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.


The project can be followed on Twitter @Plants400 and at, which will enable people to find out more about each featured plant. Images of these plants growing in the Botanic Garden or Harcourt Arboretum, or preserved as a valuable specimen in one of the University Herbaria are also included.


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


Plant No 79: Passiflora alata - wing-stemmed passionflower

Plant No 78: Mateuccia struthiopteris - ostrich fern

Plant No 77: Acer carpinifolium - hornbeam-leaved maple

Plant No 76: Vicia faba - broad bean

Plant No 75: Calycanthus floridus - Carolina allspice

Plant No 74: Primula auricula - bear's ears

Plant No 73: Strongylodon macrobotrys - jade vine

Plant No 72: Capsella bursa-pastoris - shepherd's purse

Plant No 71: Barnadesia caryophylla

Plant No 70: Erythronium dens-canis - dog's tooth violet

Plant No 69: Trifolium dubium - lesser hop trefoil

Plant No 68: Forsythia spp. - forsythia

Plant No 67: Ananas comosus - pineapple

Plant No 66: Theobroma cacao - cocoa

Plant No 65: Nostoc sp. - star jelly

Plant No 64: Sciadopitys verticillata - Japanese umbrella pine

Plant No 63: Garrya elliptica - silk tassle bush

Plant No 62: Psilotum nudum - whisk fern

Plant No 61: Cyclamen species - sowbread

Plant No 60: Hevea brasiliensis - rubber

Plant No 59: Semele androgyna - climbing butcher's broom

Plant No 58: Monstera deliciosa - Swiss cheese plant

Plant No 57: Musa textilis - manilla hemp

Plant No 56: Piper nigrum - pepper

Plant No 55: Viscum album - mistletoe

Plant No 54: Dieffenbachia seguine - dumb cane

Plant No 53: Salvinia molesta - salvinia

Plant No 52: Saccharum officinarum - sugar

Plant No 51: Metasequoia glyptostroboides - dawn redwood

Plant No 50: Equisetum sp. - horsetail

Plant No 49: Fraxinus excelsior - common ash

Plant No 48: Rosmarinus officinalis - rosemary

Plant No 47: Ptelea trifoliata - hop tree

Plant No 46: Acer saccharum

Plant No 45: Brassica oleracea - cabbage

Plant No 44: Helianthus annuus - sunflower

Plant No 43: Ricinus communis - castor oil plant

Plant No 42: Simmondsia chinensis - jojoba

Plant No 41: Chara spp. - stonewort

Plant No 40: Zingiber officinale - ginger

Plant No 39: Aristolochia clematitis - birthwort

Plant No 38Allium cepa - onion

Plant No 37: Galium tricornutum - corn cleavers

Plant No 36: Artemisia annua - annual wormwood

Plant No 35Rosa canina - dogrose

Plant No 34Nepenthes rajah - giant Bornean pitcher plant

Plant No 33: Dianthus caryophyllus - Fairchild's mule

Plant No 32Taraxacum sp. - dandelion

Plant No 31Victoria cruziana - Amazonian waterlily

Plant No 30Lathyrus odoratus - sweet pea

Plant No 29Heliconia rostrata - hanging lobster claw

Plant No 28Senecio squalidus - Oxford ragwort Listen to an audio clip about the Senecio

Plant No 27Paulownia tomentosa - princess tree Listen to an audiio clip about the Paulownia

Plant No 26Urtica dioica - stinging nettle Listen to an audio clip about nettles

Plant No 25Euphorbia characias - Mediterranean spurge Listen to an audio clip about the Euphorbia

Plant No 24Heliamphora nutans

Plant No 23Laurus nobilis - bay

Plant No 22Tulipa sylvestris - wild tulip Listen to an audio clip about the Tulipa

Plant No 21Pleurococcus sp. Listen to an audio clip about the Pleurococcus

Plant No 20Gleditsia triacanthos - honey locust Listen to an audio clip about the Gleditsia

Plant No 19Tillandsia usneoides - Spanish moss Listen to an audio clip about the Tillandsia

Plant No 18Marchantia polymorpha - liverwort Listen to an audio clip about the Marchantia

Plant No 17Daphne Mezereum - mezereon Listen to an audio clip about the Daphne

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

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

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

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

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

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

Plant No 10Araucaria angustifolia - Parana pine

Plant No 9Isoetes echinospora - spring quillwort

Plant No 8Hamamelis virginiana - witch hazel

Plant No 7Lithops species - living stones

Plant No 6Sequoiadendron giganteum - giant redwood

Plant No 5Commiphora saxicola - rock corkwood

Plant No 4Buxus sempervirens - box

Plant No 3Picea abies - Christmas tree

Plant No 2Cinnamonum verum - cinnamon tree

Plant No 1Taxus baccata - the English yew