Northern Prairie Wildlife Research Center
Aquatic and Wetland Vascular Plants of the Northern Great Plains
Chenopodium L. -- Goosefoot
Erect to spreading, taprooted annuals with simple to freely branched stems
and alternate, petiolate leaves, the blades somewhat fleshy, lanceolate
to ovate-oblong or trullate to deltate, sinuate-dentate to sinuate-lobed, seldom
entire, occasionally hastate, sometimes farinose, especially on the lower surface.
Flowers perfect, very minute and numerous, ca. 0.5 mm across at anthesis,
greenish or sometimes reddish-tinged, densely clustered in glomerules which
are borne in short terminal and axillary spikes, the spikes bracteate
throughout with the bracts reducing in size upward; perianth 2- to 5-lobed,
the segments rather fleshy, obtuse, often incurved over the fruit; stamens
1-5; styles 2(3), short. Fruit oriented horizontally or vertically
to the persistent perianth, sometimes both horizontal and vertical, the thin
membranous perianth loosely adherent to the lenticular seed.
The two chenopods treated here are consistently encountered on alkaline
to saline shores and mudflats. Other weedy species such as Chenopodium
berlandieri Moq. and C. strictum Roth are occasional on dry shores
but are more typical of disturbed upland habitats.
Aellen, P. and T. Just. 1943. Key and synopsis of the American species
of the genus Chenopodium L. Amer. Midl. Naturalist 30:47-76.
Wahl, H. A. 1952-1953 (1954). A preliminary study of the genus Chenopodium
in North America. Bartonia 27:1-46.
||Leaves persistently whitish-farinose on the lower
surface, dull green above, mostly 0.7-3 cm long, 0.2-1.2 cm wide.
||Leaves not whitish-farinose at maturity, green on
both surfaces, often reddish-tinged, drying dark, mostly 2-8 cm long,
0.7-5 cm wide
12. Chenopodiaceae, the Goosefoot Family
2. Chenopodium L. -- Goosefoot
- 1. Chenopodium glaucum L. -- Oak-leaved
- 2. Chenopodium rubrum L. -- Red
Return to Family -- Chenopodiaceae - The Goosefoot
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