Chiba University Matsudo/Kashiwa Campus Plant Database

Details of genus: Costus L. [1902]

genus_ja: オオホザキアヤメ

genus_en:

# spp.: 101

pub_year: 1753

accepted: Accepted

Family: Costaceae

family_ja: オオホザキアヤメ

Infra familial classification:

distribution_en: Tropics & Subtropics

description_en: Genus of over 90 species of mostly clump-forming, rhizomatous perennials with an open, lax habit found on forest floors in tropical Africa, Asia, Australia, and North, Central, and South America. The spirally arranged, somewhat fleshy leaves are inversely lance-shaped, lance-shaped, or elliptic. Costus species are cultivated for their showy, solitary or paired, white, yellow, orange, pink, or red flowers with basal bracts, usually produced in dense, terminal heads on leafy shoots or sometimes on leafless shoots. The flowers are tubular, each with 3 petals, usually of equal size. Where temperatures fall below 18°C (64°F), grow in a warm greenhouse. In humid tropical climates, grow in a shady border.

hardiness_en: Frost tender.

cultivation_en:

propagation_en: Sow seed at 20°C (68°F) as soon as ripe. Divide in spring.

pests_en: Red spider mites may be troublesome under glass.

description_ja:

comment:

comment_ja: コスタス

type_species:

Phylogenetic definition:

Update Information: Created: 2007-12-06 12:51; Updated: 2022-06-05 23:44 by hkokubun@mac.com

family: