Jepson eFlora: Taxon page
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Dirca occidentalis
WESTERN LEATHERWOOD

Higher Taxonomy
Family: ThymelaeaceaeView Description 

Common Name: DAPHNE FAMILY
Habit: Shrub [herb, tree, vine], often ill-smelling, poisonous. Stem: erect, flexible, branched, generally with raised, woody leaf scars; bark fibrous, tear-resistant, often green and/or +- white, at least in patches, especially when young. Leaf: simple, alternate [opposite, +- whorled], pinnately veined, entire, petioled; stipules +- 0. Inflorescence: axillary cluster [umbel, spike, raceme, or flowers 1]. Flower: bisexual [not], [3]4[6]-parted; hypanthium tubular or funnel- to bell-shaped, corolla-like; calyx lobes overlapped or not, or +- 0; petals small, alternate sepals; stamens [2,4]8[many]; disk generally present; ovary superior [1/2-inferior], 1-chambered, 1-ovuled, style 1, stigma dot-like. Fruit: berry [capsule]. Seed: 1.
Genera In Family: +- 50 genera, 750 species: worldwide, especially Australia, tropical Africa; some cultivated (Daphne, Edgeworthia), weedy (Thymelaea).
eFlora Treatment Author: Lorin I. Nevling, Jr. & Kerry Barringer
Scientific Editor: Thomas J. Rosatti.
Genus: DircaView Description 

Common Name: LEATHERWOOD
Leaf: deciduous; broad-ovate to obovate; petioles covering buds. Inflorescence: nodding. Flower: open with or before leaves; calyx lobes short; petals minute, +- scale-like, included, forming a ring; filaments +- = style, exserted. Fruit: fleshy.
Species In Genus: 4 species: temperate North America, Mexico. Etymology: (Greek: name from mythology)

Dirca occidentalis A. Gray
NATIVE
Stem: 1--3 m, silky-hairy in youth. Leaf: petioles 3--6 mm; blade 2--7 cm, silky-hairy, base, tip rounded. Inflorescence: 1--4 flowered. Flower: short-pedicelled; hypanthium yellow. Fruit: 8--10 mm, yellow-green, glabrous. Chromosomes: 2n=36.
Ecology: Generally north or northeast facing slopes, mixed-evergreen forest to chaparral, generally in fog belt; Elevation: 50--400 m. Bioregional Distribution: SnFrB. Flowering Time: Nov--Mar
eFlora Treatment Author: Lorin I. Nevling, Jr. & Kerry Barringer
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory

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Citation for this treatment: Lorin I. Nevling, Jr. & Kerry Barringer 2016. Dirca occidentalis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=23143, accessed on April 29, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on April 29, 2016.


Dirca occidentalis
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© 2015 Neal Kramer
Dirca occidentalis
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© 2009 Lech Naumovich
Dirca occidentalis
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© 2016 Aaron Schusteff
Dirca occidentalis
click for enlargement
© 2016 Neal Kramer
Dirca occidentalis
click for enlargement
© 2008 Neal Kramer
Dirca occidentalis
click for enlargement
© 2016 Aaron Schusteff

More photos of Dirca occidentalis in CalPhotos


Geographic subdivisions for Dirca occidentalis:
SnFrB.
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.