Spiraea salicifolia L.

Willowleaf meadowsweet (en), Spirée à feuilles de Saule (fr), Spirée à feuilles de saule (fr)

Species

Angiosperms > Rosales > Rosaceae > Spiraea

Characteristics

Shrubs, 10–20 dm, ?thicket forming?. Stems erect to ascending or spreading, rarely branched. Leaves: petiole 2–6 mm; blade narrowly rhombic to rhombic or lanceolate to narrowly elliptic, ?usually widest at middle?, 3–7 × 1–3 cm, ?length 3–5 times width?, chartaceous, base acute, margins sharply serrate to serrulate nearly to base, ?number of primary and secondary serrations 1 times number of secondary veins (excluding inter-secondary veins)?, venation pinnate craspedodromous, secondary veins not prominent, ?regularly terminating in primary teeth, inter-secondary veins usually 1–4 per leaf?, apex acute, abaxial surface mostly puberulent, adaxial glabrous. Inflorescences mostly terminal, cylindric to obconic panicles, 5–10 × 2–4 cm ?height 2–5 times diam.?; branches ?sometimes in axils of leaves?, puberulent or glabrous. Pedicels 3–6 mm, puberulent or glabrous. Flowers 4–7(–10) mm diam.; hypanthia hemispheric, 0.8–1 mm, abaxial surface glabrous or sparsely puberulent, adaxial glabrous; sepals ovate, 0.8–1 mm; petals pink, elliptic to widely obovate, 1.8–2 mm; staminodes 0; stamens 28–32, 2 times petal length. Follicles oblanceoloid, 4 mm, glabrous, ?adaxial suture glabrous or ciliate?.
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Shrubs erect, to 2 m tall. Branchlets dense, yellowish brown, slightly angled, pubescent when young, later glabrescent; buds ovoid to oblong-ovoid, 3–5 mm, with several brown scales, apex acute. Petiole 1–4 mm, glabrous; leaf blade oblong-lanceolate to lanceolate, 4–8 × 1–2.5 cm, glabrous, occasionally thinly pubescent on margin, base cuneate, margin entire to densely and sharply serrate or deeply incised doubly serrate, apex acute or acuminate. Panicles oblong to pyramidal, 6–13 × 3–5 mm, densely many flowered; rachis and pedicels thinly pubescent; pedicels 4–7 mm; bracts lanceolate to linear-lanceolate, 6–10 mm, slightly thinly pubescent, margin entire or with a few teeth. Flowers 5–7 mm in diam. Hypanthium campanulate, puberulous abaxially. Sepals triangular, 1–1.5 mm, ascending in fruit. Petals pink, ovate, 2–3.5 × 2–2.5(–3) mm, apex often obtuse. Stamens ca. 30, nearly 2 × as long as petals. Disk annular, with crenulate lobes. Carpels sparsely pubescent; styles shorter than stamens. Follicles erect, almost parallel, glabrous or sparsely pubescent on adaxial suture; styles recurved. Fl. Jun–Aug, fr. Aug–Sep.
A clump forming shrub. It grows 1.2-2 m tall. The leaves are oblong or sword shaped and 2.5-8 cm long. They have double teeth.
A similar Eurasian sp. that sometimes escapes from cult., has pink fls, and the lvs are broadest below the middle
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 1.2 - 2.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Wet boggy places in the mountains of N. Japan. Riverbanks, flooded meadows, tussocks of forest and meadow bogs; nearly always forming thickets.
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It is a temperate plant. It grows near river banks, damp grasslands and clearings between 200-900 m in north China.
Light 6-9
Soil humidity 4-7
Soil texture 2-5
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 4-7

Usage

Uses fodder gene source medicinal
Edible leaves
Therapeutic use Unspecified (bark), Cold Remedy (root), Cough Medicine (root), Hunting Medicine (root), Antidiarrheal (seed)
Human toxicity -
Animal toxicity -

Cultivation

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

Images

Habit

Spiraea salicifolia habit picture by Sabina Hartmann (cc-by-sa)
Spiraea salicifolia habit picture by Sabina Hartmann (cc-by-sa)

Leaf

Spiraea salicifolia leaf picture by Jean-Louis PASTEUR (cc-by-sa)
Spiraea salicifolia leaf picture by DH Sol30 (cc-by-sa)
Spiraea salicifolia leaf picture by Sabina Hartmann (cc-by-sa)

Flower

Spiraea salicifolia flower picture by Jean-Louis PASTEUR (cc-by-sa)
Spiraea salicifolia flower picture by cc dd (cc-by-sa)
Spiraea salicifolia flower picture by Annika K (cc-by-sa)

Fruit

Spiraea salicifolia fruit picture by Yvon Red (cc-by-sa)
Spiraea salicifolia fruit picture by Waldemar Zeja (cc-by-sa)

Distribution

Spiraea salicifolia world distribution map, present in Austria, Belgium, Bulgaria, Belarus, Canada, Switzerland, China, Czech Republic, Germany, Denmark, Spain, Estonia, France, United Kingdom of Great Britain and Northern Ireland, Croatia, Hungary, Italy, Japan, Kazakhstan, Liberia, Moldova (Republic of), Mongolia, Norway, Poland, Korea (Democratic People's Republic of), Romania, Russian Federation, Serbia, Slovakia, Slovenia, Sweden, Ukraine, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:30200186-2
WFO ID wfo-0000997542
COL ID 6ZBLQ
BDTFX ID 65792
INPN ID 124668
Wikipedia (EN)
Wikipedia (FR) Link

Synonyms

Spiraea arguta Spiraea virgata Spiraea humilis Spiraea sibirica Spiraea salicifolia var. lanceolata Spiraea salicifolia var. lanceolata Spiraea salicifolia var. humilis Spiraea amena var. pauciflora Spiraea salicifolia var. salicifolia Spiraea salicifolia