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Cerastium holosteoides

Common Name(s):

Previously known as:

  • Cerastium fontanum ssp. vulgare
  • Cerastium vulgatum L.
Phonetic Spelling
ser-RAS-tee-um hol-os-tee-OY-deez
Description

Mouseear chickweed is in the Caryophyllaceae family.  It is a cool-season annual or short-lived perennial, with distinctly hairy stems and leaves. Leaves are dark green in color, opposite and bluntly pointed. Flowers are very similar to common chickweed, white with 5 split petals. Mouseear chickweed forms dense mats and may climb into crop canopies. Plants are prolific seeders. Seedlings emerge primarily from fall through spring, but in cooler moist areas may continue to emerge throughout the summer. Well managed by most preemergence herbicides labeled for use.

Native from temperate and subarctic Eurasia to New Guinea.

Season: winter annual weed

See this plant in the following landscape:
Cultivars / Varieties:
Tags:
#weed#weedy
 
Cultivars / Varieties:
Tags:
#weed#weedy
  • Attributes:
    Genus:
    Cerastium
    Species:
    holosteoides
    Family:
    Caryophyllaceae
    Life Cycle:
    Annual
    Recommended Propagation Strategy:
    Seed
  • Whole Plant Traits:
    Plant Type:
    Annual
    Weed
    Habit/Form:
    Dense
  • Flowers:
    Flower Color:
    White
    Flower Petals:
    4-5 petals/rays
    Flower Description:
    Flowers are very similar to common chickweed, white with 5 split petals
  • Leaves:
    Leaf Color:
    Green
    Leaf Arrangement:
    Opposite
    Hairs Present:
    No
    Leaf Description:
    Leaves are dark green in color, opposite and bluntly pointed
  • Stem:
    Stem Is Aromatic:
    No
  • Landscape:
    Problems:
    Weedy