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| Jepson eFlora: Taxon page
Key to families | Table of families and genera |
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Indexes to all accepted names and synonyms: | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | |
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Annual to shrub; hairs simple, stellate or glandular; plants generally scaly, mealy, or powdery from collapsed glands; generally monoecious.
Stem: occasionally fleshy.
Leaf: blade simple, generally alternate, occasionally fleshy or reduced to scales, veins pinnate; stipules 0.
Inflorescence: raceme, spike, catkin-like, spheric heads, 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, green; calyx parts (1)3–5, or 0 in pistillate flowers, free or fused basally, leaf-like in texture, membranous or fleshy, deciduous or not, generally strongly modified in fruit; corolla 0; stamens 1–5, opposite to calyx parts, filaments free, equal; anthers 4-chambered; ovary superior (1/2-inferior), chamber 1; ovule 1; styles, stigmas 1–4.
Fruit: achene or utricle, generally 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. —Scientific Editors: Douglas H. Goldman, Bruce G. Baldwin.
Annual or perennial herb, glabrous or powdery.Key to Chenopodium
Stem: branches 0 to generally erect ( spreading).
Leaf: generally petioled; blade linear to deltate or diamond-shaped, entire to lobed or toothed, reduced distally on stem; proximal leaves generally early- deciduous.
Inflorescence: spheric clusters or flower 1, in spikes, or panicle-like, generally dense; bracts generally 0; flowers generally sessile.
Flower: sepals generally 5, fused or not, persistent, flat to keeled; stamens generally 5; stigmas 2(5).
Fruit: enclosed or subtended by calyx; fruit wall membranous or papery, free or attached to seed and generally loosening in age.
Seed: vertical or horizontal, lenticular to ± spheric, red-brown to black; wall thin.
± 100 species: temperate; some cultivated for food or grain. (Greek: goose foot, from leaf shape of some species) [Clemants & Mosyakin 2003 FNANM 4:275–299] Fr generally required for identification. Other species in TJM (1993) now treated in Dysphania.
Unabridged references: [Crawford 1975 Brittonia 27:279–288; Wahl 1954 Bartonia 27:1–46]
Unabridged note: Powder on plants from small, inflated hairs.
Annual 10–50(70) cm.
Leaf: blade 15–90 mm, deltate to ± diamond-shaped, entire to deeply toothed, glabrous, base generally tapered.
Inflorescence: clusters ± spheric, 3 mm wide, in axillary branched spikes.
Flower: sepals generally 3(4), fused only at base, lobes lanceolate to elliptic, flat (keeled) abaxially, generally glabrous to sparsely powdery; ± enclosing fruit; stamens 2–3.
Fruit: 0.5–1 mm diam; wall free from seed.
Seed: vertical and occasionally horizontal, ± red.
2n=18. [Online Interchange]
Unabridged note: There are Consortium records that, if verified, would voucher elevations up to 3749 m. The following accessions, if verified, would represent range extensions (as indicated): RSA628355, UCSB38558 (SCoRO); RSA578128, RSA578129, RSA594394, RSA552598, RSA562622, RSA64798, UCR84563 (WTR); UCR95529, RSA279020, RSA596176 (SnGb); RSA519124, UCR64137, UCR82481, UCR94193, POM172190, RSA315153, RSA338389, RSA340131, RSA478561, UCR109850 (SnBr); UCR122337, UCR59671, UCR163987 (PR).
Previous taxon: Chenopodium pratericola
Next taxon: Chenopodium rubrum var. humile
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].
Copyright © 2012 Regents of the University of California
We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.
| 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. |
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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.
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