Chiba University Matsudo/Kashiwa Campus Plant Database

Details of genus: Macleaya R.Br. [494]

genus_ja:

genus_en: Plume poppy

# spp.:

pub_year:

accepted: Accepted

Family: Papaveraceae

family_ja: ケシ

Infra familial classification:

distribution_en:

description_en: Genus of 2 or 3 species of rhizomatous perennials from grassy meadows, scrub, and woodland in China and Japan. They are cultivated for their foliage and graceful inflorescences. Erect, glaucous stems bear alternate, heart-shaped, palmately lobed, glaucous, grey-green to olive-green leaves, to 25cm (10in) long, with rounded, toothed lobes and prominent veins. Numerous petalless, tubular flowers, to 1cm (1/2in) long, with 2 or 4 sepals and a cluster of stamens, are borne in airy, plume-like panicles. The stems and leaf-stalks produce a yellowish orange latex. Grow in a mixed or herbaceous border or as free-standing specimens; they may also be grown among shrubs or used to form a tall screen. They can be invasive.

hardiness_en: Fully hardy, but new growth may be damaged by late frosts.

cultivation_en:

propagation_en: Sow seed in containers in a cold frame in spring. Divide in late autumn or spring. Separate and transplant rooted rhizomes when dormant. Insert root cuttings in winter.

pests_en: Slugs may attack young growth.

description_ja:

comment: E.Asia

comment_ja:

type_species:

Phylogenetic definition:

Update Information: Created: 2007-12-06 12:51; Updated: 2020-07-05 11:41

family: