| Cephalanthus | |
|---|---|
 | |
| Cephalanthus occidentalis | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Gentianales |
| Family: | Rubiaceae |
| Subfamily: | Cinchonoideae |
| Tribe: | Naucleeae |
| Genus: | Cephalanthus L. |
| Type species | |
| Cephalanthus occidentalis | |
| Synonyms | |
Cephalanthus is a genus of flowering plants in the family Rubiaceae. There are about six species that are commonly known as buttonbush. [1] [2]
They are shrubs or small trees growing to 5–15 m (16–49 ft) tall. The leaves are simple, arranged in opposite pairs or whorls of three. The flowers form a dense globular inflorescence.
Cephalanthus occidentalis is native to the eastern United States and Canada. The others occur in tropical regions of the Americas, Africa and Asia. [3] Two species are known in cultivation. [4]
Cephalanthus was named by Linnaeus in Species Plantarum in 1753. [5] The generic name is derived from the Ancient Greek words κέφαλη (kephale), meaning "head", and ἄνθος (anthos), meaning "flower". [6]
Cephalanthus is the most basal genus in the tribe Naucleeae. [7] Some authors have segregated it into its own monotypic tribe. [8] The type species is Cephalanthus occidentalis . [9]
16 fossil mericarps of †Chephalanthus pusillus have been described from middle Miocene strata of the Fasterholt area near Silkeborg in Central Jutland, Denmark. [12]
Uncaria is a genus of flowering plants in the family Rubiaceae. It has about 40 species. Their distribution is pantropical, with most species native to tropical Asia, three from Africa and the Mediterranean and two from the neotropics. They are known colloquially as gambier, cat's claw or uña de gato. The latter two names are shared with several other plants. The type species for the genus is Uncaria guianensis.
Saccharum is a genus of tall perennial plants of the broomsedge tribe within the grass family.
Stachys is a genus of plants, one of the largest in the mint family Lamiaceae. Estimates of the number of species vary from about 300, to about 450. Stachys is in the subfamily Lamioideae and its type species is Stachys sylvatica. The precise extent of the genus and its relationship to other genera in the subfamily are poorly known.
Cyperus is a large genus of about 700 species of sedges, distributed throughout all continents in both tropical and temperate regions.
Sparganium (bur-reed) is a genus of flowering plants, described as a genus by Linnaeus in 1753. It is widespread in wet areas in temperate regions of both the Northern and Southern Hemispheres. The plants are perennial marsh plants that can grow to 3.5 m, with epicene flowers.
Clethra is a genus of flowering shrubs or small trees described as a genus by Linnaeus in 1753.
Cephalanthus occidentalis is a species of flowering plant in the family Rubiaceae that is native to eastern and southern North America. Common names include buttonbush, common buttonbush, button-willow, buck brush, and honey-bells.
Nauclea is a genus of flowering plants in the family Rubiaceae. The species are evergreen trees or shrubs that are native to the paleotropics. The terminal vegetative buds are usually strongly flattened. The generic name is derived from the Ancient Greek words naus, meaning "ship" and kleio, meaning "to close". It refers to the resemblance of the cells of the capsule to a ship's hull.
Volkameria is a genus of flowering plants in the family Lamiaceae. It is pantropical in distribution. Many of the species are found in coastal habitats.
Vitex is a genus of flowering plants in the sage family Verbenaceae. It has about 250 species. Common names include chaste tree or chastetree, traditionally referring to V. agnus-castus, but often applied to other species, as well.
Clerodendrum is a genus of flowering plants formerly placed in the family Verbenaceae, but now considered to belong to the Lamiaceae (mint) family. Its common names include glorybower, bagflower and bleeding-heart. It is currently classified in the subfamily Ajugoideae, being one of several genera transferred from Verbenaceae to Lamiaceae in the 1990s, based on phylogenetic analysis of morphological and molecular data.
Oldenlandia is a genus of flowering plants in the family Rubiaceae. It is pantropical in distribution and has about 240 species. The type species for the genus is Oldenlandia corymbosa.
Guettarda is a plant genus in the family Rubiaceae. Most of these plants are known by the common name velvetseed.
Lasianthus is a genus of flowering plants in the family Rubiaceae. They are tropical subshrubs, shrubs, or rarely, small trees. They inhabit the understory of primary forests.
Rondeletia is a genus of flowering plants in the family Rubiaceae. It is endemic to the Neotropics. There are around 160 species.
Hedyotis (starviolet) is a genus of flowering plants in the family Rubiaceae. Many species of this genus such as Hedyotis biflora, H. corymbosa and H. diffusa are well known medicinal plants. Hedyotis is native to tropical and subtropical Asia and to islands of the northwest Pacific. It comprises about 115 species. The type species for the genus is Hedyotis fruticosa.
Adina is a genus of 11 species of flowering plants in the family Rubiaceae. They are shrubs or small trees, native to East Asia and Southeast Asia.
Neonauclea is a genus of flowering plants in the family Rubiaceae. It comprises about 71 species. Neonauclea is a genus of shrubs and trees They are indigenous to China, India, Southeast Asia, Wallacea, New Guinea and Australia.
Naucleeae is a tribe of flowering plants in the family Rubiaceae and contains about 183 species in 24 genera. Species belonging to Naucleeae occur from Australasia, tropical Asia, Madagascar, tropical Africa, and to the Neotropics and North America.
Hypobathrum is a genus of flowering plants belonging to the family Rubiaceae.
| Authority control databases: National |
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