Flower NameBiden laevis
Formal NameBidens laevis
AliasBidens, 菊咲き栴檀草, Smooth beggartick, larger bur-marigold
Biden laevis or commonly called as Smooth beggartick or Winter cosmos (scientific name: Biden laevis) is native to North America, Mexico and Guatemala, and is a cold-resistant perennial / annual grass of the family Asteraceae. From the early summer to the winter, five petals such as yellow, pink, yellow on the white background, yellow circles on the yellow background, etc. will bloom. It is the origin of flower name that flowers resemble cosmos, scientific name:Cosmos bipinnatus , and they are also blooming in winter. However, winter cosmos is a plant of the genus Biden, whereas cosmos is a cosmos belonging to the family Asteraceae. "Biden" in the genus name means "Bi (2) +" den (tooth) "in Latin, due to the presence of two toothy hard thorns in the seed. This barb is caught in the clothing of animals and people, so it is called "stick insect". The species name "laevis" is Latin, meaning "smooth". The language of flowers is "patience."
Common name: Winter cosmos, Scientific name: Biden laevis, aka: Smooth beggartick, Bidens, larger bur-marigold, Chrysanthemum senganguanga, Country of Origin: North America, plant height: 30 to 100 cm, well branched, leaf order: viable, leaf shape: feathered double leaf (lanceolate form, linear lanceola form) , Flower color: yellow · white · white and yellow, flower size: 3 ~ 5 cm, flowering period: June ~ December, fruit type: sliced fruit shape, fruit shape: stick shape, fruit quality: hard and has 2 spines and it becomes "sticking insect", use: for ornamental.
Flower typeActinomorphic Flower
Petal shapecapitate corolla
Leaf typepinnately compound
Flowering placePlain/fleet Garden
SeasonJun Jul Aug Sep Oct Nov Dec
Height30 ~ 100 [cm]
Diameter3 ~ 5