Chiba University Matsudo/Kashiwa Campus Plant Database

Details of genus: Coix [1900]

genus_ja:

genus_en:

# spp.:

pub_year:

accepted:

Family: Poaceae

family_ja: イネ

Infra familial classification:

distribution_en:

description_en: Genus of about 5 species of monoecious, annual or perennial, often rhizomatous grasses, originating in E. Asia but widely naturalized in tropical regions throughout the world. The leaves are flat and narrowly lance-shaped. Coix species produce compound inflorescences, borne in the upper leaf axils, which consist of many racemes of separate male and female spikelets. Female flowers of C. lacryma-jobi, the only species commonly cultivated, produce hard, bead-like seeds, which are frequently used in the manufacture of rosaries. The teardrop-like shape of the seeds gives rise to the common names, Christ’s or Job’s tears. C. lacryma-jobi may be grown outdoors in both warm-and cool-temperate climates. It is suitable for an annual border or for infilling in a herbaceous border.

hardiness_en: Half hardy.

cultivation_en:

propagation_en: Sow seed at 13-16°C (55-61°F) in late winter or early spring, and plant out when danger of frost has passed. In warm areas, sow seed in situ in spring.

pests_en: Trouble free.

description_ja:

comment:

comment_ja: ジュズダマ，ハトムギ

type_species:

Phylogenetic definition:

Update Information: Created: 2007-12-06 12:51; Updated: 2020-09-04 03:56

family: