Chiba University Matsudo/Kashiwa Campus Plant Database

Details of genus: Picea A.Dietr. [19]

genus_ja:

genus_en: Spruce

# spp.:

pub_year:

accepted: Accepted

Family: Pinaceae

family_ja: マツ

Infra familial classification:

distribution_en:

description_en: Genus of 30-40 species of monoecious, evergreen, coniferous trees occurring in forest in cool-temperate regions of the N. hemisphere. They have whorled branches and needle-like leaves set singly around the shoots. The woody, oval to oblong-cylindrical female cones, terminal on main shoots and sideshoots, are erect at flowering, later pendent; they ripen in a season from green or red when young, to purple or brown when mature. Ovoid, yellow to red-purple male cones, 2-3cm (3/4-1 1/4in) long, are borne in spring on the previous year’s shoots. Spruces are useful for shelter planting or as specimen trees; several cultivars are dwarf or slow-growing.

hardiness_en: Fully hardy to frost hardy.

cultivation_en:

propagation_en: Sow seed in containers in a cold frame in spring. Graft cultivars in winter. Take ripewood cuttings of dwarf cultivars in late summer.

pests_en: Adelgids may cause galls, and aphids may cause needle loss. Red spider mites may be trouble-some. Susceptible to honey fungus.

description_ja:

comment: Cool N. hemisphere

comment_ja: トウヒ，エゾマツ

type_species:

Phylogenetic definition:

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

family: