Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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CHENOPODIACEAE

GOOSEFOOT FAMILY

Dieter H. Wilken, except as specified

Annual to tree, sometimes monoecious or dioecious, glandular or with bead-like hairs that collapse with age, becoming scaly or powdery
Stem often fleshy
Leaves generally alternate, entire to lobed; veins generally pinnate
Inflorescence: raceme, spike, catkin-like, or spheric cluster, or flower 1; bracts 0–few
Flower: sepals 1–5, often 0 in pistillate flowers, free or fused, generally persistent in fruit; petals 0; stamens 0–5; ovary generally superior, chamber 1, ovule 1, styles 1–3
Fruit: generally utricle
Seed 1, vertical (fruit compressed side-to-side) or horizontal (fruit compressed top-to-bottom)
Genera in family: 100 genera, 1300 species: worldwide, especially deserts, saline or alkaline soils; some cultivated for food (Beta , beets, chard; Chenopodium , quinoa)
Recent taxonomic note: Recently treated in expanded Amaranthaceae

CHENOPODIUM

PIGWEED, GOOSEFOOT

Annual or perennial herb, glabrous, glandular, or powdery
Stem: branches 0 to generally ± spreading
Leaves generally petioled, linear to deltate, entire to lobed, reduced upward; base generally tapered
Inflorescence: spheric clusters, spikes, or panicle-like, generally dense; bracts generally 0; flowers generally sessile
Flower: calyx segments generally 5, fused or not, persistent, flat to keeled; stamens generally 5; ovary lenticular to spheric, stigmas 2–5
Seed vertical or horizontal, red-brown to black; wall very thin
Species in genus: ± 150 species: temp; some cultivated for food or grain
Etymology: (Greek: goose foot, from leaf shape of some)
Reference: [Wahl 1954 Bartonia 27:1–46; Crawford 1975 Brittonia 27:279–288]
Fr generally required for identification.

Native

C. desiccatum A. Nelson

Annual 12–35 cm
Stems generally several from base
Leaf: blade 5–25 mm, oblong to elliptic, ± fleshy, margin entire, lower surface densely powdery, ± glabrous above
Flower: sepals enclosing fruit, keeled, powdery
Fruit ± 1 mm diam; wall free from seed
Seed horizontal
Chromosomes: 2n=18
Ecology: Uncommon. Open places, scrub, coniferous forest
Elevation: < 2900 m.
Bioregional distribution: Sierra Nevada, San Joaquin Valley, Transverse Ranges, Great Basin Floristic Province, n Mojave Desert
Distribution outside California: to Wyoming, Colorado
Flowering time: Jul–Sep

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bioregional map for CHENOPODIUM%20desiccatum being generated
 
N.B. The distribution depicted here differs from that given in The Jepson Manual (1993)
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Chenopodium desiccatum
Retrieve dichotomous key for Chenopodium
Overlay Consortium of California Herbaria specimen data by county on this map
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