Hypericum mutilum
Encyclopedia
Hypericum mutilum is a species of St. John's wort
known by the common name dwarf St. John's wort. It is native to parts of North America, and is present in other parts as an introduced species
. It is an annual or perennial herb taking a multibranched erect form up to about 60 centimeters tall. The oval green leaves are one or two centimeters long and are covered in tiny glands. The inflorescence
is a compound cyme of tiny flowers. Each flower has five yellow to orange-yellow petals 2 millimeters in length and five green sepal
s which are slightly longer. At the center of the flower are many whiskery stamen
s. The fruit is a capsule a few millimeters wide containing many seeds.
Hypericum
Hypericum is a genus of about 400 species of flowering plants in the family Hypericaceae ....
known by the common name dwarf St. John's wort. It is native to parts of North America, and is present in other parts as an introduced species
Introduced species
An introduced species — or neozoon, alien, exotic, non-indigenous, or non-native species, or simply an introduction, is a species living outside its indigenous or native distributional range, and has arrived in an ecosystem or plant community by human activity, either deliberate or accidental...
. It is an annual or perennial herb taking a multibranched erect form up to about 60 centimeters tall. The oval green leaves are one or two centimeters long and are covered in tiny glands. The inflorescence
Inflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Strictly, it is the part of the shoot of seed plants where flowers are formed and which is accordingly modified...
is a compound cyme of tiny flowers. Each flower has five yellow to orange-yellow petals 2 millimeters in length and five green sepal
Sepal
A sepal is a part of the flower of angiosperms . Collectively the sepals form the calyx, which is the outermost whorl of parts that form a flower. Usually green, sepals have the typical function of protecting the petals when the flower is in bud...
s which are slightly longer. At the center of the flower are many whiskery stamen
Stamen
The stamen is the pollen producing reproductive organ of a flower...
s. The fruit is a capsule a few millimeters wide containing many seeds.