Native to Europe and Asia and now widely established throughout North America, Rorippa sylvestris can be confused with the native annual Bog Yellow-cress (Rorippa palutris). Creeping Yellow-cress however is a perennial, forming dense colonies, its flowers are over twice the size of R. palustris, and its mature fruit longer and more slender. All ...

Rorippa sylvestris (the creeping yellowcress, [1] keek, or yellow fieldcress; syn. Radicula sylvestris (L.) Druce [2]) is an invasive species [3] of plant in the United States, likely entering from Europe before 1818 from ballast water and spreading throughout North America through contaminated nursery seed stock.

Yellow fieldcress (in the Brassicaceae family) is a perennial weed that spreads by creeping, white, fleshy roots which produce many new plants. Flowers are yellow. Plants can spread by small root fragments, less than 1 inch in length, entangled in roots of nursery stock.

Native to Europe and southwest Asia, creeping yellow-cress is an invader that is extremely difficult to eradicate. This weed is frequently carried into the country on the roots of imported ornamental plants. Anthropogenic (man-made or disturbed habitats), shores of rivers or lakes.

All You should know about Creeping Yellowcress (Rorippa sylvestris) > how to care and characteristics 🌱 PlantIn 🌿 Our best expert are here for your plants!

Common Names: Creeping yellow fieldcress, yellow fieldcress, keek Description: First discovered in the Great Lakes region in 1884 near Lake Ontario. Habit: Herbaceous, growing to about 0.7 ft. tall. Leaves: Young plants form basal rosettes. Lower leaves are oblong, up to 8 in. long and 0.75 in. wide with a compound look.

It is fairly easy to distinguish Creeping Yellow Cress from other Yellow Cresses because it has the largest flowers (at least ¼" across). It also has widely spreading pedicels and siliques that are longer and more slender than other Yellow Cresses.

Creeping Yellow Cress. Family: Brassicaceae (Cruciferae) (The Mustard Family) Genus: Rorippa | Species: sylvestris. Description: The leaves of this plant are distinct. They are lance-shaped or oblong, and similar to dandelion leaves. The upper leaves are deeply cut or toothed. The flowers are bright yellow in color, up to 1/4″ wide.

Creeping Yellow Cress. Genus species: Rorippa sylvestris: Common Name: Creeping Yellow Cress Family Name: Brassicaceae . Annual, biennial, and perennial herbs; leaves usually alternate; flowers bisexual, regular (4-petaled, with 6 stamens--- 4 long and 2 short), in racemes; seed capsules two-parted.

R. sylvestris is a yellow-flowered perennial species, 15-60 cm tall, that generally develops thick white tap-roots and storage roots from a basal 'crown' immediately below the rosette leaves. Sometimes it also produces additional very slender, horizontal, creeping roots which are branched off from the vertical tap-root and help the plant to ...