part.
The leaves are simple and opposite, 1–4 cm long and 0.4–1.2 cm wide, ovate to oblong-lanceolate.
The leaves are hairy on both sides.
There is no leaf stalk.
A dichotomous cyme at the stem tip bears sparse flowers.
The flowers are white with 5 petals; the petals are 3–5 mm long and shallowly 2-lobed.
There are 10 stamens.
The flower stalks are 0.5–1.5 cm long.
The fruit is a capsule that splits into 10 at the tip.
The seeds are 0.6 mm across and have cylindrical projections.
It resembles Oranda-mimina-gusa, but can be distinguished by its sparsely borne flowers and by the lower flower stalks being longer than the calyx.

[Notes]
The name is said to come from the leaf shape resembling a mouse's ear.

Details

Names
Japanese: ミミナグサ(耳菜草)
Life form
Winter annual
Habit
Terrestrial
Similar plants
Flowering season
May, June
Distribution or origin
Japan (Hokkaido to Ryukyu), Korea, China, Taiwan, Himalaya, Sakhalin
Height
150–300 mm
Leaf shape
Simple leaf (unlobed)
Leaf arrangement
Opposite
Inflorescence
Dichasium (dichasial cyme)
Number of petals
5
Flower color
White
Leaf color
Green

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

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