Machaeranthera is a genus of flowering plants in the daisy family which are known by the common name tansyaster. Tansyasters are variable in appearance. Some are small singular wildflowers while others are sprawling shrubs. Several species easily hybridize with each other as well, making identification difficult. In general, members of the genus may be identified by the sharp-pointed, dagger-shaped anthers in the disc florets at the center of the flower. The flower heads are usually daisylike and are usually a shade of purple or blue, but may be pink, yellow, or white. Tansyasters are native to western North America.
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Gentiana is a genus of flowering plants belonging to the Gentian family (Gentianaceae), tribe Gentianeae and monophyletic subtribe Gentianinae. This a large genus, with about 400 species.
Gaultheria is a genus of about 170-180 species of shrubs in the family Ericaceae. The name memorializes M. Hugues Gauthier of Quebec, a mis-spelt honour bestowed by the Scandinavian Pehr Kalm in 1748. These plants are native to Asia, North and... more >>>
Ochna is a genus comprising 86 species of evergreen trees, shrubs and shrublets belonging to the family Ochnaceae. These species are native to tropical woodlands of Africa or Asia. Species of this genus are usually called Ochnas or... more >>>
Backhousia is a small genus of five species of flowering plants in the family Myrtaceae, native to the rainforests of eastern Australia. They are aromatic shrubs or trees growing to 5-25 m tall, with evergreen leaves 3-12 cm long and 1-6 cm... more >>>
Oncidium, abbreviated as Onc in horticultural trade, is a genus that contains about 330 species of orchids from the subfamily Epidendroideae of the orchid family (Orchidaceae). This is a complex, difficult genus, with many species being... more >>>
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