Lobelia is a genus of flowering plants comprising 415 species, with a subcosmopolitan distribution primarily in tropical to warm temperate regions of the world, a few species extending into cooler temperate regions. They are known generally as lobelias.
The family Campanulaceae, of the order Asterales, contains nearly 2400 species in 84 genera of herbaceous plants, shrubs, and rarely small trees, often with milky sap. Among them are several familiar garden plants belonging to the genera Campanula (bellflower), Lobelia, and Platycodon (balloonflower). Campanula rapunculus and Codonopsis lanceolata are eaten as vegetables. Lobelia inflata, L. siphilitica and L. tupa and others have been used as medicinal plants. Campanula rapunculoides may be a troublesome weed, particularly in gardens, while Legousia spp. may occur in arable fields.
The Nyika Plateau lies in northern Malawi, with a small portion in north eastern Zambia. Most of it lies at elevations of between 2,100 and 2,200 m, the highest point being 2,605 m (8,547 ft) at Nganda Peak. It is roughly a diamond in shape, with a long north–south axis of about 90 km (56 mi), and an east–west axis of about 50 km (31 mi). It towers above Lake Malawi, and the towns of Livingstonia and Chilumba. Its well-defined north-west escarpment rises about 700 m (2,300 ft) above the north-eastern extremity of the Luangwa Valley, and its similarly prominent south-east escarpment rises about 1,000 m (3,300 ft) above the South Rukuru River valley. It is very different in scenery from other parts of Malawi, consisting of rolling hills with little streams in broad valleys, and rough grassland with clumps of pine trees.
The Hawaiian lobelioids are a group of flowering plants in the bellflower family, Campanulaceae, subfamily Lobelioideae, all of which are endemic to the Hawaiian Islands. This is the largest plant radiation in the Hawaiian Islands, and indeed the largest on any island archipelago, with over 125 species. The six genera involved can be broadly separated based on growth habit: Clermontia are typically branched shrubs or small trees, up to 7 metres (23 ft) tall, with fleshy fruits; Cyanea and Delissea are typically unbranched or branching only at the base, with a cluster of relatively broad leaves at the apex and fleshy fruits; Lobelia and Trematolobelia have long thin leaves down a single, non-woody stem and capsular fruits with wind-dispersed seeds; and the peculiar Brighamia have a short, thick stem with a dense cluster of broad leaves, elongate white flowers, and capsular fruits. The relationships among the genera and sections remains unsettled as of April 2022.
Nepenthes argentii is a highland Nepenthes pitcher plant native to Mount Guiting-Guiting on Sibuyan Island in the Philippines. It is possibly the smallest species in the genus and does not appear to have a climbing stage.
Lobelia scaevolifolia is a species of the plant family Campanulaceae. It is endemic to the island of Saint Helena in the South Atlantic Ocean. It was at one time placed as the only species, Trimeris scaevolifolia, in the genus Trimeris. Its common name is St. Helena lobelia.
Dendrosenecio keniensis is one of the giant groundsels endemic the higher altitudes of Mount Kenya. It is in the family Asteraceae and the genus Dendrosenecio. Dendrosenecio keniodendron occurs the upper alpine zone of Mount Kenya and D. keniensis in the wetter areas of the lower alpine or the moorlands.
Araucaria columnaris, the coral reef araucaria, Cook pine, New Caledonia pine, Cook araucaria, or columnar araucaria, is a species of conifer in the family Araucariaceae.
Lobelia dortmanna, Dortmann's cardinalflower or water lobelia, is a species of flowering plant in the bellflower family Campanulaceae. This stoloniferous herbaceous perennial aquatic plant with basal leaf-rosettes and flower stalks grows to 0.7–2 m (2.3–6.6 ft) tall. The flowers are 1–2 cm long, with a five-lobed white to pale pink or pale blue corolla, produced in groups of one to ten on an erect raceme held above the water surface. The fruit is a capsule 5–10 mm long and 3–5 mm wide, containing numerous small seeds.
The scarlet-tufted sunbird is a species of bird in the Nectarinia of the family Nectariniidae. It is found in Democratic Republic of the Congo, Kenya, Malawi, Rwanda, Tanzania, Uganda, and Zambia. It is also known as the red-tufted sunbird and the scarlet-tufted malachite sunbird.
Erythrococca columnaris is a species of plant in the family Euphorbiaceae. It is endemic to Príncipe.
Phlegmariurus columnaris is a species of plant in the family Lycopodiaceae. It is endemic to Ecuador.
Lobelia monostachya, the one-stalked lobelia, is a species of flowering plant in the family Campanulaceae that is endemic to the island of Oʻahu in Hawaii. It inhabits cliffside mesic shrublands in the southern Koʻolau Mountains at an elevation of 44–614 m (144–2,014 ft). It was previously believed to be extinct. In 1994 it was rediscovered and only 8 individuals are currently known to exist. Associated native plants include Artemisia australis, Carex meyenii, Eragrostis spp., and Psilotum nudum. It is threatened by habitat loss.
Lobelia siphilitica, the great blue lobelia, great lobelia, or blue cardinal flower, is a plant species within the family Campanulaceae. It is an herbaceous perennial dicot native to eastern and central Canada and United States. There are two recognized varieties of Lobelia siphilitica, Var. siphilitica and Var. ludoviciana. Blooming from August to October, it is short-lived, lasting only for a few years.
Lobelia kalmii is a species of flowering plant with a distribution primarily across Canada and the northern United States in temperate and boreal regions. It was formerly known as Lobelia strictiflora (Rydb.) It is commonly known as Kalm's lobelia, Ontario lobelia and Brook lobelia.
Lobelia gaudichaudii is a species of flowering plant in the bellflower family known by the common name Koolau Range lobelia. It is endemic to Hawaii, where it is known only from the island of Oahu.
Lobelia niihauensis, commonly known as the Niihau lobelia, is a rare species of flowering plant in the bellflower family that is endemic to Hawaii. It is known only from the islands of Oʻahu and Kauaʻi and is thought to be extirpated from Niʻihau. It is federally listed as an endangered species of the United States.
Lobelia oahuensis is a rare species of flowering plant in the bellflower family known by the common name Oahu lobelia. It is endemic to Hawaii, where it is known only from the island of Oahu. There are about 100 individuals remaining in the Koʻolau Range, and only one known individual in the Waianae Range. It is federally listed as an endangered species of the United States.
Lobelia spicata, commonly called the pale spiked lobelia, is a flowering plant in the bellflower family.
Scaevola plumieri is a species of plant in the family Goodeniaceae which grows on coastal dunes in the tropics and subtropics.
