Christen Friis Rottbøll

Metroxylon sagu, the true sago palm, is a species of palm in the genus Metroxylon, native to tropical southeastern Asia. The tree is a major source of sago starch.

Metroxylon is a genus of monoecious flowering plants in the Arecaceae (palm) family, and commonly called the sago palms consisting of seven species. They are native to Western Samoa, New Guinea, the Solomon Islands, the Moluccas, the Carolines and Fiji in a variety of habitats, and cultivated westward to Thailand and Malaya. The name is a combination of two Greek words: metra meaning "womb", commonly translated as "heart" in this context, and xylon meaning "wood", in allusion to the large proportion of pith contained in the plant.

The Arctic poppy (Oreomecon radicata) is a flowering plant in the poppy family. It may also be referred to as rooted poppy or yellow poppy. Arctic poppies grow in cold climate conditions and are found in Arctic regions of Europe. Arctic poppies have adaptations, such as heliotropism and physical characteristics, which help them survive in the harsh environment they grow in.

Nectandra is a genus of plant in the family Lauraceae. They are primarily Neotropical, with Nectandra coriacea being the only species reaching the southernmost United States. They have fruit with various medical effects. Sweetwood is a common name for some plants in this genus.

Kyllinga is genus of flowering plants in the sedge family known commonly as spikesedges. They are native to tropical and warm temperate areas of the world, especially tropical Africa. These sedges vary in morphology, growing to heights from 2.5 centimeters to a meter and sometimes lacking rhizomes. They are closely related to Cyperus species and sometimes treated as part of a more broadly circumscribed Cyperus. The genus was named for the 17th century Danish botanist Peder Lauridsen Kylling. Species include: Kyllinga brevifolia Kyllinga coriacea Kyllinga erecta Kyllinga exigua Kyllinga

Thottea is a genus of flowering plants in the pipevine family, Aristolochiaceae.

Cyperus serotinus is a species of sedge that is native to parts of Europe and Asia. The species was first formally described by the botanist Christen Friis Rottbøll in 1773.

Stellaria humifusa, the saltmarsh starwort, is plant native to northern North America and Eurasia.

Cyperus alopecuroides, commonly known as the foxtail flatsedge, is a sedge of the family Cyperaceae that is native to parts of Africa, Asia and Australia.

Restio is a genus of flowering plants within the family Restionaceae, described in 1772. The entire genus is endemic to the Cape Provinces and KwaZulu-Natal in South Africa. In common with a number of other genera in the Restionaceae, restios are widely cultivated for use as garden ornamentals for their attractive nodular foliage. They are mildly frost hardy.

Ranunculus hyperboreus is a species of flowering plant belonging to the family Ranunculaceae. It is native to Subarctic and Subalpine Northern Hemisphere.

Cyperus surinamensis, also known as the tropical flatsedge, is a sedge of the family Cyperaceae that is native to the Americas.

Cyperus polystachyos, also known as Pycreus polystachyos, and also called manyspike flatsedge in the US, or bunchy sedge, coast flatsedge, many-spiked sedge or Texas sedge in Australia, is a herbaceous species in the family Cyperaceae, widespread in tropical and subtropical areas around the world, sometimes extending its range into temperate regions.

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Ammannia coccinea is a species of flowering plant in the loosestrife family known by several common names, including valley redstem, scarlet toothcup, and purple ammannia. It is native to most of the contiguous United States, with the exception of the Pacific Northwest and New England. It is generally found in moist areas, such as riverbanks and pond margins. It is weedy in some areas. This is an annual herb growing erect to heights approaching one meter or lying along the ground. Leaves are linear in shape, up to 8 centimeters long, and green to shades of deep red in color. The inflorescence

Fuirena, called umbrella sedges or umbrella grasses, are a genus of flowering plants in the sedge family (Cyperaceae), with a worldwide distribution, chiefly in the tropics and temperate zones. They are named for Danish physician and early botanist Georg Fuiren (Jorgen Furenius), 1581–1628.

Cyperus procerus is a species of sedge that is native to parts of Africa, Asia and Australia. The species was first formally described by the botanist Christen Friis Rottbøll in 1773.

Cyperus jeminicus is a species of sedge that is native to parts of Africa, the Middle East and India. The species was first formally described by the botanist Christen Friis Rottbøll in 1773.

Cyperus dubius, the soft sedge, is one of around 700 species of Cyperus in the sedge family, Cyperaceae. It is found throughout in tropical Africa, South India, and Indo-China to Malesia. It grows in seasonally flooded areas and in pockets of soil among rocks. It is not confined to wetlands and is sometimes found as a weed in fields, near the sea on sandy beaches (Cook 1996) and also seen in open shady places.

Cyperus corymbosus is a species of sedge that is endemic to parts of South America, Africa, the Middle East and western Asia. The species was first formally described by the botanist Christen Friis Rottbøll in 1772.

Cyperus conglomeratus is a species of sedge that is native to northern Africa, the Middle East and parts of western Asia. The species was first formally described by the botanist Christen Friis Rottbøll in 1773.

Cyperus sphacelatus is a species of sedge that is native to parts of Africa and Central America and South America. The species was first formally described by the botanist Christen Friis Rottbøll in 1773.

Cyperus pangorei is a species of sedge that is native to parts of Asia. The species was first formally described by the botanist Christen Friis Rottbøll in 1773.

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Rolandra is a genus of flowering plants in the tribe Vernonieae within the family Asteraceae. Species The only species is Rolandra fruticosa, native to Central and South America plus the West Indies. It is also reportedly naturalized in Japan and Java. Formerly included see Ichthyothere Trichospira Rolandra reptans Willd. ex Less. - Trichospira verticillata (L.) S.F.Blake Rolandra septans Willd. ex Less. - Trichospira verticillata (L.) S.F.Blake Rolandra terminalis Spreng. - Ichthyothere terminalis (Spreng.) S.F.Blake

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Cyperus fastigiatus is a species of sedge that is native to South Africa, Eswatini, and Lesotho. The species was first formally described by the botanist Christen Friis Rottbøll in 1773.

Thottea grandiflora is a species of flowering plant in the family Aristolochiaceae. It is native to Myanmar, Thailand, Peninsular Malaysia, and Singapore, where it occurs in lowland and hill forests. The species is a shrub that may reach about 1.2–2 m in height and is notable for its pendulous, bell-shaped flowers, which are dark claret to purple-red with pale veins and are borne near the base of the stem. In Peninsular Malaysia, the plant has been documented in traditional medicine, particularly the root. Modern studies have investigated its phytochemistry and potential pharmacological

Cyperus cruentus is a species of sedge that is native to parts of eastern Africa and the Arabian Peninsula. The species was first formally described by the botanist Christen Friis Rottbøll in 1773.

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