Chiba University Matsudo/Kashiwa Campus Plant Database

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Details of genus: Cycas L. [405]

genus_ja: ソテツ

genus_en: Fern palm, Sago palm

# spp.:

pub_year:

accepted: Accepted

Family: Cycadaceae

family_ja: ソテツ

Infra familial classification:

distribution_en: E.Africa to Japan

description_en: Genus of about 15 species of cycads found mainly on dry, stony slopes and in semi-desert and dry, open woodland (and, rarely, at rainforest margins) from Madagascar to S. and S.E. Asia, Australia, and the Pacific islands. They have whorls of pinnate, stiff, leathery leaves, with linear-lance-shaped to sickle-shaped leaflets. Dioecious inflorescences arise from the centres of the leaf rosettes. The large male inflorescences are cone-like, up to 80cm (32in) tall, and usually covered in woolly hairs; the female inflorescences consist of loosely arranged, modified leaves, to 30cm (12in) long, bearing ovules on the margins. Cycas species are generally cultivated for their palm-like appearance. In frost-prone climates, grow in a temperate or warm greenhouse, or as foliage houseplants. In warmer climates, they make excellent specimen plants.

hardiness_en: Frost tender; C. revoluta will survive short periods near to 0°C (32°F) if given some protection.

cultivation_en:

propagation_en: Sow seed at 15-29°C (59-84°F) in spring. Remove and pot up suckers in spring.

pests_en: Susceptible to red spider mites, mealybugs, and scale insects under glass. Cycas species may be damaged by chemical pesticides; use soft soap or biological controls.

description_ja:

The essential 1000 genera certification Genus Cycas (サイカス)

2019 edition

C Level
Family ソテツ
ソテツ属

2003 edition

C Level
Family ソテツ
ヤシ・ソテツ
ソテツ属

1986 edition

B Level
Family ソテツ
針葉樹
ソテツ

comment:

comment_ja:

type_species:

Phylogenetic definition:

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

family:

SystemAccepted?Scientific nameJapanese nameInfra-familial classification# species
APG4 Cycadaceae ソテツ科 Show
PB2 Cycadaceae ソテツ科 Show
PB3 Cycadaceae ソテツ科 Show

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