Phacelia
| Phacelia | |
|---|---|
| |
| Phacelia tanacetifolia | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Boraginales |
| Family: | Boraginaceae |
| Subfamily: | Hydrophylloideae |
| Genus: | Phacelia Juss. |
| Type species | |
J.F.Gmel.
| |
| Diversity | |
| About 200 species | |
| Synonyms | |
|
Eutoca R.Br. | |
Phacelia (phacelia, scorpionweed, borage family, native to North and South America. California is particularly rich in species with over 90 recorded in the region. [1]
The genus is traditionally placed at
Euasterids I clade. Other botanists[2] continue to recognize the Hydrophyllaceae and Boraginales after analysing the secondary structure of the ITS1 genetic region rather than its sequence for these higher taxonomic levels. This placed Phacelia within the Hydrophyllaceae.[2] Further molecular taxonomic analysis of the Boraginales has divided the Boraginales in two and placed Phacelia among the monophyletic herbaceous Hydrophyllaceae in Boraginales II.[3]
The genus includes both annual and perennial species.honey plants.
There are reports that glandular hairs of stems, flowers and leaves of some species of Phacelia secrete oil droplets that can cause an unpleasant skin rash (
geranylhydroquinone and of P. minor as geranylgeranylhydroquinone.[8]
The mining bee Andrena phaceliae is a specialist pollinator of this genus in the Eastern United States
Selected species
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See also
References
- ^ S2CID 85948949. Retrieved 11 November 2020.
- ^ S2CID 260252906. Retrieved 11 November 2020.
- S2CID 11954615. Retrieved 11 November 2020.
- ^ S2CID 239784768. Retrieved 11 November 2020.
- ^ S2CID 30674931.
- ^ Berry, C. Z., et al. (1962). Dermatitis venenata from Phacelia crenulata. Archives of Dermatology 85(6), 737-39.
- ^ Edgar, Leith. "Service Botanist Discovers Native Colorado Flower". US Fish and Wildlife Service. Retrieved 11 November 2020.
- ^ S2CID 42561206.
Further reading
- Olmstead, R.G.; Kim, K-J.; Jansen, R.K. & Wagstaff, S.J. (2000): The phylogeny of the Asteridae sensu lato based on chloroplast ndhF gene sequences. Mol. Phylogenet. Evol. 16: 96–112.
External links
Wikimedia Commons has media related to Phacelia.
- Panorama of a Phacelia Field (QuickTime required)
