Seeds perfectly cleaned with great difficulty, brown to black or gray, when imperfectly cleaned, slightly flatted on two sides, circular or round, kidney-shaped, sometimes with a hem-like margin, on one side a faint groove from the margin to near the center of the face, .6-.8 mm. in diameter. Introduced from Europe. Not prominent.

Fig 49. [Oak-leaved Goosefoot. Chenopodium glaucum] L.

Oak-leaved Goosefoot. Chenopodium glaucum L. Concerning the different stages of cleaning note remarks above under C. album.

Seeds brown to black, more or less slightly granular, shining, flattened on two sides, circular edge bluntly rounded, with a single notch from which on one side extends a slight depression toward the center of the face, .5-.8 mm. in diameter. Introduced from Europe. Occasional on moist soil.

Fig 50. [Maple-leaved Goosefoot. Chenopodium hybridum] L.

Maple-leaved Goosefoot. Chenopodium hybridum L. Concerning the different stages of cleaning, note remarks above under C. album.