|
Deinandra fasciculata
Deinandra fasciculata (syn: Hemizonia fasciculata), known by the common names clustered tarweed[1] and fascicled spikeweed,[2] is a species of flowering plant in the family Asteraceae native to western North America.[3] RangeDeinandra fasciculata is native to Baja California and California (primarily from San Diego County to Monterey County, including several of the Channel Islands; Calflora reports a few collections from the San Francisco Bay area, but these are from urban areas and probably represent cultivated specimens).[4] It is a common member of coastal grassland habitats in the California chaparral and woodlands ecoregion and other habitats.[3] DescriptionDeinandra fasciculata is a thin-stemmed branched annual herb growing erect up to 100 cm (40 inches) in height. The upper leaves are narrow, about 1 centimeter long nested against the stem (more like short needles than leaves). The lower leaves are much bigger, up to 15 centimeters (6 inches) long.[5] Each flower head has a center of six yellowish disc florets with black stamens surrounded by five yellow ray florets. The ray florets generally have three teeth, the central tooth being the smallest.[3] Plants flower in May through October.[4] In this genus the disk flowers are actually big enough to be seen as tiny flowers to the naked eye.  The plant has a tar-like smell.[6] EcologyDeinandra fasciculata is pollinated by bees, and the seeds are primarily gravity-dispersed (they fall from the seed heads when mature). Seeds may also be dispersed by the many bird and small mammal species which eat them.[6][7] This species may hybridize with other members of its genus, as well as with Hemizonia and Centromadia species.[6] References
External links
Information related to Deinandra fasciculata |
||||||||||||||||||||||||||||||||
