Cornus florida, the flowering dogwood, is a species of flowering tree in the family Cornaceae native to eastern North America and northern Mexico. An endemic population once spanned from southernmost coastal Maine south to northern Florida and west to the Mississippi River. The tree is commonly planted as an ornamental in residential and public areas because of its showy bracts and interesting bark structure.
Geum, commonly called avens, is a genus of about 50 species of rhizomatous perennial herbaceous plants in the rose family and its subfamily Rosoideae, widespread across Europe, Asia, North and South America, Africa, and New Zealand. They are closely related to Potentilla and Fragaria. From a basal rosette of leaves, they produce flowers on wiry stalks, in shades of white, red, yellow, and orange, in midsummer. Geum species are evergreen except where winter temperatures drop below 0 °F (−18 °C). The cultivars 'Lady Stratheden', and 'Mrs J. Bradshaw' have gained the Royal Horticultural Society's Award of Garden Merit.
Powdery mildew is a fungal disease that affects a wide range of plants. Powdery mildew diseases are caused by many different species of ascomycete fungi in the order Erysiphales. Powdery mildew is one of the easier plant diseases to identify, as its symptoms are quite distinctive. Infected plants display white powdery spots on the leaves and stems. The lower leaves are the most affected, but the mildew can appear on any above-ground part of the plant. As the disease progresses, the spots get larger and denser as large numbers of asexual spores are formed, and the mildew may spread up and down the length of the plant.
Geum urbanum, also known as wood avens, herb Bennet, colewort and St. Benedict's herb, is a perennial plant in the rose family (Rosaceae), which grows in shady places in the temperate regions of Eurasia and North America.
Geum aleppicum, commonly called yellow avens or common avens is a flowering plant native to most of the temperate Northern Hemisphere, from eastern Europe across Asia and North America.
Geum quellyon, commonly called scarlet avens, Chilean avens, Double Bloody Mary, or Grecian rose, is a perennial herb in the family Rosaceae. It is native to the central and southern regions of Chile. G. quellyon has been introduced to other countries including Belgium, Bolivia, and the United Kingdom, where it was first planted in 1826.
Geum triflorum, commonly known as prairie smoke, old man's whiskers, torchflower, three-sisters, long-plumed purple avens, lion's beard, or three-flowered avens, is a spring-blooming perennial herbaceous plant of the Rosaceae family. It is a hemiboreal continental climate species that is widespread in colder and drier environments of western North America, although it does occur in isolated populations as far east as New York and Ontario. It is particularly known for the long feathery plumes on the seed heads that have inspired many of the regional common names and aid in wind dispersal of its seeds.
Geum bulgaricum is a species of flowering plant of the genus Geum (avens) in the family Rosaceae. A perennial herbaceous plant, it has small, bell-like yellow flowers, and is native to a few mountains on the Balkan Peninsula.
Geum canadense, the white avens, is a plant in the rose family, Rosaceae. It is widespread across much of Canada, the United States, and Mexico.
Viola reichenbachiana, also known as the early dog-violet, pale wood violet, slender wood violet, hedge violet, or wood dog violet, is a species of flowering plant in the Viola genus. This species hybridises with Viola riviniana, the common dog-violet, to produce Viola × bavarica. The plant is named after the 19th century botanist Ludwig Reichenbach. It is a rhizomatous herbaceous perennial that is widely known for its purple petals, and it typically resides along road banks or among other rich vegetation, as other wild pansies do. The name dog violet refers to its lack of scent, making it supposedly only fit for dogs.
Geum coccineum is a species of flowering plant in the genus Geum, in the rose family Rosaceae. Native to the mountains of the Balkans and northern Turkey, it is also grown ornamentally for its bright red flowers.
Geum montanum, the Alpine avens, is a species of flowering plant of the genus Geum in the Rosaceae family, native to the mountains of central and southern Europe.
Rosa arvensis, the field rose, is a species of wild rose native to Western, Central and Southern Europe.
Rosa tomentosa, otherwise known as the harsh downy-rose, is a species of wild rose. It is a shrub growing to about 3 metres (10 ft). It is found in Asia Minor, the Caucasus, and much of Europe: the British Isles, France, Central Europe, northern Spain, Italy, and the Balkans . On the British Isles it can be found in hedgerows and woodland margins, and it typically flowers between June and July. Further south, in Bulgaria, it flowers in May.
Geum vernum, also known as spring avens, is a herbaceous perennial plant native to the northeastern part of the United States that grows in floodplains and rich woods in the late spring. The species was used to study the fruit evolution in allopolyploid species of Geum and in the preparation of an antimicrobial substance in 1948.
Geum reptans, the creeping avens, is a species of flowering plant in the genus Geum of the family Rosaceae native to some mountains of Central and Southeastern Europe. A long-lived perennial that reproduces both sexually and clonally, it has high phenotypic variation, but these variable traits do not appear to be adaptations to local conditions.
Rosa oxyodon is a species of wild rose native to the Caucasus. It is closely related to Rosa pendulina.
Geum molle is a species of flowering plant of the genus Geum (avens) in the family Rosaceae. A perennial herbaceous plant found on meadows, it is native to the mountains of the Balkan Peninsula and Italy. It blooms with yellow flowers between June and August.
Geum borisii may refer to the following plants of the genus Geum:
