Coreopsis maritima
Encyclopedia
Coreopsis maritima is a plant species
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...

 of the genus Coreopsis in Asteraceae. Coreopsis species are commonly called tickseeds. This species is a perennial that grows 10–40 cm tall but sometimes to 80 cm (4 to 32 inches). Plants bloom in late winter to early summer, with normally one or two flower heads per stem, on 15 to 30 cm long peduncle
Peduncle (botany)
In botany, a peduncle is a stem supporting an inflorescence, or after fecundation, an infructescence.The peduncle is a stem, usually green and without leaves, though sometimes colored or supporting small leaves...

s, but sometimes 4 or more flowers can be found per stem. Coreopsis maritima has foliage that is lobed and mostly linear
Linear
In mathematics, a linear map or function f is a function which satisfies the following two properties:* Additivity : f = f + f...

 in shape with lobes that are 5–30 mm long and 1–2 mm wide. The 12–20 mm long flower phyllaries number 12–13, sometimes more, and they are lanceolate shaped. Flower heads have 16-21 ray florets typically and the laminae are 20–35+ mm long. The disc corollas are 5.5–7 mm long. Cypselae or fruit
Fruit
In broad terms, a fruit is a structure of a plant that contains its seeds.The term has different meanings dependent on context. In non-technical usage, such as food preparation, fruit normally means the fleshy seed-associated structures of certain plants that are sweet and edible in the raw state,...

s, are 6-7 mm long and oblong-rectangular in shape.

Coreopsis maritima is native to southern California
California
California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

 and Baja California
Baja California
Baja California officially Estado Libre y Soberano de Baja California is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is both the northernmost and westernmost state of Mexico. Before becoming a state in 1953, the area was known as the North...

, where it grows on ocean bluffs and on adjacent islands.

Synonyms: Tuckermannia maritima Nuttall.

Upper Taxa: Coreopsis Linnaeus sect. Tuckermannia also written as C. sect. Tuckermannia and Coreopsis sect. Tuckermannia

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK