Chenopodium album

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"Fat hen" redirects here, "fat hen" may also refer to the version of the Federal Eagle in the Bundestag.
iChenopodium album

Scientific classification
Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Caryophyllales
Family: Amaranthaceae
Genus: Chenopodium
Binomial name
Chenopodium album
L.

Chenopodium album (Fat Hen; also called white goosefoot, lamb's quarters, lambsquarters, or pigweed), is a fast-growing, upright, weedy annual species of goosefoot, very common in temperate regions, growing almost everywhere in soils rich in nitrogen, especially on wasteland. Its pollen can contribute to hayfever-like allergies. It tends to grow upright at first, reaching heights of 30-80 cm, but typically becomes recumbent after flowering (due to the weight of the foliage and seeds) unless supported by other plants.

close-up of flower and flower bud
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close-up of flower and flower bud

The opposite leaves can be very varied in appearance. The first leaves, near the base of the plant, are toothed and roughly diamond-shaped, 3-7 cm long and 3-6 cm broad. The leaves on the upper part of the flowering stems are entire and lanceolate-rhomboid, 1-5 cm long and 0.4-2 cm broad. The leaves are waxy-coated, unwettable and mealy in appearance, with a whitish coat on the underside.

The tiny flowers are radially symmetrical and grow in small cymes on a dense branched inflorescence 10-40 cm long.

The species has a very complex taxonomy and has been divided in numerous microspecies, subspecies and varieties, but it is difficult to differentiate between them. Published names and synonyms include C. album var. microphyllum, C. album var. missouriense, C. album var. stevensii, C. album subsp. striatum, C. acerifolium, C. centrorubrum, C. giganteum, C. jenissejense, C. lanceolatum, C. pedunculare and C. probstii. It also hybridises readily with several other Chenopodium species, including C. berlandieri, C. ficifolium, C. opulifolium, C. strictum and C. suecicum.

[edit] Uses

Fat Hen can be eaten as a vegetable, either steamed in entirety, or the leaves cooked like spinach as a leaf vegetable. Each plant produces tens of thousands of black seeds. These are very nutritious, high in protein, vitamin A, calcium, phosphorus, and potassium. Quinoa is a closely related species grown specifically for its seeds.

As the common name suggests, it is also a very good feed (both the leaves and the seeds) for chickens (hens) and other poultry.

It is more commonly regarded as a weed; the most serious problem is that it can be a host to the beet leafhopper, an insect which transmits curly top virus to beet crops. Frequent mowing usually controls the weed as it tends to grow upright.

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