Pentapetes phoenicea L.

Pentapetes phoenicea is a plant of tropical Asia that is cultivated for its bright red flowers. It has become naturalized in many areas such that the native distribution is now obscured.

Annual herbs, 0.5-1 m tall, sparsely stellate hairy. Petiole 1-2.5 cm; leaf blade linear-lanceolate, 5-10 × 1-2 cm, base broadly cuneate, rounded or truncate, margin crenate, apex acuminate. Flowers opening at noon, closing at dawn. Calyx lobes lanceolate, ca. 1 cm, abaxially stellate velutinous and hispid. Petals red, broadly ovate, ca. 12 mm. Staminodes tongue-shaped, 12-13 × ca. 1 mm. Ovary ovoid, villous; ovules 8-12 per cell; style filiform, glabrous, ca. 1 cm. Capsule nearly globose, ca. 1.2 cm in diam., densely stellate hairy and hispid, shorter than persistent calyx. Fl. summer-autumn.

Cultivated, requires moist conditions. Guangdong, Guangxi, Sichuan, S Yunnan [Bangladesh, India, Indonesia, Japan, Malaysia, Myanmar, Nepal, Philippines, Sri Lanka, Thailand, Vietnam; N Australia; naturalized in Central America].

Pentapetes phoenicea là một loài thực vật có hoa trong họ Cẩm quỳ. Loài này được L. mô tả khoa học đầu tiên năm 1753.

ゴジカ（午時花、Pentapetes phoenicea）は熱帯アジア原産の多年草で、日本では春蒔き一年草として扱う。アオイ科（従来の分類ではアオギリ科）ゴジカ属の唯一種。

葉は鋸歯があって細長く、互生する。花は橙色で直径4cmほどの両性花で、夏から秋にかけて葉腋に咲く。昼ごろ開いて1日でしぼむので、午時花という。果実は円いさく果でがくに包まれ、直径1mmほどの種子を多数含む。

原産地では水田雑草としてよく見られる。日本には江戸時代中期以前に入り、古くは薬用にされたというが、後に観賞用となった。

ゴジカに似たキンゴジカ（金午時花）は、花が淡黄色で南日本に自生し、旧アオイ科に属す（ただしAPG植物分類体系ではアオギリ科をアオイ科に含めているので、同じ科ということになる）。

「https://ja.wikipedia.org/w/index.php?title=ゴジカ&oldid=47326861」から取得 カテゴリ: アオイ科アオギリ科花卉