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Maclura pomifera

(Bodock Tree)

Overview

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Interesting Facts

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Common Names

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Click on the language to view common names.

Common Names in English:

Bodock Tree, Bois D'arc, Hedge Apple, Hedge-Apple, Horse Apple, Osage Orange, Osage-Orange, Osageorange

Common Names in French:

Bois D´arc, Maclure épineux, Oranger Des Osages

Common Names in German:

Osagedorn

Common Names in Portuguese:

Laranja-Osage, Pau-D´´´arco

Common Names in Romanian:

Maclură

Common Names in Russian:

Makljura Jablonskonosnaja, маклюра яблонсконосная

Common Names in Spanish:

Machura, Madera De Arco, Mora Amarilla, Naranjo De Los Osages

Common Names in unspecified:

Bois D'arc, Osage Orange, Osage-Orange, Osageorange

Description

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Family Moraceae

Trees , shrubs , vines , or rarely herbs, frequently with milky or watery latex, sometimes spiny . Stipules present, frequently caducous . Leaves alternate, rarely opposite; petiole often present and well-defined; leaf blade simple , sometimes with cystoliths , margin entire or palmately lobed , venation pinnate or palmate. Inflorescences axillary , frequently paired , racemose, spicate , capitate, or rarely cymose , sometimes a fig or syconium with flowers completely enclosed within a hollow receptacle. Flowers unisexual (plants monoecious or dioecious), small to very small. Calyx lobes (1 or) 2-4(-8), free or connate , imbricate or valvate . Corolla absent. Male flowers: stamens as many as and opposite to calyx lobes (except in Artocarpus), straight or inflexed in bud; anthers 1- or 2-loculed, crescent-shaped to top-shaped; pistillode (rudimentary sterile pistil) often present. Female flowers: calyx lobes usually 4; ovary superior, semi-inferior, or inferior, 1(or 2) -loculed; ovules 1 per locule, anatropous or campylotropous; style branches 1 or 2; stigmas usually filiform . Fruit usually a drupe, rarely an achene, enveloped by an enlarged calyx and/or immersed in a fleshy receptacle, often joined into a syncarp. Seed solitary; endosperm present or absent.

Between 37 and 43 genera and 1100â1400 species: widespread in tropical and subtropical areas, less common in temperate areas; nine genera and 144 species (26 endemic, five introduced ) in China.

Economically, the most important species are those of Morus and Maclura associated with the production of silk . Some species in Broussonetia, Maclura, and Morus are important for paper making; some species in Artocarpus, Ficus, and Morus have edible fruit; and some species of Artocarpus and Broussonetia are used for furniture or timber.[1]

Genus Maclura

Trees , deciduous; sap milky . Branches with axillary spines. Terminal buds surrounded by bud scales. Leaves alternate; stipules caducous , free . Leaf blade ovate to lanceolate, not leathery, margins entire, never lobed ; venation pinnate. Inflorescences: flowers borne outside receptacle; staminate inflorescences loose short racemes ; pistillate inflorescences dense heads . Flowers: staminate and pistillate on different plants . Staminate flowers : calyx 4-lobed; stamens 4, inflexed ; filaments filiform ; anthers introrse , with short connective . Pistillate flowers: sepals 4, 2 outer sepals wider than inner ones; ovary 1, superior, 1-locular; style unbranched, filiform. Syncarps globose , 8-12 cm or more diam.; each achene completely enclosed by its enlarged, fleshy calyx.

Maclura is a monotypic genus endemic to North America.[2]

Physical Description

Species Maclura pomifera

Trees , to 20 m. Bark dark orange-brown, shallowly furrowed , ridges flat, often peeling into long, thin strips. Branchlets greenish yellow, becoming orange-brown; thorns stout, straight, to 1.5 cm, usually lateral to spur branch , spur branches often paired . Buds often paired, larger one red-brown, globose , 1.5-2 mm; scales ciliate ; leaf scars half round, bundle scars arranged in oval . Leaves: stipules lanceolate, 1.5-2 mm, pubescent and long-ciliate; petiole 1-2.5 cm, pubescent. Leaf blade 4-12 × 2-6 cm, base rounded , apex acuminate; surfaces abaxially pale , glabrate , midrib and veins pubescent, adaxially lustrous , glabrous , midrib somewhat pubescent. Staminate inflorescences clustered on lateral spur branches; peduncle 1-1.5 cm, pubescent; heads globose or cylindric , 1.3-2.3 cm; pedicels 2-10 mm, glabrate. Pistillate inflorescences: peduncle 2-2.5 mm, glabrous or pubescent; heads globose, sessile on obconic receptacle, to 1.5 cm diam. Staminate flowers : sepals distinct , yellow-green, ca. 1 mm, apex acute, pubescent; filaments ca. 2 mm, closely appressed to sepals, flattened. Pistillate flowers: sepals green, obovate , 3 mm, enclosing and closely appressed to ovary, hoodlike, ciliate near tip ; ovary ovoid, compressed , ca. 1 mm; style base green, ca. 3 mm, branches 4-6 mm, glabrous; stigma yellowish, papillose . Syncarps yellow-green to green, spheric, surface irregular, exuding milky sap when broken , peduncle short, glabrous or pubescent; achenes completely covered by accescent, thickened calyx lobes and deeply embedded in receptacle. Seeds cream colored , oval to oblong , 8-12 × 5-6 mm, base truncate or rounded with 1-3 minute points , margins with narrow groove , apex rounded, mucronate ; surfaces minutely striated or pitted . Flowering spring . [source]

Maclura pomifera is native to southwestern Arkansas, southeastern Oklahoma, and Texas; it is introduced and naturalized elsewhere in the United States. Collections in California, Connecticut, Massachusetts, Rhode Island, and Washington appear to represent isolated escapes . [source]

ID Features: Deciduous tree. Alternate leaf arrangement. Spines cover stems. Large yellow-green fruit. No terminal bud. Inner bark is orange. Milky sap appears when leaves or spines are broken off.

Habit: A small rounded deciduous tree . A short main trunk that splits into many main branches 2' to 3' from the ground . Foliage is mostly toward the outer part of the canopy . The result is a neat clean attractive form.

Flowers: Dioecious. Blooms in June. Not ornamentally important. • Bloom Period: June. • Flower Color: pale green

Seeds: Fruit: Large, pale , yellow synocarp of drupes. Ripens in October. Litter problem.

Foliage: Summer foliage: Simple , deciduous leaves. Alternate leaf arrangement . Oblong leaf shape with a subcordate leaf base and pointed tip . 2" to 5" long. Bright green leaf color. When leaf is removed from stem milky sap appears at leaf scar . • Fall foliage: Yellow-green to golden. Unreliable.

Size/Age/Growth

Growth Rate: Fast. • Size: 20' to 40 ' tall with and almost equal width .

Landscaping

Landscape Uses: For harsh conditions. For interesting fruit. • Liabilities: Spines cover stems. Fruit can be a litter problem.

Habitat

Thickets. 0-1500 m [3].

Zone 4.

Typically found at an altitude of 0 to 2,998 meters (0 to 9,836 feet).[4]

Biology

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Growth

Culture: Easily transplant. Adaptable to most soil conditions. Full sun . Prune tolerant .

Soil: Minimum pH: 6.6 • Maximum pH: 7.5

Sunlight: Sun Exposure: Sun to Partial Shade.

Temperature: Cold Hardiness: 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b. (map)

Taxonomy

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Synonyms

Ioxylon pomiferum Raf. • Maclura pomifera (Raf.) C. K. Schneid. • Maclura pomifera (Raf.) C. K. Schneider • Maclura pomifera (Raf.) Schneid. • Toxylon pomiferum Raf. Ex Sarg.

Similar Species

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Members of the genus Maclura

ZipcodeZoo has pages for 5 species, subspecies, varieties, forms, and cultivars in this genus:

M. excelsa (African Teak) · M. pomifera (Bodock Tree) · M. pomifera 'Cannonball' (Osage-Orange) · M. pomifera 'White Shield' (Bodock Tree) · M. tinctoria (Fustictree)

More Info

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Further Reading

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Notes

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Contributors

Data Sources

Accessed through GBIF Data Portal November 22, 2007:

Identifiers

Footnotes

  1. Zhengyi Wu, Zhe-Kun Zhou & Michael G. Gilbert "Moraceae". in Flora of China Vol. 5 Page 21. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
  2. "Maclura". in Flora of North America Vol. 3. Oxford University Press. Online at EFloras.org. [back]
  3. "Maclura pomifera". in Flora of North America Vol. 3. Oxford University Press. Online at EFloras.org. [back]
  4. Mean = 268.130 meters (879.692 feet), Standard Deviation = 266.150 based on 851 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]
Last Revised: 2012-04-18