Cyathella Decne. (1838), non Brot. (1804), fungal name.
Cynoctonum E.Mey. (1838), nom. illeg.
Decanemopsis Costantin & Gallaud (1906)
Dicarpophora Speg. (1926)
Drepanostemma Jum. & H.Perrier (1911)
EnsleniaNutt. (1818), nom. illeg.
Exostegia Bojer ex Decne. (1844)
Flanagania Schltr. (1894)
Folotsia Costantin & Bois (1908)
Gilgia Pax (1894)
Glossonema Decne. (1838)
Graphistemma (Chapm. ex Benth.) Champ. ex Benth. (1876)
Holostemma R.Br. (1810)
Karimbolea Desc. (1960)
Mahafalia Jum. & H.Perrier (1911)
Mastostigma Stocks (1852)
MellichampiaA.Gray ex S.Watson (1887)
Metalepis Griseb. (1866)
Metaplexis R.Br. (1810)
Monostemma Turcz. (1848)
Nematostemma Choux (1921)
NematurisTurcz. (1848)
Odontanthera Wight (1838)
Pentarrhinum E.Mey. (1838)
Perianthostelma Baill. (1890)
Petalostemma R.Br. (1814), nom. nud.
Platykeleba N.E.Br. (1895)
Prosopostelma Baill. (1890)
Psanchum Neck. (1790), opus utique oppr.
Pycnoneurum Decne. (1838)
Raphistemma Wall. (1831)
Rhodostegiella(Pobed.) C.Y.Wu & D.Z.Li (1990)
Roulinia Decne. (1844), nom. illeg.
Rouliniella Vail (1902)
Sarcocyphula Harv. (1863)
Sarcostemma R.Br. (1810)
Sarmasikia Bubani (1897)
Schizocorona F.Muell. (1853)
Seshagiria Ansari & Hemadri (1971)
Sichuania M.G.Gilbert & P.T.Li (1995)
Steinheilia Decne. (1838)
Symphyoglossum Turcz. (1848)
Telminostelma E.Fourn. (1885)
Urostelma Bunge (1833)
Voharanga Costantin & Bois (1908)
Vohemaria Buchenau (1889)
Ziervoglia Neck. (1790)
Cynanchum is a
genus of about 300
species including some
swallowworts, belonging to the
familyApocynaceae. The taxon name comes from
Greekkynos (meaning "dog") and anchein ("to choke"), hence the common name for several species is dog-strangling vine. Most
species are non-
succulent climbers or twiners. There is some evidence of
toxicity.[2]
Morphology
These plants are perennial herbs or subshrubs, often growing from
rhizomes. The leaves are usually oppositely arranged and sometimes are borne on
petioles. The
inflorescences and flowers come in a variety of shapes.
Like other species of the
milkweed family, these plants bear
follicles, which are podlike dry fruits.
Distribution
These species are found throughout the
tropics and
subtropics. Several species also grow in
temperate regions.
Cynanchum as defined in the late 20th century (to include about 400 species) is
polyphyletic and is being broken up. Species are being moved to genera including Orthosia, Pentarrhinum, and Vincetoxicum, with a group of mostly Old World species staying in Cynanchum,[3][4] and old genera such as Raphistemma brought to synonymy. Revision of the genus taxonomy in 2023 identified two new synonyms: Vincetoxicum sibiricum f. linearifolium, described from Shandong, China in 1877, but long neglected and Cynanchum gobicum, previously believed to be endemic to Mongolia.[5]
^Sigrid Liede and Angelika Tauber (Oct–Dec 2002). "Circumscription of the Genus Cynanchum (Apocynaceae-Asclepiadoideae)". Systematic Botany. 27 (4): 789–800.
doi:
10.1043/0363-6445-27.4.789 (inactive 31 January 2024).
JSTOR3093924.{{
cite journal}}: CS1 maint: DOI inactive as of January 2024 (
link)