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Vascular Plants of California
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Kochia americana


Higher Taxonomy
Family: ChenopodiaceaeView DescriptionDichotomous Key
Common Name: GOOSEFOOT FAMILY
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: KochiaView DescriptionDichotomous Key


Habit: Annual to subshrub, generally erect, glabrous to tomentose. Leaf: alternate or lower +- opposite, +- thread-like to lanceolate, flat to cylindric, fleshy or not. Inflorescence: spikes, simple or branched; bracts leaf-like; flowers 1--7 per axil. Flower: bisexual or pistillate, sessile; calyx lobes 5, incurved, keeled; tubercled, winged or not in fruit; stamens 5; stigmas 2--3. Fruit: +- compressed-spheric. Seed: horizontal.
Species In Genus: +- 15 species: western North America, Eurasia. Etymology: (Wilhelm D. Koch, German physician, botanist, 1771--1849) Note: Native species recently treated in Neokochia, Kochia scoparia in Bassia.
eFlora Treatment Author: G. Frederic Hrusa & Dieter H. Wilken
Reference: Chu & Sanderson 2008 Madroño 55:251--256
Kochia americana S. Watson
NATIVE
Habit: Subshrub 8--40 cm, root-sprouting. Stem: many from base, generally simple, ascending to erect, generally finely white-tomentose, occasionally glabrous in age. Leaf: 5--20 mm, 1--2 mm wide, generally overlapping, +- cylindric to flat, +- fleshy, glabrous to spreading-long-hairy; vein obscure or 1. Inflorescence: flowers 1--3 per axil; bracts 4--15 mm, 0.5--1 mm wide, generally ascending, spreading in age. Flower: calyx lobes generally white-tomentose, wings fan-shaped, in fruit < 2 mm. Fruit: < 4 mm wide.
Ecology: Alkaline soils, flats, dry lake margins; Elevation: 600--2200 m. Bioregional Distribution: GB, DMoj; Distribution Outside California: to Washington, Montana, Texas. Flowering Time: May--Aug
Unabridged Synonyms: Kochia americana var. vestita S. Watson; Kochia vestita (S. Watson) Rydb.; Neokochia americana (S. Watson) G.L. Chu & S.C. Sand.
Jepson eFlora Author: G. Frederic Hrusa & Dieter H. Wilken
Reference: Chu & Sanderson 2008 Madroño 55:251--256
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

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Botanical illustration including Kochia americana

botanical illustration including Kochia americana

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Citation for this treatment: G. Frederic Hrusa & Dieter H. Wilken 2012, Kochia americana, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=29939, accessed on June 25, 2022.

Citation for the whole project: Jepson Flora Project (eds.) 2022, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on June 25, 2022.

Kochia americana
click for enlargement
© 2015 Steve Matson
Kochia americana
click for enlargement
© 2015 Steve Matson
Kochia americana
click for enlargement
© 2015 Steve Matson
Kochia americana
click for enlargement
© 2015 Steve Matson
Kochia americana
click for enlargement
© 2015 Steve Matson

More photos of Kochia americana in CalPhotos



Geographic subdivisions for Kochia americana:
GB, DMoj
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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).





 

Data provided by the participants of the  Consortium of California Herbaria.
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Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time (fruiting time in some monocot genera).