Chiba University Matsudo/Kashiwa Campus Plant Database

Details of genus: Rhamnus L. [773]

genus_ja:

genus_en:

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pub_year:

accepted: Accepted

Family: Rhamnaceae

family_ja: クロウメモドキ

Infra familial classification:

distribution_en: N.hemisphere to Brazil, S.Africa

description_en: Genus of 125 or more species of usually thorny, deciduous or evergreen shrubs and trees, widely distributed in N. temperate regions, with a few in the S. hemisphere. They occur in woodland, heathland, scrub, fens, bogs, or rocky places, often on alkaline soils. They are cultivated primarily for their foliage, which has good autumn colour in some deciduous species, and for their decorative fruits. The leaves are opposite or alternate. Tiny, hermaphrodite or unisexual, cup-shaped flowers, 2-4mm (1/16-1/8in) across, with 4 or 5 petals, are borne in axillary racemes or umbel-like clusters; they are often fragrant and usually yellowish white, greenish white, or white. Some flowers, particularly those of R. frangula are very attractive, to bees. Grow in a shrub border; R. cathartica and R. frangula may be used as hedging, or in a wild or woodland garden. All parts may cause severe discomfort if ingested.

hardiness_en: Fully hardy to frost hardy.

cultivation_en:

propagation_en: Sow seed in containers in a cold frame as soon as ripe. Root semi-ripe cuttings of evergreen species in summer. Root greenwood cuttings of deciduous species in early summer, or layer in autumn or spring.

pests_en: Trouble free.

description_ja:

comment:

comment_ja: クロウメモドキ

type_species:

Phylogenetic definition:

Update Information: Created: 2007-12-06 12:51; Updated: 2022-03-09 15:20

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