Chenopodiaceae


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Chenopodiaceae

[‚kē·nə‚pō·dē′ās·ē‚ē]
(botany)
A family of dicotyledonous plants in the order Caryophyllales having reduced, mostly greenish flowers.

Chenopodiaceae

 

(goosefoot), a family of dicotyledonous plants including grasses, subshrubs, and less commonly, shrubs or small trees. The stems are often juicy and jointed. The leaves are generally alternate and without stipules. The flowers are opaque, apetalous, bisexual or unisexual, and usually regular; they are clustered in small inflorescences, or glomerules, which are then gathered into compound inflorescences. The pistil has two or, less commonly, three to five carpels. The ovary is one-celled and usually superior (rarely, as in the beet, is it half-inferior). The fruit is generally single-seeded and dry, with the remaining perianth forming various growths that are sometimes brilliantly colored. Some species of Chenopodiaceae, such as beets and spinach, have perianth-like bracts that enclose the fruit and grow together to form aggregate fruits. The seed embryos are U-shaped (or ring-like) or spiral.

According to the shape of the embryo, two large groups, or subfamilies, are distinguished—Chenopodioideae and Salsoloideae. The family contains both monoecious and dioecious plants, which usually grow on alkaline soils in deserts, semideserts, and steppes, as well as along seashores. Many species are weeds.

There are approximately 100 genera, comprising 1,500 species, distributed primarily along the shores of the Mediterranean Sea, in the deserts of Asia, Africa and Australia, and on the prairies and pampas of America. Fifty genera, with more than 350 species, are found in the USSR, including beets, spinach, Anabasis, saxaul, goosefoot, and saltwort. Many species are of considerable importance, particularly as feed for livestock in deserts and semideserts.

REFERENCES

Il’in, M. M. “Marevye—Chenopodiaceae Less.” In Flora SSSR, vol. 6. Moscow-Leningrad, 1936.
Ulbrich, E. “Chenopodiaceae.” In Die naturlichen Pflanzenfamilien, 2nd ed., vol. 16c. Leipzig, 1934.

M. E. KIRPICHNIKOV

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Ephedraceae and Chenopodiaceae and the presence of some sclerophyllous
Gramineae are next in importance to Chenopodiaceae in terms of abundance and its pollen is likely to derive from local marsh plants (Bottema 1992).
Gray CES (dru; B) Chenopodiaceae Atriplex acanthocarpa (Torr.
About 7% of the flora is gynomonoecious, with representatives from the Asteraceae, Chenopodiaceae, Cuminia (Lamiaceae), and Lactoris (Lactoridaceae).
from the group Secalinetea), and by species that grow in nitrogen-rich soils subjected to repeated weeding (from the group Chenopodiaceae, usually found amongst leguminous plants and vines, species such as Galium aparine or Chenopodium album) (TABLE 1).
These features have led to the evolution of a vegetation cover dominated by sclerophyllous woodlands and shrublands with eucalypts, casuarinas and phyllodinous acacias, taxa largely confined to the continent, and the more cosmopolitan Chenopodiaceae in saline areas, as major canopy components (Figure 1).
Unisexual flowers appear to have evolved early in the history of the Chenopodiaceae, and Atriplex species are generally considered to be monoecious or dioecious.
1983) and Cane (1989) have enumerated the many species exploited in the eastern and western Central Desert, representing the families Gramineae, Cyperaceae, Leguminosae, Sterculiaceae, Portulacaceae, Malvaceae, Myrtaceae, Stylobasidaceae, Chenopodiaceae.
rachis Wild pulses Astragalus- Astragalus type Wild pulses Fabaceae Diverse Mustard family Brassicaceae wild plants Goosefoot Chenopodiaceae family Sedges Cyperaceae Plantago Thymelaea West Mound Taxa 136 129 116 Barley Hulled barley Hordeum vulgare Naked barley H.
The ground layer was again dominated by buffel grass, but with a significant secondary component of Chenopodiaceae such as galvanised burr (Sclerolaena birchii).
The mainly are Brassicaceae Mauricondiaarvensis, Matthiolafructicolosa and Diplotaxismuralis and Chenopodiaceae Atriplexhalimus, A.