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CHENOPODIACEAE GOOSEFOOT FAMILY

Mihai Costea, family description, key to genera, revised by Thomas J. Rosatti & Elizabeth H. Zacharias

Annual to shrub; hairs simple, stellate, or glandular; plants in several genera scaly, mealy, or powdery from collapsed glands; monoecious, dioecious, with bisexual flowers, or with both bisexual and unisexual flowers. Stem: occasionally fleshy. Leaf: blade simple, generally alternate, occasionally fleshy or reduced to scales, veins pinnate; stipules 0. Inflorescence: raceme, spike, catkin-like, spheric head, axillary clusters of flowers, or flowers 1; bracts 0–5, herbaceous, generally persistent or strongly modified in fruit, wings, tubercles or spines present or 0. Flower: bisexual or unisexual, small, generally green; calyx parts (1)3–5, or 0 in pistillate flowers, free or fused basally (or ± throughout), leaf-like in texture, membranous, or fleshy, deciduous or not, often strongly modified in fruit; corolla 0; stamens 1–5, opposite sepals, filaments free, equal; anthers 4-chambered; ovary superior (1/2-inferior), chamber 1; ovule 1; styles, stigmas 1–4 (or stigmas sessile). Fruit: achene or utricle, generally falling with persistent calyx or bracts. Seed: 1, small, lenticular to spheric; seed coat smooth to finely dotted, warty, net-like, or prickly, margin occasionally winged.
100 genera, 1500 species: worldwide, especially deserts, saline or alkaline soils; some cultivated for food (Beta vulgaris subsp. vulgaris, beet, Swiss chard; Spinacia oleracea L., spinach; Chenopodium quinoa Willd., quinoa); and some worldwide, naturalized ruderal or noxious agricultural weeds. Nitrophila treated in Amaranthaceae, Sarcobatus treated in Sarcobataceae. Key to genera revised by Elizabeth H. Zacharias to incorporate Extriplex and Stutzia, 2 genera segregated from Atriplex. —Scientific Editors: Bruce G. Baldwin, David J. Keil, Thomas J. Rosatti.

Key to Chenopodiaceae

EXTRIPLEX

Elizabeth H. Zacharias

Monoecious annual or perennial herb, generally scaly. Leaf: alternate or proximal-most opposite, distal ± reduced; blade entire to variously dentate; non-Kranz. Inflorescence: mixed and axillary, or staminate and/or pistillate flowers (mostly) terminal in dense or interrupted spikes or panicles. Staminate inflorescence: bract 1 per flower. Pistillate inflorescence: bracts 2 per fruit, enlarged in age, free to variously fused, generally compressed, sessile, entire, falling with fruit. Staminate flower: calyx lobes 4; stamens 4. Pistillate flower: calyx 0; stigmas 2. Seed: erect.
2 species: California; Baja California. (Latin: beyond or outside Atriplex) [Zacharias & Baldwin 2010 Syst Bot 35(4):839–857.] Previously included in Atriplex.

Key to Extriplex

E. californica (Moq.) E.H. Zacharias CALIFORNIA ORACH
NATIVE
Plant < 3 dm, < 8 dm wide; taproot thick, ± fleshy; monoecious. Stem: ± many from base; branches decumbent to ascending. Leaf: proximal opposite; blade 5–24 mm, entire, gray-scaly, base acute. Seed: ± 2 mm, black.
2n=18. Sandy soils, coastal dunes, sea bluffs, scrub, salt marshes; < 200 m. s North Coast, Central Coast, South Coast, Channel Islands; Baja California. [Atriplex californica Moq.] Apr–Oct [Online Interchange]

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Nov 27 2014
Citation for this treatment: [Author of taxon treatment] 2013. Extriplex, Revision 1, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=95361, accessed on Nov 27 2014

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Geographic subdivisions indicated for the distribution of Extriplex californica 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.