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Osmanthus fragrans

(Kinmokusei in Japan)

Interesting Facts

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Common Names

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Click on the language to view common names.

Common Names in Chinese:

Mu Xi

Common Names in English:

Fragrant Olive, Fragrant Tea Olive, Kinmokusei in Japan, Sweet Olive, Sweet Osmanthus, Tea Olive

Common Names in French:

Olivier Odorant

Common Names in German:

Duftblüte

Common Names in Japanese:

Gin Mokusei, Gin-Mokusei, Kiu Mokusei, Usugi Mokusei

Common Names in Portuguese:

Flor De Imperator, Flor-Do-Emperador

Description

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Family Oleaceae

Trees or erect or scandent shrubs . Branches and branchlets lenticellate . Leaves opposite, rarely alternate or whorled , simple , trifoliolate , or pinnately compound , without stipules; venation pinnate or palmate. Inflorescences terminal or axillary , in cymes, panicles, racemes , umbels, or fascicles. Flowers actinomorphic , bisexual , rarely unisexual or polygamous and plants monoecious, dioecious, or polygamodioecious. Calyx 4(-16) -lobed or -parted, rarely absent. Corolla 4(-16) -lobed, sometimes almost free to base , rarely absent; lobes sometimes united in pairs at base or into a very short tube . Stamens 2(-4), inserted on corolla tube or hypogynous; anthers dehiscing longitudinally; pollen 3-colpate or 3-colporate. Ovary superior, 2-loculed; ovules 2 in each locule, sometimes 1 or numerous . Style 1 or absent; stigma 2-lobed or capitate. Fruit a drupe, berry, capsule, or samara. Seeds with straight embryo, with or without endosperm; radicle curved upward or downward.

About 28 genera and over 400 species: tropical , subtropical , and temperate regions of world, but mainly in Asia. China has 10 genera and 160 species (95 endemic) and is the center of diversity for the genera Forsythia, Syringa, Osmanthus, and Ligustrum.

Many genera are important economically: Fraxinus and Forsythia (medicinal, ornamental ) ; Jasminum, Osmanthus, and Syringa (spice, ornamental) ; Olea (oil ) ; and Fraxinus (timber) .[1]

Genus Osmanthus

Shrubs to small trees , evergreen . Leaves opposite, simple , petiolate ; leaf blade entire or serrate, usually glandular dotted . Inflorescences cymose , fascicled in leaf axils or in very short and axillary or terminal panicles; bracts 2, united at base , usually ciliate . Flowers bisexual , usually becoming unisexual and plants dioecious or androdioecious . Calyx campanulate , 4-lobed. Corolla usually white or yellowish, campanulate, cylindric , or urceolate , lobed , parted , or divided almost to base; lobes 4, imbricate in bud. Stamens 2(-4), mostly attached to upper half of corolla tube ; connective usually minutely mucronate , elongated, or projecting . Ovules 2 in each locule, pendulous. Stigma capitate or 2-cleft. Abortive pistil subulate or conical . Fruit a drupe; endocarp hard or bony; endosperm fleshy ; radicle erect .

About 30 species: SE Asia and America; 23 species in China.

The flowers are fragrant in all species; Osmanthus fragrans is a well-known spice plant.[2]

Physical Description

Species Osmanthus fragrans

Trees or shrubs 3-5(-10) m , glabrous . Petiole 0.8-1.2 (-1.5) cm; leaf blade elliptic to elliptic-lanceolate, 7-14.5 × 2.6-4.5 cm, base cuneate or broadly cuneate, margin entire or usually serrulate along distal half, apex acuminate; midrib and 6-8(-10) primary veins adaxially impressed and abaxially raised. Cymes fascicled in leaf axils, many flowered; bracts broadly ovate , 2-4 mm. Pedicel 4-10 mm. Calyx ca. 1 mm. Corolla yellowish, yellow, or orange, 3-4 mm; tube 0.5-1 mm. Stamens attached to middle of corolla tube; connective elongated into an obscure mucro . Drupe purple-black, ellipsoid , oblique , 1-1.5 cm. Fl. Sep-Oct, fr. Mar. 2n = 46*. [source]

Habit: Erect

Flowers: Bloom Period: January, February, July, August. • Flower Color: White

Size/Age/Growth

Growth Rate: Slow Growing • Size: 8-10' tall.

Landscaping

Care: Follow a regular watering schedule during the first growing season to establish a deep, extensive root system . Feed with a general purpose fertilizer before new growth begins in spring . For a formal appearance , shear annually after flowering.

Habitat

 

Biology

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Growth

Culture: Space 6-8' apart.

Soil: Minimum pH: 5.6 • Maximum pH: 7.5

Sunlight: Sun Exposure: Full to partial sun

Moisture: Water Requirements: Water regularly, when top 3 in. of soil is dry.

Temperature: Heat Zones: High: 12 (>210 days) Low:8 (>90 to 120 days) (map) • Cold Hardiness: High:11 (Above 40 F) Low:8 (10 to 20 F) (map)

Taxonomy

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Unambiguous Synonyms

  1. O. macrocarpus P. Y. Bai.
  2. O. ovalis Miquel
  3. Olea fragrans Thunberg Ex Murray, Syst. Veg. Ed. 14, 57. 1784
  4. Osmanthus longibracteatus H. T. Chang

Notes

Name Status: Accepted Name . Latest taxonomic scrutiny: 15-Mar-2000

Place of publication : Fl. cochinch. 1:29. 1790

Name verified on 23-May-2007 by ARS Systematic Botanists. Last updated: 23-May-2007

Similar Species

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Members of the genus Osmanthus

ZipcodeZoo has pages for 169 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them:

O. acuminata · O. acutus · O. americana · O. americanus (American Devilwood) · O. americanus megacarpus (Devilwood) · O. americanus subsp. megacarpus · O. americanus var. americanus (American Devilwood) · O. americanus var. megacarpus (Devilwood) · O. americanus var. microphyllus (Devilwood) · O. angustifolius · O. apiculatus · O. aquifolia · O. aquifolium · O. armatus · O. asiaticus · O. attenuatus · O. aurantiacus · O. austro-caledonicus · O. austrocaledonicus · O. austrocaledonicus badula · O. austrocaledonicus collinus · O. austrocaledonicus var. crassifolius · O. badula · O. bambusifolius · O. bibracteatus · O. brachystachys · O. bracteatus · O. brevipetiolatus · O. burkwoodii · O. caudatifolius · O. caudatus · O. collinus · O. cooperi · O. corymbosus · O. crassifolius · O. cylindricus · O. cymosus · O. daibuensis · O. decorus (Osmanthus) · O. decorus 'Angustifolius' · O. delavayi (Delavay Osmanthus) · O. delavayi 'Latifolius' · O. delavayi 'Pearly Gates' · O. delavayi × suavis · O. deplanchei · O. didymopetalus · O. dinggyensis · O. enervius · O. eucleoides · O. flagrans · O. floridanus var. americanus · O. fordii · O. forrestii · O. fortunei (Fortune's Osmanthus) · O. fragans · O. fragrans (Kinmokusei in Japan) · O. fragrans 'Aurantiacus' (Fragrant Tea Olive) · O. fragrans 'Conger Yellow' (Conger Yellow Sweet Olive) · O. fragrans f. aurantiacus · O. fragrans f. leucanthus · O. fragrans f. thunbergii · O. fragrans 'Fudingzhu' · O. fragrans 'Latifolius' · O. francii · O. gamostromus · O. gracilinervis · O. hachijoensis · O. hainanensis · O. henryi · O. heterophylla · O. heterophyllis · O. heterophyllous · O. heterophyllus (Holly Osmanthus) · O. heterophyllus all gold · O. heterophyllus 'Argenteomarginatus' · O. heterophyllus 'Aureomarginatus' · O. heterophyllus 'Aureus' Rehder · O. heterophyllus 'Dodd and Zinger's Variegated' · O. heterophyllus f. subangustatus (Holly Osmanthus) · O. heterophyllus 'Fastigiata' · O. heterophyllus 'Goshiki' (Variegated False Holly) · O. heterophyllus 'Gulftide' (False Holly) · O. heterophyllus (G.Don) P.S.Green 'Hebimarginata' · O. heterophyllus 'Kembu' (False Holly) · O. heterophyllus 'Latifolius Variegatus' · O. heterophyllus 'Myrtifolius' · O. heterophyllus (G.Don) P.S.Green 'Mystifolius' · O. heterophyllus 'Ogon' · O. heterophyllus 'Purple Shaft' · O. heterophyllus 'Purple Spire' · O. heterophyllus 'Purpureus' (False Holly) · O. heterophyllus 'Rotundifolius' · O. heterophyllus 'Sasaba' (False Holly) · O. heterophyllus Tricolor · O. heterophyllus var. acutus · O. heterophyllus var. aureus (Holly Osmanthus) · O. heterophyllus var. iriomotensis · O. heterophyllus var. variegatus (Variegated False Holly) · O. heterophyllus 'Variegatus' (Variegated Holly Olive) · O. hupehensis

More Info

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Further Reading

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Notes

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Contributors

Identifiers

Footnotes

  1. Mei-chen Chang, Lien-ching Chiu, Zhi Wei & Peter S. Green "Oleaceae". in Flora of China Vol. 15 Page 272. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
  2. "Osmanthus". in Flora of China Vol. 15 Page 286. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
Last Revised: 7/1/2009