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Thlaspi arvense (common name field penny-cress) is a foetid Eurasian plant having round flat pods; naturalized throughout North America. It is also related to the Lepidium species in the cabbage family.
Use as a source of biodiesel
Pennycress is being developed as an oilseed crop for production of renewable fuels. The species can be planted in the fall, will germinate and form a vegetative mass which can overwinter. In the spring, the oil-rich seed can be harvested and used as a biodiesel feedstock.
Pennycress is related to the model plant species Arabidopsis thaliana. Researchers have begun studying the genetics of pennycress in order to improve its potential use as a biofuel crop. For example, the transcriptome of pennycress has been sequenced. 
- Arvegenix LLC website
- Field pennycress shows feedstock potential
- De novo assembly of the pennycress (Thlaspi arvense) transcriptome provides tools for the development of a winter cover crop and biodiesel feedstock. Kevin M. Dorn, Johnathon D. Fankhauser, Donald L. Wyse, M. David Marks. The Plant Journal. doi:10.1111/tpj.12267
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