Spiraea cantoniensis Lour.

Reeves' meadowsweet (en), Spirée de Canton (fr)

Species

Angiosperms > Rosales > Rosaceae > Spiraea

Characteristics

Shrubs to 1.5 m tall. Branchlets arching, dark red-brown, turning gray-brown when old, slender, terete, glabrous or pubescent; buds ovoid, small, with several scales, glabrous or puberulous apically or on scale margins. Petiole 4–7 mm, glabrous; leaf blade gray-blue abaxially, dark green adaxially, rhombic-lanceolate to rhombic-oblong, 2–8 × 0.7–2 cm, glabrous or abaxially pubescent, pinnately veined, base cuneate, margin incised serrate above middle, apex acute. Umbels pedunculate, 3–4 × 2–3.5 cm, many flowered; rachis and pedicels glabrous or pubescent; pedicels 8–14 mm; bracts linear to lanceolate, 2–3 mm, glabrous or pubescent. Flowers 5–7 mm in diam. Hypanthium campanulate, glabrous or abaxially pubescent. Sepals triangular or ovate-triangular, 1–1.5 × 1.5–2 mm, erect in fruit, apex acute or shortly acuminate. Petals white, suborbicular or obovate, 2.5–4 × 3–4.5 mm, apex emarginate or obtuse. Stamens 20–28, slightly shorter than to nearly equaling petals. Disk annular, lobed; lobes unequal, suborbicular, apex emarginate. Styles shorter than stamens. Follicles straightly spreading, glabrous; styles terminal, usually divergent. Fl. Apr–May, fr. Jul–Sep.
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Shrubs, 3–20 dm, ?not rhizomatous?. Stems arching, branched. Leaves ?sometimes partly persistent?; petiole 3–10 mm; blade rhombic-lanceolate, 2–7 × 0.5–2 cm, membranous to chartaceous, base cuneate to obtuse, margins coarsely serrate or irregularly 3-fid to slightly lobed distally, venation pinnate simple craspedodromous, secondary veins not prominent, apex acute, abaxial surface ?blue-green, glaucous?, glabrous, adaxial ?dark green?, glabrous. Inflorescences mostly axillary, corymbiform or hemispheric panicles, 2–5 × 2–5 cm; ?filiform bractlets sometimes present at base?; branches glabrous or pubescent. Pedicels 10–20 mm, glabrous or pubescent. Flowers ?often double-flowered, usually distinct?, 10–15 mm diam.; hypanthia campanulate to turbinate, 3–5 mm, abaxial surface glabrous or sparsely hairy, adaxial glabrous; sepals deltate, 1–1.5 mm; petals white, elliptic to orbiculate, 2–4 mm; staminodes 10–12; stamens 20–28, 0.5–1 times petal length. Follicles inflated cymbiform, 0.5–2 mm, glabrous.
Deciduous or semi-deciduous, glabrous shrub up to c. 2 m high, forming dense thickets; stems erect at first, arching to horizontal from second year; bark reddish and becoming papery, deep brown on older stems. Lvs spreading to ascending; petiole 3-10 mm long, narrowly winged, reddish, channelled above; blade lanceolate or narrowly elliptic to rhombic (especially on vegetative shoots), 30-75-(90) × 7-25-(30) mm, acute, narrowly cuneate at base, pale to dark green on both surfaces, with primary veins obvious and sometimes purplish, irregularly and deeply 1-2-serrate to lobed, especially in upper 1/2 of blade. Infls glabrous, spreading, compound corymbs terminating short lateral branches, up to 30-(40) mm wide and 20 mm long; peduncles up to 12 mm long. Sepals broadly triangular, 1-2 mm long, greenish. Petals suborbicular, 3-4 × 2-3 mm, white. Stamens < petals. Fr. of erect, glabrous, dark follicles.
Shrub with thin, flexuous, glabrous branches. Petiole 0.5-1 cm. Leaves oblong, (bi)serrate, 3-7 by 1-3 cm, glabrous, ± glaucous underneath. Corymbs axillary, shortly peduncled, with c. 10-20 flowers, pedicels 7-15 mm. Margin of disc lobed. Stamens in normal flowers 20-24. Pistils (3-)5.
A shrub. It grows 1-2 m high. The small branches are brown. The leaves are almost round and 2-3 cm long and wide. There are teeth along the edge. The leaves often have 3 lobes. They are bluish-green underneath. The flowers are white. There are in a dense group on short branches.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 1.0
Mature height (meter) 1.5 - 1.8
Root system -
Rooting depth (meter) -
Root diameter (meter) 0.4
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 China. It grows between 200-300 m above sea level.
Light 5-9
Soil humidity 3-6
Soil texture 3-4
Soil acidity 2-8
Soil nutriment -
Hardiness (USDA) 7-9

Usage

The young shoots with flower buds are dried for tea.
Uses environmental use medicinal tea
Edible leaves
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings.
Mode cuttings
Germination duration (days) 30 - 40
Germination temperacture (C°) 12 - 18
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -18
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Leaf

Spiraea cantoniensis leaf picture by Rachel Torcedo (cc-by-sa)
Spiraea cantoniensis leaf picture by Bryan French (cc-by-sa)
Spiraea cantoniensis leaf picture by Renee Guidry (cc-by-sa)

Flower

Spiraea cantoniensis flower picture by Barbara Ward (cc-by-sa)
Spiraea cantoniensis flower picture by Eduardo Andrade (cc-by-sa)
Spiraea cantoniensis flower picture by Kenneth Parker (cc-by-sa)

Distribution

Spiraea cantoniensis world distribution map, present in Brazil, China, Colombia, Dominican Republic, Guatemala, Honduras, India, Japan, Korea (Republic of), Sri Lanka, Mexico, Myanmar, Nicaragua, Nepal, New Zealand, Pakistan, Panama, Papua New Guinea, Portugal, Russian Federation, Thailand, Trinidad and Tobago, Taiwan, Province of China, and United States of America

Conservation status

Spiraea cantoniensis threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:742160-1
WFO ID wfo-0001016819
COL ID 4Z6FN
BDTFX ID 65735
INPN ID 124627
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Spiraea neumannii Spiraea lanceolata Spiraea pubescens Spiraea reevesiana Spiraea cantoniensis var. cantoniensis Spiraea cantoniensis

Lower taxons

Spiraea cantoniensis var. jiangxiensis