Weed Identification in Christmas Trees
Christmas trees
Field crops
Fruit
Home and yard
Nursery and landscape
Turfgrass
Vegetable
Diagnostic Services ● Soil/Plant Nutrient Lab ● Enviro-weather ●Regional IPM Center ● Pesticide safety ● Organic: New Ag Network ● Invasive species ●Sustainable ag & food systems
MSU ANR departments ● MSU Extension ● Site index ●Contacts/permissions
| Wild mustard - Sinapis arvensis L. | |||||||||
| Home > wild mustard | |||||||||
|
Life cycle: Erect winter or summer annual. Flowers and fruit: Bright yellow flowers with four petals are found in terminal clusters. Fruit are 1- to 2-inch-long, cylinder-shaped capsules with a four-angled beak at the tip that contain round, black to purple seeds. Stems: Erect, up to 3-foot-tall stems bolt from a basal rosette to flower. Stems are bristly hairy at the base, often branched and nearly hairless at the top. Leaves: Seedlings have smooth, kidney-shaped cotyledons and prominently veined, bristly hairy leaves that initially develop from a basal rosette. Lower leaves are irregularly lobed and toothed with petioles; upper leaves are alternate, stalkless to short-stalked with coarsely toothed margins and pointed tips, gradually becoming smaller toward the top. Reproduction: Seeds. |
||||||||
|
|||||||||
Email the web developer.