Maltese cross

Japanese: Maltese cross（英語表記）Maltesecross

...The flowers are about 3cm in diameter and reddish purple. Other species cultivated include L. coronaria Desu. (native to Europe), L. chalcedonica L. (native to Siberia; English names: Maltese cross, scarlet lychnis, Jerusalem cross, scarlet lightning), L. pendula L. (illustration), L. coeli - rosa Desr. (rose-of-heaven), and L. haegeana Lem. (a hybrid of Ezo lychnis and Matsumoto lychnis) (illustration). There are several species of Lychnis (English name: campion) that grow wild in Japan. The most representative of these is L. miqueliana Rohrb. (illustration), a large perennial plant often found on the edges of deciduous forests. Its stems grow upright, reaching heights of 50cm to 1m, and its nodes are swollen and dark purple.

*Some of the terminology that mentions "Maltese cross" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…花は直径3cmほどで紅紫色。そのほかにも，スイセンノウL.coronaria Desu.(ヨーロッパ原産)，アメリカセンノウL.chalcedonica L.(英名Maltese cross,scarlet lychnis,Jerusalem cross,scarlet lightning，シベリア原産)，サクラマンテマL.pendula L.（イラスト），コムギセンノウL.coeli‐rosa Desr.(英名rose‐of‐Heaven)，リクニス･ハーゲアナL.haegeana Lem.(エゾセンノウとマツモトセンノウの雑種)（イラスト）など数種が栽植される。　また日本には数種のセンノウ属Lychnis(英名campion)植物が野生しており，その代表であるフシグロセンノウL.miqueliana Rohrb.（イラスト）は落葉樹林の林縁によく見られる大型の多年草で，茎は高さ50cmから1mに達し，直立，節はふくらみ暗紫色を帯びる。…