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Photographer: Hugh H. Iltis
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Family Brassicaceae
Brassica nigra (L.) W.D.J.Koch
black mustard
Brassica: Latin name for "cabbage"
nigra: Latin for "black"
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| Status: | Introduced - naturalized |
| Plant: | erect, annual, 6"-60" tall forb; stems with rough hairs toward the base, smooth and hairless above |
| Flower: | yellow, 4-parted, 1/4" wide; inflorescence a rounded cluster (raceme) of stalked flowers; blooms June-Sept. |
| Fruit: | 1/2"-3/4" long, thin, erect, 4-angled pod lying near the stem |
| Leaf: | stalked, not clasping, oval; lower leaves often lobed, upper leaves toothed |
| Habitat: | disturbed sites, fields |
| (Glossary) |
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