Plants & Trees Encyclopedia

Feverfew — Feverfew is a traditional medicinal herb which is found in many old gardens, and is also occasionally grown for ornament; which are then used in Christmas trees. the plant grows into a small bush up to around 18 inches high, with citrus-scented leaves and is covered by flowers reminiscent of daisies. It spreads rapidly, and they will cover …

Fennel — Fennel (Foeniculum vulgare) is a plant species in the genus Foeniculum (treated as the sole species in the genus by most botanists). It is a hardy, perennial, umbelliferous herb, with yellow flowers and feathery leaves, grows wild in most parts of temperate Europe, but is generally considered indigenous to the shores of the Mediterranean, whence it spreads eastwards …

Evening Primrose — Oenothera is a genus of about 125 species of annual, biennial and perennial herbaceous flowering plants, native to North and South America. It is the type genus of the family Onagraceae. Common names include evening primrose, suncups, and sundrops. The species vary in size from small alpine plants 10 cm tall (e.g. O. acaulis from Chile), to …

Eucalyptus — Eucalyptus is a diverse genus of trees (and a few shrubs), the members of which dominate the tree flora of Australia. There are more than seven hundred species of Eucalyptus, mostly native to Australia, with a very small number found in adjacent parts of New Guinea and Indonesia and one as far north as the Philippines islands. Many …

Endive — Endive, Cichorium endivia is a leaf vegetable belonging to the daisy family. Endive can be cooked or used raw in salads. The technique for growing endives was accidentally discovered in the 1830s in the Josaphat valley in Schaerbeek, Belgium. Endive is cultivated for culinary use by cutting the leaves from the growing plant, then keeping the living stem …

Elm — Elms are deciduous and semi-deciduous trees comprising the genus Ulmus, family Ulmaceae, found throughout the Northern Hemisphere from Siberia to Indonesia, Mexico to Japan. Many species and cultivars have also been introduced as ornamentals to parts of the Southern Hemisphere, notably Australasia. Elms have alternate, simple, single- or doubly-serrate leaves, usually asymmetric at the base and acuminate at …

Eggplant — The eggplant, aubergine or brinjal (Solanum melongena) is a plant of the family Solanaceae (also known as the nightshades) and genus Solanum. It bears a fruit of the same name, commonly used as a vegetable in cooking. As a night-shade, it is closely related to the tomato and potato and is native to southern India and Sri Lanka. …

Dutchman’s-Pipe — Aristolochia is a large plant genus with over 500 species. Collectively known as birthworts, pipevines or Dutchman’s pipes, they are the namesake of the family (Aristolochiaceae). They are widespread and occur in the most diverse climates, but they are not native to Australia. Some species, like A. utriformis and A. westlandii, are threatened with extinction. This is a …

Douglas Fir — Douglas-fir is the common name applied to coniferous trees of the genus Pseudotsuga in the family Pinaceae. There are five species, two in western North America, one in Mexico and two in eastern Asia. The Douglas-firs gave 19th century botanists problems due to their similarity to various other conifers better known at the time; they have at …

Dogwood — The Dogwoods comprise a group of 30-50 species of deciduous woody plants (shrubs and trees) in the family Cornaceae, divided into one to nine genera or subgenera (depending on botanical interpretation). Four subgenera are enumerated here. Most species have opposite leaves and a few have alternate. The fruit of all species is a drupe with one or two …