Jepson Herbarium
		University of California, Berkeley

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Indexes to all accepted names and synonyms: | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |

Tree, shrub, or erect or twining per; dioecious or flowers staminate and bisexual, wind-pollinated; epidermis with stiff hairs, glandular or not; sap watery.
Leaf: petioled; simple, unlobed or palmately lobed or compound, all alternate or lower opposite.
Inflorescence: terminal or axillary, unisexual or with both male and bisexual flowers.
Flower: perianth parts 4–6, free or fused; stamens 0 or 4–6; ovary 0 or 1, superior, chamber 1, ovule 1, style 1, short, stigmas 2, slender, plumose.
Fruit: drupe or achene, occasionally ± enclosed in persistent perianth.
11 genera, ± 100 species: temperate, tropical areas worldwide. [Sytsma et al. 2002 Amer J Bot 89:1531–1546] —Scientific Editors: Douglas H. Goldman, Bruce G. Baldwin.
Unabridged references: [Mitchell 1988 Bull New York State Mus Nat Hist 464:17–23]

Key to Cannabaceae

Tree or shrub, deciduous; hairs unbranched.
Leaf: alternate, simple, unlobed, 3-veined from base.
Flower: staminate flowers in axils at base of new growth, 1 or clustered; bisexual flowers 1, in axils, perianth not persistent.
Fruit: drupe.
± 60 species: widespread, tropics and n temperate. (Latin name for the lotus of Homer) [Whittemore 2008 J Bot Res Inst Texas 2:627–632] Lvs on vigorous stems may be abnormally large, and (in Celtis reticulata) differently shaped.

Tree to 20(25) m.
Leaf: blade 70–110 mm, 30–50 mm wide, narrowly elliptic to lanceolate or lance- ovate, tip slender, long- acuminate, flexible, margins serrate, upper surface smooth, abaxially soft-hairy, major veins raised.
Fruit: 10–12 mm diam, dark purple-brown (to black); pedicel 11–31 mm.
Riparian woodland; 15–500 m. Sacramento Valley, South Coast;

Previous taxon: Celtis
Next taxon: Celtis reticulata

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].

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Bioregions in which taxon occurs	Red area (if present) is the part of the bioregion lying between the upper and lower elevation limits of the taxon; 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 have georeferencing or identification issues.
Chart based on elevation range in Manual and elevations and coordinates of CCH records. Data provided by the participants of the Consortium of California Herbaria. Note: About half of the CCH records include both elevation and coordinates.	Map made in collaboration with Scott Loarie. Data provided by the participants of the Consortium of California Herbaria. View all CCH records   CCH collections by month Duplicates counted once; synonyms included. Species do not include records of infraspecific taxa. Blue line denotes Manual flowering time.