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Plant Encyclopedia

Draba nemorosa

Draba nemorosa (woodland draba, "Inunazuna")

Japanese name: イヌナズナ (犬薺)
Scientific name: Draba nemorosa

Draba nemorosa

[Overview]
A biennial 5–60 cm tall, found in fields and along roadsides.
The whole plant is densely covered with simple hairs and stellate hairs.
A single stem rises up, sometimes branching at the base.
There are basal leaves and stem leaves; the basal leaves are elliptic-obovate to oblanceolate, 1–3.5 cm long and 0.5–1.5 cm wide, toothed, and stalkless.
The stem leaves are alternate and simple, ovate to elliptic, 0.5–3 cm long and 0.3–1 cm wide, toothed, and stalkless.
A raceme at the stem tip bears a few dozen yellow four-petaled flowers, 0.4 cm across, sparsely arranged.
The petals are obovate with a slightly notched tip.
The sepals are ovate with short hairs on the outside.
The fruit is a flat, oblong silicle 0.4–0.8 cm long, with simple hairs or hairless.
The seeds are very small, broadly elliptic, and reddish brown.

Details

Names
English: woodland draba, yellow whitlow-grass, yellow whitlow-wort
Japanese: イヌナズナ(犬薺)
Life form
Winter annual
Habit
Terrestrial
Flowering season
March, April, May, June
Distribution or origin
Japan (Hokkaido to Kyushu), Northern Hemisphere
Height
50–600 mm
Leaf arrangement
Alternate, Basal
Leaf margin
Serrate
Inflorescence
Raceme
Flower color
Yellow
Flower diameter
4
Leaf color
Green
Japan Flower Trade Code
56304

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

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