Lindernia hyssopoides

References

1. [1]Flora of China — Missouri Botanical Garden Press; St. Louis. · 1994 · http://flora.huh.harvard.edu/china/ ↩︎An excellent, comprehensive resource in 25 volumes. In addition to the botanical information the flora also gives basic information on habitat and some uses. An on-line version is also available.
2. [2]A Handbook to the Flora of Ceylon — Trimen H.; continued by Hooker J.D. · Dulau and Co; London. · 1898 · http://www.biodiversitylibrary.org ↩︎Very dated, but still a useful work. It can be downloaded from the Internet.
3. [3]IUCN Red List of Threatened Species — http://www.iucnredlist.org/ ↩︎A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
4. [4]Plant Resources of Southeast Asia — http://proseanet.org/ ↩︎Lots of information on the uses of the plants of SE Asia.