Cornus controversa Hemsl.

Giant dogwood (en)

Species

Angiosperms > Cornales > Cornaceae > Cornus

Characteristics

Trees 3–13(–20) m tall. Bark dark gray or yellowish gray, smooth; branches ± horizontal; branches of current year purplish, later greenish, glabrous or pubescent; older branches greenish, with conspicuous semicircular leaf scars and rounded lenticels; winter buds purplish, ovoid or conical, 3–8 mm, glabrous, with several alternate overlapping scales. Leaf blade broadly ovate or broadly elliptic-ovate, 5–13 × 3–9 cm, abaxially light or grayish green, sparsely pubescent with appressed trichomes, papillate, veins 6 or 7(–9), abaxially raised and slightly purplish, base subrounded, apex acute or acuminate. Corymbose cymes terminal, 5–14 cm in diam., pubescent with appressed trichomes. Flowers 8–9 mm in diam.; buds nearly orbicular, shortly pedicellate. Calyx teeth ca. 0.5 mm, taller than disk. Petals oblong-lanceolate, 3–4.5 × 1–1.6 mm. Stamens longer than petals; filaments whitish, 4–5 mm. Style 2–3 mm, glabrous. Fruit purplish red or bluish black, globose, 6–7 mm in diam.; stones globose, 5–6 mm in diam., inconspicuously 8-ribbed. Fl. May–Jun, fr. Jul–Sep. 2n = 20.
More
A tree. It grows to 12 m tall. It has a straight trunk with branches in tiers. It loses its leaves during the year. The leaves are dark green. They turn purple in autumn. The leaves are glossy and strongly veined. They are arranged alternately on the red twigs. The flowers occur in flat clusters. They are white and about 10 cm across. The fruit are bluish-black. They are shiny.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread endozoochory
Mature width (meter) 3.0 - 5.25
Mature height (meter) 4.0 - 10.0
Root system -
Rooting depth (meter) -
Root diameter (meter) 0.7
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway c3

Environment

It is a temperate plant. It is native to East Asia. It does best in light to medium, well-drained soils. It needs an open sunny position. It is resistant to frost but sensitive to drought. It suits hardiness zones 5-8. Burnie Rhodo garden. Arboretum Tasmania.
More
Woodland, hedges and thickets; at elevations from 600-2,000 metres. Broad-leaved or mixed broad-leaved and needle-leaved forests; at elevations from 200-2,600 metres.
Light 4-9
Soil humidity 3-6
Soil texture 2-5
Soil acidity 3-8
Soil nutriment -
Hardiness (USDA) 6-8

Usage

The fruit are eaten raw.
Uses charcoal construction dye environmental use material medicinal oil ornamental timber wood
Edible fruits saps seeds
Therapeutic use Fever (unspecified), Inflammation (unspecified), Pain (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Plants can be grown from seed.
Mode cuttings graftings seedlings
Germination duration (days) 90 - 730
Germination temperacture (C°) 16 - 18
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -18
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Flower

Cornus controversa flower picture by Dieter Albrecht (cc-by-sa)

Distribution

Cornus controversa world distribution map, present in China, United Kingdom of Great Britain and Northern Ireland, Japan, Myanmar, Nepal, Korea (Democratic People's Republic of), Taiwan, Province of China, and Viet Nam

Conservation status

Cornus controversa threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:271543-1
WFO ID wfo-0000924640
COL ID YGHW
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Bothrocaryum controversum Cornus sanguinea Cornus obovata Swida controversa var. alpina Swida controversa var. shikokumontana Cornus controversa var. angustifolia Cornus controversa var. alpina Cornus controversa var. shikokumontana Swida controversa Cornus controversa