Calycadenia
Encyclopedia
Calycadenia is a genus of plants in the sunflower family
known commonly as the western rosinweeds. These are found in western North America, where six of them are endemic to California, where they are mostly found in the Central Valley. Some species are quite rare. Western rosinweeds are small, ragged annual plant
s bearing numerous heads of small radiate flowers which may be white, yellow, or pinkish.
Species:
Asteraceae
The Asteraceae or Compositae , is an exceedingly large and widespread family of vascular plants. The group has more than 22,750 currently accepted species, spread across 1620 genera and 12 subfamilies...
known commonly as the western rosinweeds. These are found in western North America, where six of them are endemic to California, where they are mostly found in the Central Valley. Some species are quite rare. Western rosinweeds are small, ragged annual plant
Annual plant
An annual plant is a plant that usually germinates, flowers, and dies in a year or season. True annuals will only live longer than a year if they are prevented from setting seed...
s bearing numerous heads of small radiate flowers which may be white, yellow, or pinkish.
Species:
- Calycadenia fremontiiCalycadenia fremontiiCalycadenia fremontii is a species of flowering plant in the daisy family known by the common name Frémont's western rosinweed . It is native to northern California and Oregon, where it is a common member of the flora in several types of habitat in the mountains, foothills, and valleys. This annual...
- Fremont's western rosinweed - Calycadenia hooveriCalycadenia hooveriCalycadenia hooveri is a species of flowering plant in the daisy family known by the common name Hoover's western rosinweed. It is endemic to the Sierra Nevada foothills of central California, where it grows in rocky areas in the hills....
- Hoover's western rosinweed - Calycadenia micranthaCalycadenia micranthaCalycadenia micrantha is an uncommon species of flowering plant in the daisy family known by the common name small-flowered calycadenia. It is endemic to California, where it is known from about 13 occurrences that are widely spread over several counties, including Napa, Trinity, and Monterey...
- small-flowered calycadenia - Calycadenia mollisCalycadenia mollisCalycadenia mollis is a species of flowering plant in the daisy family known by the common name soft western rosinweed. It is endemic to central California, where it grows in a number of habitat types in the Central Valley and adjacent Sierra Nevada foothills. This is an annual herb producing an...
- soft western rosinweed - Calycadenia multiglandulosaCalycadenia multiglandulosaCalycadenia multiglandulosa is a species of flowering plant in the daisy family known by the common name sticky western rosinweed. It is native to central California, where it is a common member of the flora in a number of habitat types. Its range extends into western Nevada. This is an annual herb...
- sticky western rosinweed - Calycadenia oppositifoliaCalycadenia oppositifoliaCalycadenia oppositifolia is a species of flowering plant in the daisy family known by the common name Butte County western rosinweed. It is endemic to Butte County, California, where it grows in the foothills of the high mountain ranges. This is an annual herb producing an erect, unbranching,...
- Butte County western rosinweed - Calycadenia paucifloraCalycadenia paucifloraCalycadenia pauciflora is a species of flowering plant in the daisy family known by the common name smallflower western rosinweed. It is endemic to northern California, where it grows in the Coast Ranges north of the San Francisco Bay Area. This is an annual herb producing a slender, crooked,...
- smallflower western rosinweed - Calycadenia spicataCalycadenia spicataCalycadenia spicata is a species of flowering plant in the daisy family known by the common name spiked western rosinweed. It is endemic to central California, where is a common grassland plant in the Central Valley and adjacent Sierra Nevada foothills. This is an annual herb producing a hairy,...
- spiked western rosinweed - Calycadenia truncataCalycadenia truncataCalycadenia truncata is a species of flowering plant in the daisy family known by the common name Oregon western rosinweed. It is native to Oregon and northern and central California, where is a common plant in several types of habitats. This is an annual herb producing an erect stem, reddish in...
- Oregon western rosinweed - Calycadenia villosaCalycadenia villosaCalycadenia villosa is a species of flowering plant in the daisy family known by the common name dwarf western rosinweed. It is endemic to central California, where it is known from a limited distribution in the Central Coast Ranges from southern Monterey County to northern San Luis Obispo County....
- dwarf western rosinweed