Jepson Herbarium
		University of California, Berkeley

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Shrub, evergreen, much-branched; dioecious.
Stem: bark smooth.
Leaf: opposite, simple, leathery; base jointed; stipules 0.
Inflorescence: staminate flowers in axillary clusters, pistillate generally 1.
Flower: small, radial; sepals generally 5, overlapped, becoming larger in pistillate, disk 0; corolla 0; stamens 8–12, free, anthers elongate with longitudinal slits; ovary superior, chambers 3, styles 3, stigmas long, ± not persistent in fruit.
Fruit: capsule, loculicidal.
Seed: 1.
1 genus: sw US, Mex. [Carlquist 2002 Madroño 49:158–164] Recently shown (e.g., Carlquist 2002) to be not closely related to Buxaceae, in which it was sometimes placed; 2° growth unusual, produced by successive cambia. —Scientific Editor: Thomas J. Rosatti.

1 sp. (T.W. Simmonds, English botanist, died exploring Trinidad, 1767–1804)

Hairs short, dense, appressed, less dense in age.
Stem: 1–2 m; new growth ± hairy; branches stiff.
Leaf: 2–4 cm, oblong-ovate, dull green, subsessile.
Inflorescence: peduncle 3–10 mm.
Flower: staminate sepals 3–4 mm, ± green, pistillate 10–20 mm in age; anthers yellow.
Fruit: ± 1–2.5 cm, nut-like, ovoid, tough, leathery, obtusely 3-angled.
Seed: large, including liquid wax.
2n=26. Creosote-bush scrub, desert wash scrub, chaparral, coastal scrub; < 1350 m. s South Coast, Peninsular Ranges, s Mojave Desert, Sonoran Desert;

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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	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.
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.	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.