Isotoma is a genus of annual and perennial herbs in the family Campanulaceae and are native to Australia and New Zealand.
Plants in the genus Isotoma have milky sap, a distinct taproot and sometimes adventitious roots along the branches. The leaves are arranged alternately and are usually toothed or lobed. The flowers are solitary in leaf axils or arranged in groups on the ends of branchlets. The sepals form a short tube with lobes. The petal tube is slightly zygomorphic with five lobes spreading horizontally, the upper two smaller and the lower three often with distinct markings. The stamens are fused to the petal tube. The fruit is an urn-shaped or conical capsule containing a large number of minute seeds.[2][3]
In 1810, in his book Prodromus Florae Novae Hollandiae et Insulae Van Diemen, Robert Brown described Lobelia hypocrateriformis and placed it in section Isotoma.[4][5] Then in 1826, based on Brown's description, John Lindley raised the genus Isotoma in The Botanical Register.[6][7] The name Isotoma is derived from ancient Greek words meaning "equal" and "a piece cut off" or "a slice". The name was originally applied to the section Isotoma because those species differ from true lobelias in having petal lobes that are almost equal in size.[8]
The following is a list of species and subspecies accepted by the Australian Plant Census as at September 2020:[9]
Isotoma is a genus of annual and perennial herbs in the family Campanulaceae and are native to Australia and New Zealand.
Isotoma es un género de plantas perteneciente a la familia Campanulaceae. Comprende 24 especies descritas y de estas, solo 14 aceptadas.[1]
Son hierbas perennes que alcanza los 40 cm de altura con tallos erectos, glabros. Las hojas son elípticas o aovadas de 6-10 cm de longitud con 6,5 cm de ancho. Las flores son solitarias axilares, con pedúnculos de 4-13 cm de longitud. El fruto es una cápsula.
El género fue descrito por (R.Br.) Lindl. y publicado en Botanical Register; consisting of coloured . . . 12: t. 964. 1826.[2] La especie tipo es: Isotoma hypocrateriformis (R.Br.) Druce
A continuación se brinda un listado de las especies del género Isotoma aceptadas hasta octubre de 2013, ordenadas alfabéticamente. Para cada una se indica el nombre binomial seguido del autor, abreviado según las convenciones y usos.
Isotoma es un género de plantas perteneciente a la familia Campanulaceae. Comprende 24 especies descritas y de estas, solo 14 aceptadas.
Isotoma è un genere di piante annuali e perenni appartenente alla sottofamiglia delle Lobelioideae.[1][2]
Le specie, che sono originarie di Australia, Nuova Zelanda, Indie Occidentali e Isole della Società:[3][4][5]
Isotoma è un genere di piante annuali e perenni appartenente alla sottofamiglia delle Lobelioideae.
Le specie, che sono originarie di Australia, Nuova Zelanda, Indie Occidentali e Isole della Società:
Isotoma armstrongii E.Wimm., 1935 Isotoma baueri C.Presl, 1836 Isotoma fluviatilis (R.Br.) F.Muell., 1868, pianta perenne, proviene dagli altipiani australiani e dalla Nuova Zelanda Isotoma gulliveri F.Muell., 1876 Isotoma hypocrateriformis (R.Br.) Druce, 1917, nota come Veleno di Woodbridge Isotoma luticola Carolin, 1980 Isotoma pusilla Benth., 1837 Isotoma rivalis (E.Wimm.) Lammers, 1999 Isotoma scapigera (R.Br.) G.Don, 1834 Isotoma tridens (E.Wimm.) Lammers, 1999同瓣草属(学名:Isotoma)是桔梗科下的一个属,为直立草本植物。该属共有10种,分布于大洋洲和美洲。[1]
イソトマ属(いそとまぞく、Isotoma)とはキキョウ科の属の1つ。オーストラリア、ニュージーランド、ソシエテ諸島、西インド諸島に10種程度が分布する。
・種まき 3月中旬~4月下旬
イソトマは寒さに弱いので、発芽するには5℃以上が必要である。寒さに弱いので、日の当たる場所で育てる。
やや乾燥気味の土壌を好む。