Jepson eFlora: Taxon page
Vascular Plants of California
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Cneoridium dumosum

Higher Taxonomy
Family: RutaceaeView DescriptionDichotomous Key
Common Name: RUE FAMILY
Habit: Perennial herb, shrub, tree, strongly aromatic, occasionally thorny. Leaf: generally alternate, simple or compound, dotted with minute, translucent glands; stipules 0. Inflorescence: cyme, raceme, or flowers 1, generally bracted. Flower: generally bisexual; sepals, petals each 4 or 5, free or fused at base; sepals generally persistent; petals generally +- white or +- green; stamens generally 2--4 × petal number; ovary superior, generally lobed, chambers 1--5, ovules 1--several per chamber. Fruit: berry, drupe, winged achene, or capsule. Seed: generally oily.
Genera In Family: +- 158 genera, +- 1900 species: especially tropics, warm temperate, especially southern Africa, Australia; used or cultivated for food (Citrus, 20--25 species), perfume, medicine, timber, ornamental (Choisya, Skimmia, etc). Toxicity: Some TOXIC: oils may cause sunburn or dermatitis.
eFlora Treatment Author: Lindsay P. Woodruff & James R. Shevock, except as noted
Scientific Editor: Douglas H. Goldman, Bruce G. Baldwin.
Genus: CneoridiumView Description 

Species In Genus: 1 sp. Etymology: (Greek: diminutive of Cneorum, spurge olive)
Cneoridium dumosum (Nutt. ex Torr. & A. Gray) Baill.
Habit: Shrub, generally < 1.5 m, rounded, evergreen. Stem: intricately branched. Leaf: simple, opposite, 1--2.5 cm, linear. Inflorescence: cyme or cluster; flowers 1--3. Flower: sepals 4, fused at base, 1--1.5 mm; petals 4(5), 5--6 mm, obovate, white; stamens 8, longest opposite sepals, filaments wider at base; ovary sessile, chamber 1, ovules 2, style short, flat, from near ovary base, stigma head-like. Fruit: drupe-like, 5--6 mm diam, gland-dotted, +- green, red in age. Seed: 1--2, 5--6 mm, +- spheric, dark brown.
Ecology: Mesas, coastal bluffs; Elevation: < 1000 m. Bioregional Distribution: s SCo, s ChI (San Clemente Island), PR (exc SnJt); Distribution Outside California: Baja California. Flowering Time: Feb--May
Jepson eFlora Author: Lindsay P. Woodruff & James R. Shevock
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

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Botanical illustration including Cneoridium dumosum

botanical illustration including Cneoridium dumosum


Citation for this treatment: Lindsay P. Woodruff & James R. Shevock 2012, Cneoridium dumosum, in Jepson Flora Project (eds.) Jepson eFlora, eflora_display.php?tid=19877, accessed on January 20, 2020.

Citation for the whole project: Jepson Flora Project (eds.) 2020, Jepson eFlora,, accessed on January 20, 2020.

Cneoridium dumosum
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© 2011 Neal Kramer
Cneoridium dumosum
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© 2012 Neal Kramer
Cneoridium dumosum
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© 2013 Keir Morse
Cneoridium dumosum
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© 2013 Keir Morse
Cneoridium dumosum
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© 2003 Michael Charters
Cneoridium dumosum
click for enlargement
© 2013 Keir Morse

More photos of Cneoridium dumosum in CalPhotos

Geographic subdivisions for Cneoridium dumosum:
s SCo, s ChI (San Clemente Island), PR (exc SnJt)
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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).


View elevation by latitude chart

Data provided by the participants of the  Consortium of California Herbaria.
View all CCH records
All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.

CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time (fruiting time in some monocot genera).