Exochorda racemosa (Lindl.) Rehder

Common pearlbrush (en)

Species

Angiosperms > Rosales > Rosaceae > Exochorda

Characteristics

Shrubs to 3 m tall. Branchlets red-brown when young, later brown; buds dark purple, trigonous-ovoid, apex obtuse. Petiole 5–15 mm or nearly absent; leaf blade elliptic or narrowly so to oblong-obovate, 3.5–6.5 × 1.5–3.5 cm, glabrous on both surfaces, base cuneate or broadly so, margin entire, rarely obtusely serrate above middle, apex obtuse or acute, rarely apiculate. Raceme 2.5–3.5 cm in diam., 6–10-flowered; peduncle and pedicels glabrous; bracts broadly lanceolate, ca. 3 mm, glabrous. Flowers 2.5–3.5 cm in diam.; pedicel 3–5 mm. Hypanthium shallowly campanulate, glabrous. Sepals broadly triangular, ca. 2 mm, glabrous, apex obtuse or acute. Petals obovate, ca. 1.5 × 1 cm, base shortly clawed, apex obtuse. Stamens 15–20, 3-or 4-fascicled. Capsule glabrous; fruiting pedicel 3–8 mm. Fl. May, fr. Jun–Jul.
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Branchlets red-brown, turning brown in following year. Leaves: petiole 4–7 mm; blade apex rounded to obtuse, usually minutely apiculate. Bracteoles 2, deciduous, linear to oblong, small, petaloid. Pedicels 3–11 mm, proximal bract leaflike, other reduced. Flowers: sepals 2.1–3 mm; petals 12–20 mm; anthers 0.8–1.4 mm.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 2.5 - 4.0
Mature height (meter) 2.5 - 4.0
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

Light 4-8
Soil humidity 2-7
Soil texture 3-4
Soil acidity 2-6
Soil nutriment -
Hardiness (USDA) 5-9

Usage

Uses environmental use medicinal ornamental
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings or seedlings.
Mode cuttings seedlings
Germination duration (days) -
Germination temperacture (C°) 3
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -29
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Leaf

Exochorda racemosa leaf picture by William Coville (cc-by-sa)

Flower

Exochorda racemosa flower picture by Tom Thomas H.Pack (cc-by-sa)
Exochorda racemosa flower picture by Sarah Beeler (cc-by-sa)
Exochorda racemosa flower picture by William Coville (cc-by-sa)

Distribution

Exochorda racemosa world distribution map, present in Canada, China, Kyrgyzstan, Slovakia, Tajikistan, United States of America, and Uzbekistan

Identifiers

LSID urn:lsid:ipni.org:names:724870-1
WFO ID wfo-0001009122
COL ID 3DMTP
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Exochorda grandiflora Spiraea grandiflora Albertia simplicifolia Exochorda tianschanica Exochorda racemosa Exochorda racemosa f. prostrata Amelanchier racemosa Exochorda korolkowii Exochorda alberti Exochorda racemosa Exochorda racemosa var. prostrata Exochorda racemosa var. dentata Exochorda grandiflora var. albertii Exochorda racemosa subsp. racemosa Exochorda grandiflora var. prostrata

Lower taxons

Exochorda racemosa subsp. giraldii Exochorda racemosa subsp. serratifolia