Heinrich Carl Haussknecht
Trained as a pharmacist, Haussknecht is remembered for collecting and describing numerous species of plants. His botanical explorations took place in Thuringia, Lower Saxony, Greece and the Middle East (the present-day nations of Turkey, Syria, Iraq, Iran), where he discovered, among others Tulipa aleppensis. He established a large herbarium in Weimar, which after his death was placed under the supervision of Joseph Friedrich Nicolaus Bornmüller (1862–1948). In 1949 the "Herbarium Haussknecht" was transferred to the University of Jena.
Haussknecht specialized in the study of the genus Epilobium from the botanical family Onagraceae. In 1884 he published a monograph on the genus called Monographie der Gattung Epilobium. The botanical genus Haussknechtia was named in his honour by Pierre Edmond Boissier (1810-1885).
- This article incorporates information based on a translation of an equivalent article at the Spanish Wikipedia.
- Richard Wilford 2006, Tulips, species and hybrids for the gardener, Portland, Timber Press, 77
- WorldCat Titles Monographie der gattung Epilobium
-  The botanical expeditions and collections of Hofrat Prof. Carl Haussknecht (1838-1903) in Anatolia
- IPNI. Hausskn.
- IPNI List of botanical species described & co-described by Haussknecht