Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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Elizabeth McClintock

Perennial, shrub, vine, tree, generally with milky juice, monoecious or dioecious
Leaves alternate or opposite, generally simple, evergreen or deciduous, entire to lobed, petioled; stipules sometimes ± 0
Inflorescence: raceme, spike, head, or flowers enclosed in thickened receptacle tissue, axillary
Flower unisexual, 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: multiple achenes within fleshy calyces or surrounded by fleshy receptacle tissue
Genera in family: ± 40 genera, 900–1000 species: tropical, subtropical, some temp; many cultivated (Ficus ; Artocarpus , breadfruit, jackfruit; Morus ). Pollinated by insects or wind. See Cannabaceae for Cannabis , Humulus , sometimes included in this family.



Tree, unarmed, monoecious or dioecious
Leaves alternate but sometimes clustered with inflorescences on short shoots, irregularly lobed, toothed, deciduous; major veins pinnate
Inflorescence catkin-like spike, ± pendent, peduncled; staminate ephemeral
Pistillate flower wind-pollinated; style deeply 2-parted
Fruit: multiple of achenes within fleshy calyces on inflorescence receptacle, ± like a blackberry
Species in genus: ± 12 species: temp, warm temp n hemisphere
Etymology: (Latin: mulberry)

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bioregional map for MORUS being generated
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Morus
Retrieve dichotomous key for Morus
Overlay Consortium of California Herbaria specimen data by county on this map
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