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(First upload on April 24 2017. Last on September 22 2017) [ 日本語 | English ]

Orychophragmus violaceus (L.) O. E. Schulz






Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily

Orychophragmus Bunge (ショカツサイ)
Shokatsusai (ショカツサイ, 諸葛菜), Chinese violet cress
ムラサキハナナ (紫花菜)
オオアラセイトウ (大紫羅欄花)

Confusion: sometimes called Hanadaikon (ハナダイコン) = Hesperis matronalis L.

Life form: annual/biennial forb
Distribution: native to eastern China (exotic to Japan)

introduced to Japan in Edo Era

Habitat: disturbed sites, escaped from gardening (in Japan)
Seed: developing seedbank
Use: gardening, edible
var. lasiocarpus Migo (ケショカツサイ)

O. violaceus vs. H. matronalis
Flower: concentrated on the top vs. sparse
Flowering stalk: branching vs. no branching
Leaf: gloss vs. matte
         elliptic vs. lanceolate
Hair: none on the leaves vs. rough
Teeth: rough vs. fine
索引

Orychophragmus violaceus in Asia


Tokyo

ST1 ST2 ST3
[1-3] around Gokoku Temple (護国寺), Tokyo, on March 15 2017.

Northeast China

ST4 ST5 ST6
[4-6] in the campus of Northeast Normal University in Changchun, northeastern China, on June 10 2017.

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