Biology

Valeriana officinalis Valeriana officinalis- Description of Valerian and a photograph of the flower in its natural habitat on the Isle of Skye. Valeriana sp. Valeriana sp.- image Valeriana sp. Valeriana sp.- image Plectritis ciliosa Plectritis ciliosa- image Fedia cornucopiae Fedia cornucopiae- image Centranthus ruber Centranthus ruber- Photographs and a description of Red Valerian which often grows on walls and cliffs. Urtica diocia: Stinging Nettle Urtica diocia: Stinging Nettle- A number of photographs of the flowers and leaves of this species, and its identifying features. Urtica dioica: Nettle Urtica dioica: Nettle- Description and several photographs of the stinging nettle, with information on its herbal properties, uses in traditional medicine, the chemicals it contai… Urtica urens: Annual Nettle Urtica urens: Annual Nettle- A description of this species of disturbed ground with a number of photographs. Urtica rupestris Urtica rupestris- image Urtica sp. Urtica sp.- image Urera baccifera Urera baccifera- Description and photographs of this bush, its leaves, flowers and stem. Soleirolia soleirolii Soleirolia soleirolii- General information and classification. Pipturus albidus Pipturus albidus- image Pipturus albidus Pipturus albidus- image Pipturus albidus Pipturus albidus- image Pilea mollis Pilea mollis- General information and classification. Pilea depressa Pilea depressa- General information and classification. Pilea cadierei Pilea cadierei- General information and classification. Pilea serpyllacea Pilea serpyllacea- General information and classification. Pilea repens Pilea repens- General information and classification. Pilea nummulariifolia Pilea nummulariifolia- General information and classification. Pilea Pilea- Images and descriptions of 3 species. Pilea microphylla Pilea microphylla- image Pellionia daveauana Pellionia daveauana- General information and classification. Pellionia Pellionia- Description and image. Parietaria diffusa: Wall Pellitory Parietaria diffusa: Wall Pellitory- Photograph of this species, which grows on old walls, and its identifying features. Neraudia melastomifolia Neraudia melastomifolia- image Fleurya havanensis Fleurya havanensis- Photographs and description of this plant with stinging hairs. Fleurya interrupta Fleurya interrupta- Information on this species from the Pacific Island Ecosystems at Risk project (PIER). Boehmeria cylindrica Boehmeria cylindrica- Smallspike false nettle. Boehmeria nivea Boehmeria nivea- A plant profile for the Chinese Grass or White Ramie. Boehmeria cylindrica Boehmeria cylindrica- Image of plant in flower. Zelkova serrata: Japanese Zelcova Zelkova serrata: Japanese Zelcova- Tree identification fact sheet with photos of the leaf, flower, fruit, twig, bark and form. Zelkova crenata Zelkova crenata- Photo of this species. Ulmus thomasii: Rock Elm Ulmus thomasii: Rock Elm- Tree identification fact sheet with photos of the leaf, flower, fruit, twig, bark and form. Ulmus rubra: Slippery Elm Ulmus rubra: Slippery Elm- Tree identification fact sheet with photos of the leaf, flower, fruit, twig, bark and form. Ulmus pumila: Siberian Elm Ulmus pumila: Siberian Elm- Tree identification fact sheet with photos of the leaf, flower, fruit, twig, bark and form. Ulmus parvifolia: Chinese Elm Ulmus parvifolia: Chinese Elm- Tree identification fact sheet with photos of the leaf, flower, fruit, twig, bark and form. Ulmus alata: Winged Elm Ulmus alata: Winged Elm- Tree identification fact sheet with photos of the leaf, flower, fruit, twig, bark and form. Ulmus rubra Ulmus rubra- Distribution and Occurrence; Value and Use; Characteristics; Fire Ecology Ulmus glabra: Wych Elm Ulmus glabra: Wych Elm- Photographs of this tree, its leaves and fruit. The Return of the Elm The Return of the Elm- Discusses the status of elms in the U.S. nursery industry in 2000, including the availability of new disease-resistant cultivars of American elm, Asian and … Ulmus canescens Ulmus canescens- image Ulmus procera Ulmus procera- image About Elm Trees About Elm Trees- Descriptions of ten species of Ulmus, how to identify different species, basic biology of the genus, and advice on caring for elms in the landscape. Trema orientalis Trema orientalis- image Trema orientalis Trema orientalis- image Trema orientalis Trema orientalis- image Trema orientalis Trema orientalis- image