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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

CYCLOLOMA WINGED PIGWEED

G. Frederic Hrusa & Dieter H. Wilken


1 sp. (Greek: circular wing, from calyx in fruit) [Mosyakin 2003 FNANM 4:264–265]

C. atriplicifolium (Spreng.) J.M. Coult.
NATURALIZED
Annual 12–75 cm, many-branched, rounded. Stem: spreading, slender, striate, finely long-shaggy-hairy to tomentose, generally glabrous in age. Leaf: gradually reduced distally on stem; petiole 0–12 mm; blade 5–65 mm, lanceolate to ovate, wavy-dentate; densely to sparsely long-shaggy-hairy, generally glabrous in age. Inflorescence: panicle-like, terminal, open in fruit; bracts 0; flowers sessile. Flower: bisexual or pistillate; calyx enclosing fruit, 2–3 mm diam in fruit, round-winged, lobes 5, ± keeled; stamens 5; ovary densely, finely tomentose, style deeply 2–3-lobed. Fruit: ± 2 mm diam. Seed: 1.5–2 mm diam, lens-shaped, long-shaggy-hairy, horizontal, dull black.
2n=36. Fields, disturbed areas, generally sandy; < 1250 m. Great Central Valley, s South Coast, w Peninsular Ranges, Mojave Desert; Canada to northern Mexico; native to central North America. May–Sep [Online Interchange]
Unabridged synonyms: [Salsola atriplicifolia Spreng.]

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Jul 30 2014
Citation for this treatment: [Author of taxon treatment] 2013. Cycloloma, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=21623, accessed on Jul 30 2014

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Bioregions in which Cycloloma atriplicifolium 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.
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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.