| |
 Appearance:
Butter and eggs is a 1-2' high perennial forb with multiple
erect stems growing from rootstocks. Leaves:
Alternate, smooth, long narrow leaves, 1/2-1 1/2" long. Flower:
Bright yellow flowers with a long spur are arranged in an elongated
cluster of 15-20 flowers along each stem. Blooming time is from
mid-July until late September. Seed:
Small seeds are easily dispersed by wind and water and stay viable
in the soil for up to 8 years. Root:
Root buds form on the taproot and lateral roots. Spreads also vegetatively,
root fragments the size of 1/2" are capable of producing a new plant.
|
This plant has the ability
to adapt to various site conditions. In Minnesota it grows on gravelly
to sandy soil along roadsides, railroad yards, waste places, dry fields,
pastures and croplands. It competes well against less aggressive native
species in gravelly and sandy soils; its capability to also spread
vegetatively is largely responsible for its invasive behavior. It
presents a problem in prairie reconstruction projects, once it has
established itself. Butter and eggs is a serious problem in Alberta and
is on the state noxious weed list in New Mexico and Arizona. This
plant was introduced into North America as an ornamental from the
steppes of Europe and Asia in the 1700s, and is still commercially
available. |
 Weeds
of Nebraska and the Great Plains, James Stubbendieck and Geir Friisoe,
Nebraska Department of Agriculture, 1994/95.Southwest Exotic Plant
Mapping Program www.usgs.nau.edu/swemp/Info_pages/plants/Linaria/
|
 |
|
