Plants of the World Online (POWO) is an online taxonomic database published by the Royal Botanic Gardens, Kew.
Plants of the World Online (POWO) is an online taxonomic database published by the Royal Botanic Gardens, Kew.
Senecio is a genus of flowering plants in the daisy family (Asteraceae) that includes groundsels and some ragworts. Variously circumscribed taxonomically, the genus Senecio is one of the largest genera of flowering plants. Plants of the World Online currently accepts 1482 species.
Hickory is a common name for trees composing the genus Carya, which includes 19 species accepted by Plants of the World Online.
Seven species are native to southeast Asia in China, Indochina, and northeastern India (Assam), and twelve are native to North America. A number of hickory species are used for their edible nuts or for their wood.
Rafflesia (/rəˈfliːz(i)ə, -ˈfliːʒ(i)ə, ræ-/), or stinking corpse lily, is a genus of parasitic flowering plants in the family Rafflesiaceae. The species have enormous flowers, the buds rising from the ground or directly from the lower stems of their host plants; one species has the largest flower in the world. Plants of the World Online lists up to 41 species from this genus; all of them are found in Southeast Asia.
Western Europeans first learned about plants of this genus from French surgeon and naturalist Louis Deschamps when he was in Java between 1791 and 1794; but his notes and illustrations were seized by the British in 1798 and were not available to Western scientists until 1861. The first British person to see one was Joseph Arnold in 1818, in the Indonesia rainforest in Bengkulu, Sumatra, after a Malay servant working for him discovered a flower and pointed it out to him. The flower, and the genus, was later named after Stamford Raffles, the leader of the expedition and the founder of the British colony of Singapore.
The following is a list of all 1556 species and 69 hybrids in the flowering plant genus Rubus which are accepted by Plants of the World Online as of August 2025.
Echinopsis is a genus of cacti native to South America, sometimes known as hedgehog cactus, sea-urchin cactus or Easter lily cactus. As of November 2025, Plants of the World Online used a broad circumscription of the genus, resulting in about 80 accepted species, ranging from large and treelike types to small globose cacti. The name derives from echinos hedgehog or sea urchin, and opsis appearance, a reference to these plants' dense coverings of spines.
They are remarkable for the great size, length of tube, and beauty of their flowers, borne upon generally small and dumpy stems.
Metaxya is a neotropical genus of ferns in the order Cyatheales. It is the only genus in the family Metaxyaceae in the Pteridophyte Phylogeny Group classification of 2016 (PPG I). Alternatively, the genus may be placed in the subfamily Metaxyoideae of a more broadly defined family Cyatheaceae, the family placement used in Plants of the World Online as of November 2019.
The species of the genus are characterized by large fronds that approach 8 ft (2.5 m) in length.
Cibotium (from Greek κιβώτιον, kibṓtion, "little chest" or "box"), also known as manfern, is a genus of 11 species of tropical tree ferns. It is the only genus in family Cibotiaceae in the Pteridophyte Phylogeny Group classification of 2016 (PPG I). Alternatively, the family may be treated as the subfamily Cibotioideae of a very broadly defined family Cyatheaceae, the family placement used for the genus in Plants of the World Online as of November 2019.
Culcita is a genus of ferns, native to the Americas, Macaronesia and Iberian Peninsula. It is the only genus in the family Culcitaceae in the Pteridophyte Phylogeny Group classification of 2016 (PPG I). Alternatively, the family may be treated as the subfamily Culcitoideae of a very broadly defined family Cyatheaceae, the placement used for the genus in Plants of the World Online as of November 2019.
Amherstia nobilis (Burmese: သော်ကကြီး [θɔ̀ka̰ dʑí]; the Pride of Burma) is a tropical tree growing to about 15 metres (49 ft) in height with large, showy flowers. It is the only member of the genus Amherstia. It is widely cultivated for ornament in the humid tropics, but is extinct in the wild, only being known from a single wild specimen which was recorded in 1865. It is thus potentially endemic in Burma (Myanmar), hence the common name, though Plants of the World Online also cites it as native in adjoining Thailand. The scientific name commemorates Lady Amherst, (as does Lady Amherst's pheasant) and also her daughter Sarah. Another common name, orchid tree, is also used for members of the genus Bauhinia.