Calycadenia villosa

Calycadenia villosa
Calycadenia villosa
herbarium specimen
Conservation status

Imperiled (NatureServe)
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Genus: Calycadenia
Species: C. villosa
Binomial name
Calycadenia villosa
DC.

Calycadenia 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.[1] There are perhaps 16 occurrences.[2] This is an annual herb producing a very hairy erect stem approaching 40 centimeters in maximum height. The leaves are linear in shape and up to 5 centimeters long. The inflorescence is made up of clusters of flower heads surrounded by gland-tipped bracts. Each flower head is a hairless bunch of small disc florets and 1 to 4 white to pink ray florets. Each ray floret has three lobes, the middle lobe being narrowest. The fruit is an achene; those developing from disc florets bear a pappus of scales.

References

  1. ^ Center for Plant Conservation
  2. ^ The Nature Conservancy

External links

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