Plants 400

The 25th July 2021 marks 400 years of botanical research and teaching by the University of Oxford.

As a celebration and count-down to this anniversary, the University of Oxford Botanic Garden and Harcourt Arboretum, together with the Oxford University Herbaria and the Department of Plant Sciences, is highlighting 400 plants of scientific and cultural significance.

From November 24th 2013, one plant will be profiled each week. Press release


The project can be followed on Twitter @Plants400 and on the specially created website at This web portal will act as a database to enable people to find out more about each featured plant and to see images of it growing in the Botanic Garden or Harcourt Arboretum, or preserved as a valuable specimen in one of the University Herbaria.


You can also hear all about the weeks featured plant on BBC Radio Oxfords "Garden Cafe" Sunday lunchtime programme.


Plant No 1 Taxus baccata - the English yew

Plant No 2 Cinnamonum verum - cinnamon tree

Plant No 3 Picea abies - Christmas tree

Plant No 4 Buxus sempervirens - box

Plant No 5 Commiphora saxicola - rock corkwood

Plant No 6 Sequoiadendron giganteum - giant redwood

Plant No 7 Lithops species - living stones

Plant No 8 Hamamelis virginiana - witch hazel

Plant No 9 Isoetes echinospora - spring quillwort

Plant No 10 Araucaria angustifolia - Parana pine

Plant No 11 Aloe vera - aloe vera  Listen to an audio clip about the aloe vera

Plant No 12 Encephalartos ferox Listen to an audio clip about the Encephalartos ferox

Plant No 13 Stachyurus praecox Listen to an audio clip about the Stachyurus praecox

Plant No 14 Gossypium sp. Listen to an audio clip about the Gossypium arboreum

Plant No 15 Coffea arabica Listen to an audio clip about the coffee plant

Plant No 16 Citrus medica Listen to an audio clip about the Citrus medica

Plant No 17 Daphne Mezereum

Plant No 18 Marchantia polymorpha

Plant No 19 Tillandsia usneoides

Plant No 20 Gleditsia triacanthos

Plant No 21 Pleurococcus sp.