Chiba University Matsudo/Kashiwa Campus Plant Database

Details of genus: Haworthia Duval [1107]

genus_ja: ハオルチア

genus_en:

# spp.: 59

pub_year: 1809

accepted: Accepted

Family: Asphodelaceae

family_ja: ツルボラン

Infra familial classification: Subfamily Asphodeloideae

distribution_en: S. Africa

description_en: Genus of over 150 species of dwarf, basal-rosetted, more or less stemless, perennial succulents from lowland and sometimes hillsides of Namibia, Swaziland, Mozambique, and South Africa. They generally offset to form clumps. The linear to broadly ovate or triangular, fleshy, variably coloured leaves are often covered with minute, bright tubercles, which are sometimes almost transparent. The small, tubular to funnel-shaped flowers are borne in loose racemes from spring to autumn. In frost-prone areas, grow as foliage plants in a temperate or warm greenhouse or conservatory. In warmer regions, grow in a trough or raised bed, or in containers outdoors.

hardiness_en: Frost tender.

cultivation_en:

propagation_en: Sow seed at 21-24°C (70-75°F) in spring. Pot up offsets, or divide, in spring. Root leaf cuttings from soft-leaved species in spring or summer.

pests_en: Susceptible to mealybugs.

description_ja:

comment:

comment_ja: 和名はハウォルチア、ハウオルチアとも表記し、英語の発音ではハワーシアが近い。
APG3ではXanthorrhoeaceaeだったが、Asphodelaceaeが保存名となったため、APG4でAsphodelaceaeに戻った。
従来の属の範囲は単系統でないことが示され、Aloeとともに複数の属に分割・再編成されている。狭義のHaworthiaには玉扇のように葉に「窓」があるグループが残り、十二の巻のような固く三角形の葉のグループはHaworthiopsisに移動、その他、少数の種からなる属が認められた。

type_species:

Phylogenetic definition:

Update Information: Created: 2007-12-06 12:51; Updated: 2023-07-03 09:11 by hkokubun@mac.com

family: