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Extriplex joaquinana

Higher Taxonomy
Family: ChenopodiaceaeView DescriptionDichotomous Key

Habit: 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.
Genera In Family: 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. Note: 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.
eFlora Treatment Author: Mihai Costea, family description, key to genera, revised by Thomas J. Rosatti & Elizabeth H. Zacharias, except as noted
Scientific Editor: Bruce G. Baldwin, David J. Keil, Thomas J. Rosatti.
Genus: ExtriplexView DescriptionDichotomous Key

Habit: 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.
Species In Genus: 2 species: California; Baja California. Etymology: (Latin: beyond or outside Atriplex) Note: Previously included in Atriplex.
eFlora Treatment Author: Elizabeth H. Zacharias, as part of Atriplex

Extriplex joaquinana (A. Nelson) E.H. Zacharias
Habit: Plant 1--10 dm. Leaf: petioled, blade 10--70 mm, fine-scaly in youth, glabrous in age, generally irregularly wavy-dentate, base truncate to tapered; abruptly reduced distally on stems. Seed: +- 1--1.5 mm, dark brown to black. Chromosomes: 2n=18.
Ecology: Alkaline soils; Elevation: < 350(840) m. Bioregional Distribution: NCoRI, GV, CCo, SnFrB, SCoRI (e slope). Flowering Time: Apr--Sep
Synonyms: Atriplex joaquinana A. Nelson; Atriplex joaquiniana, orth. var.
eFlora Treatment Author: Elizabeth H. Zacharias, as part of Atriplex
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory

Previous taxon: Extriplex californica
Next taxon: Grayia

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Citation for this treatment: Elizabeth H. Zacharias, as part of Atriplex 2017. Extriplex joaquinana, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on October 20, 2017.

Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora,, accessed on October 20, 2017.

Extriplex joaquinana
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© 1992 Robert E. Preston, Ph.D.
Extriplex joaquinana
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© 2003 George W. Hartwell
Extriplex joaquinana
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© 2009 Barry Rice
Extriplex joaquinana
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© 2003 George W. Hartwell
Extriplex joaquinana
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© 2013 Janell Hillman
Extriplex joaquinana
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© 2003 George W. Hartwell

More photos of Extriplex joaquinana in CalPhotos

Geographic subdivisions for Extriplex joaquinana:
NCoRI, GV, CCo, SnFrB, SCoRI (e slope).
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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

CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.