Zschack's Goosefoot, more...Zschack's goosefoot
[Chenopodium acerifolium Andrz., moreChenopodium berlandieri f. pedunculare Aellen, Chenopodium berlandieri subsp. platyphyllum (Issler) Ludwig, Chenopodium berlandieri subsp. zschackei (Murr) A. Zobel, Chenopodium berlandieri subsp. zschackii (J. Murr) Zobel, Chenopodium berlandieri var. farinosum (Ludwig) Aellen, Chenopodium berlandieri var. zschackii (J. Murr) J. Murr ex Aschers., Chenopodium zschackei Murr]
Leaf blades deltate or rhombic, 1.7-4 cm, 3-lobed, margins usually toothed above basal lobes. Inflorescences erect, with leafy bracts. Styles with yellow area at base. Seeds 1.2-1.5 mm diam. Fruiting fall. Yards, flower beds, highways, oceanic bluffs, sandy washes; 0-2200 m; Alta., B.C., Man., N.W.T., Ont., Que., Sask., Yukon; Alaska, Ariz., Ark., Calif., Colo., Fla., Idaho, Ill., Ind., Iowa, Kans., Ky., La., Mass., Minn., Mo., Nebr., Nev., N.Mex., N.C., N.Dak., Ohio, Okla., Oreg., Pa., S.C., S.Dak., Tex., Utah, Wash., W.Va., Wis., Wyo.
Annual herb 10 cm - 1 m tall Stem: white-mealy to a varying degree. Leaves: alternate, stalked, 1.7 - 4 cm long, diamond-shaped or triangular, three-lobed, toothed above basal lobes, white-mealy to a varying degree. Inflorescence: a dense, irregularly rounded cluster of flowers (glomerule), which together form an upright spike with leafy bracts. Flowers: greenish, small, with five nearly distinct sepals and no petals. Sepals broadly wing-keeled, white-mealy. Stamens five. Styles with yellow at the base. Stigmas two. Fruit: one-seeded (achene or utricle), sometimes enclosed in the persistent, incurved sepals, light yellowish around style, depressed egg-shaped, thin-walled. Wall (pericarp) not closely fitting to the seed, honeycomb-like. Seed brown, 1 - 1.5 mm wide, round, round-margined, honeycomb-like.
Similar species: No information at this time.
Flowering: late June to mid-October
Habitat and ecology: Introduced from Europe. A weed of cultivated and waste ground.
Occurence in the Chicago region: non-native
Etymology: Chenopodium comes from the Greek words chen, meaning goose, and podion, meaning "little foot," referring to the leaf shape of some species. Berlandieri is named after Jean Louis Berlandier (1805-1851), the botanist who discovered the species.
Author: The Morton Arboretum
From Flora of Indiana (1940) by Charles C. Deam
This species and the following [Chenopodium bushianum] are characterized by the peculiar alveolar depressions of their seeds, distinguishing them well from other species. The whole group however is quite polymorphic.
Indiana Coefficient of Conservatism: C = 0
Wetland Indicator Status: