Calycadenia oppositifolia
| Calycadenia oppositifolia | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae
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| (unranked): | Angiosperms
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| (unranked): | |
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| Order: | |
| Family: | |
| Genus: | |
| Species: | C. oppositifolia
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| Binomial name | |
| Calycadenia oppositifolia | |
| Synonyms[1] | |
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Calycadenia oppositifolia is a species of flowering plant in the daisy family known by the common name Butte County western rosinweed. It is native primarily to Butte County, California, although a few populations have been found in other parts of the state.[2] It grows in the foothills of the high mountain ranges.
Description[]
Calycadenia oppositifolia is an annual herb producing an erect, unbranching, hairy stem approaching 30 centimeters (12 inches) in maximum height. The leaves are linear in shape and up to 5 centimeters (2 inches) long, arranged oppositely about the stem. The inflorescence bears bracts coated in large resin glands and dense clusters of flower heads. The hairy, glandular flower head has a center of several disc florets surrounded by a few white or reddish triple-lobed ray florets. Each ray floret has three lobes at the tip, the middle lobe being shortest. The fruit is an achene; those developing from the disc florets have a pappus of scales.[3]
References[]
External links[]
- Jepson Manual Treatment
- United States Department of Agriculture Plants Profile
- photo of herbarium specimen at Missouri Botanical Garden, isotype of Calycadenia oppositifolia/Hemizonia oppositifolia
- Calphotos Photo gallery, University of California
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- Calycadenia
- Endemic flora of California
- Flora of the Sierra Nevada (U.S.)
- Natural history of the California chaparral and woodlands
- Natural history of Butte County, California
- Plants described in 1897
- Taxa named by Edward Lee Greene
- Heliantheae stubs