Cerastium arvense

Cerastium arvense
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Core eudicots
Order: Caryophyllales
Family: Caryophyllaceae
Genus: Cerastium
Species: C. arvense
Binomial name
Cerastium arvense
L.

Cerastium arvense is a species of flowering plant in the pink family known by the common names field mouse-ear[1] and field chickweed.[2] It is a widespread species, occurring throughout Europe and North America, as well as parts of South America. It is a variable species. There are several subspecies, but the number and defining characteristics are disputed.[3]

The five white petals are 7.5 to 9 mm long, deeply bilobate with round tips. At the center are ten yellow stamens and five styles.

Description

Cerastium arvense is a perennial herb growing up to 30[3] to 45[4] centimeters tall. It takes the form of a mat, clump, creeper, or upright flower, and may grow from a taproot or tangled system of rhizomes. It is usually somewhat hairy in texture, often with glandular hairs. The leaves are linear, lance-shaped, or oblong, and a few centimeters in length. The inflorescence may consist of a single flower to a dense cluster of many. The flower has five white petals, each with two lobes, and five hairy green sepals at the base. The fruit is a capsule up to 1.5 centimeters long with ten tiny teeth at the tip. It contains several brown seeds.

References

  1. ↑ "Cerastium arvense (Field Mouse-ear)". Online Atlas of the British and Irish flora. Retrieved 16 July 2014.
  2. ↑ "Cerastium arvense L.". USDA. Retrieved 16 July 2014.
  3. ↑ 3.0 3.1 Flora of North America
  4. ↑ Jepson Manual Treatment

External links