Jepson eFlora: Taxon page
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Maclura pomifera

Higher Taxonomy
Family: MoraceaeView DescriptionDichotomous Key

Common Name: MULBERRY FAMILY
Habit: [Perennial herb] shrub, [vine] tree, generally with milky juice; monoecious or dioecious. Leaf: alternate [opposite], petioled, generally simple, entire to lobed, evergreen or deciduous; stipules present. Inflorescence: raceme, spike, head, or flowers enclosed in thick receptacle, axillary. Flower: unisexual or bisexual, small, +- radial; sepals generally 4, free or fused at base; petals 0; stamens generally 4, opposite sepals; ovary generally superior, 1-chambered, style simple or 2-parted. Fruit: achenes many within fleshy calyces or surrounded by fleshy inflorescence receptacle.
Genera In Family: 37 genera, 1100 species: tropics, subtropics, some temperate; many cultivated (Ficus, fig; Artocarpus, breadfruit, jackfruit; Morus, mulberry). Note: Insect- or wind-pollinated.
eFlora Treatment Author: Alan T. Whittemore & Elizabeth McClintock
Scientific Editor: Douglas H. Goldman, Bruce G. Baldwin.
Genus: MacluraView Description 

Common Name: OSAGE ORANGE
Habit: Tree, thorny; dioecious. Stem: buds scaly; stipule scars obscure, not encircling stem. Leaf: alternate, or clustered with inflorescences, entire, deciduous; major veins pinnate. Inflorescence: +- erect, spheric; staminate an umbel or umbel-like raceme, > 1 per axil, peduncled; pistillate a head, 1 per axil, sessile. Pistillate Flower: style simple. Fruit: spheric, bumpy, of many achenes within fleshy calyces, yellow-green [red].
Species In Genus: +- 12 species: warm parts of America, Africa, Asia, Australia. Etymology: (William McClure, American geologist, 1760--1840) Note: Wind-pollinated.

Maclura pomifera (Raf.) C.K. Schneid.
NATURALIZED
Habit: Plant to 20 m; thorns to 3 cm. Leaf: petiole 1--4 cm; blade 3--14 cm, ovate to lance-oblong, dark green, sparsely soft-hairy. Fruit: 9--15 cm diam, yellow-green, densely irregularly warty.
Ecology: Streambanks, disturbed areas; Elevation: < 440 m. Bioregional Distribution: GV, SCo, WTR; Distribution Outside California: native to south-central United States. Flowering Time: Apr--Jun Note: Widely planted; fruit inedible. Much less thorny with age.
Unabridged Note: Fruits fall unripe with the seeds still immature, the fruit then ripening on the ground and the seed maturing over the next several months.
eFlora Treatment Author: Alan T. Whittemore & Elizabeth McClintock
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Citation for this treatment: Alan T. Whittemore & Elizabeth McClintock 2016. Maclura pomifera, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=32435, accessed on February 11, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 11, 2016.


Geographic subdivisions for Maclura pomifera:
GV, SCo, WTR;
Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.