Chiba University Matsudo/Kashiwa Campus Plant Database

Genus ja: サンザシ

Genus en: Hawthorn

# spp.: 224 (from genus_families table) | 50 (from names table)

Pub year: 1753

Accepted: Accepted

Family: Rosaceae

Family ja: バラ

Infra familial classification: Subfamily Amygdaloideae: Tribe Maleae: Subtribe Malinae

Distribution en: Temp. Northern Hemisphere to Central America

Description en: Genus of 200 or more species of usually spiny, deciduous, sometimes semi-evergreen trees and shrubs occurring in woodland and scrub in N. temperate regions. The leaves are alternate, simple or lobed, mostly ovate or obovate, and mid- to dark green; some species produce good autumn colour. The white to deep pink flowers are usually shallowly cup-shaped and mostly borne in flat or rounded corymbs at the ends of short, leafy shoots although, rarely, they may be solitary. Fruits, produced in autumn, consist of fleshy exteriors with bony nutlets; they are mostly red but may also be black, yellow, or bluish green. Hawthorns are valued for their long season of interest and their extreme hardiness. They are particularly useful specimen trees for a town, coastal, or exposed garden. C. laevigata and C. monogyna are also used for hedging. The seeds may cause mild stomach upset if ingested.

Hardiness en: Fully hardy.

Cultivation en:

Propagation en: Remove seed from flesh as soon as ripe and sow in a seedbed or in containers in an open frame. Stratify and sow seed in a seedbed in spring (germination may take 18 months). Bud cultivars in midsummer, or graft in winter.

Pests en: Caterpillars, aphids, gall midges, fireblight, honey fungus, rust, and powdery mildew may be troublesome.

Description ja:

Comment: N.temperate

Comment ja: サンザシ

Type species:

Phylogenetic definition:

Update information: Created: 2007-12-06 12:51; Updated: 2024-01-18 11:08 by hkokubun@mac.com