Plants named in 2006

Chamaecostus cuspidatus, common name fiery costus or spiral flag, is a species of herbaceous plant in the family Costaceae native to eastern Brazil (States of Bahia and Espírito Santo). In India, it is known as insulin plant for its purported anti-diabetic properties. Chamaecostus cuspidatus has large fleshy-looking leaves. The undersides of these large, smooth, dark green leaves have light purple shade. The leaves are spirally arranged around the stem, forming attractive, arching clumps arising from underground rootstocks. The maximum height of these plants is about two feet. The flowers are

Vachellia caven (Roman cassie, aromita, aromo criollo, caven, churque, churqui, espinillo, espinillo de baado, espino, espino maulino) is an ornamental tree in the family Fabaceae. Vachellia caven is native to Argentina, Bolivia, Chile, Paraguay, Uruguay and Rio Grande do Sul in Brazil. It grows four to five metres tall and bears very stiff and sharp white thorns up to 2 cm in length. It blooms in spring, with bright yellow flower clusters 1–2 cm (0.39–0.79 in) in diameter.

Nepenthes jamban ( ni-PEN-theez JUM-bən, not * JAM-bən) is a tropical pitcher plant endemic to northern Sumatra. The specific epithet jamban is the Indonesian word for "toilet" and refers to the shape of the pitchers.

Nepenthes chaniana (; after Datuk Chan Chew Lun, Managing Director of Natural History Publications) is a tropical pitcher plant species belonging to the genus Nepenthes. It is characterised by a dense indumentum of long, white hairs. Pitchers are cylindrical and mostly white to yellow in colouration. Nepenthes chaniana belongs to the loosely defined "N. maxima complex", which also includes, among other species, N. boschiana, N. epiphytica, N. eymae, N. faizaliana, N. fusca, N. klossii, N. maxima, N. platychila, N. stenophylla, and N. vogelii. Cultivated plants of this species were for a long

Chamaecostus is a group of flowering plants in the Costaceae described as a genus in 2006. It is endemic to South America. Species Chamaecostus congestiflorus - Venezuela, N Brazil, Guyana, Suriname, French Guiana Chamaecostus curcumoides - French Guiana Chamaecostus cuspidatus - E Brazil Chamaecostus fragilis - Colombia, N Brazil Chamaecostus fusiformis - Pará Chamaecostus lanceolatus - Colombia, Venezuela, Brazil, Guyana, Suriname, French Guiana Chamaecostus subsessilis - Brazil, Bolivia

The Geastrales are an order of gasterocarpic basidiomycetes (fungi) that are related to the Gomphales. The order contains the families Geastraceae—which include the "earthstars" formerly placed in Lycoperdales or Phallales,—and also Schenellaceae, Sclerogastraceae and Sphaerobolaceae. About 160 species are classified in this order, divided among seven or eight genera, including Geastrum, Myriostoma and Sphaerobolus. Sphaerobolus species are known as "shotgun fungus" or "cannonball fungus". They colonize wood-based mulches and may throw black, sticky, spore-containing globs onto nearby

Borassus akeassii is a species of palmyra palm which is native to west and central Africa. It occurs from Senegal to Congo-Kinshasa. It was first described in 2006, having previously been confused with Borassus aethiopum and Borassus flabellifer. It is used by local people for a variety of purposes, particularly sap extraction.

Rhaponticum repens, synonyms including Acroptilon repens and Leuzea repens, with the common name Russian knapweed, is a species of bushy rhizomatous perennial belonging to the family Asteraceae.

Pelliales is an order of liverworts.

Nepenthes tenax (; from Latin: tenax "tenacious") is a lowland species of tropical pitcher plant native to northern Queensland, Australia. It is the third Nepenthes species recorded from the continent and its second endemic species. Nepenthes tenax is closely related to the three other Australian Nepenthes species: N. mirabilis, N. rowaniae and N. parvula. Nepenthes tenax grows to a height of around 100 cm with pitchers rarely exceeding 15 cm. The stem is usually self-supporting. In its natural habitat, it is sympatric with N. mirabilis and N. rowaniae. Simple and complex natural hybrids

Mariosousa is a genus of 13 species of flowering plants in the family Fabaceae. It belongs to the mimosoid clade of the subfamily Caesalpinioideae. Members of this genus were formerly considered to belong to the genus Acacia. Restricted in range to Central America, Mexico, and the southwestern United States, members of the genus are trees or shrubs bearing alternate, bipinnately compound leaves—each with a swelling at the base of the petiole—and white- to cream- or yellow-colored flowers. The flowers are typically borne in elongated, bottle brush–like spikes. The fruits that later replace

Vachellia tortuosa, the twisted acacia , poponax or huisachillo, is a woody, leguminous thorn tree of the Caribbean, Florida, southern Texas, northeastern and central Mexico, and northern South America. It is found in tropical and desert habitats, such as the Rio Grande Valley, Central Mexican Plateau, and Colombian Tatacoa Desert.

Nepenthes lingulata is a tropical pitcher plant endemic to northern Sumatra. The species is characterised by the highly developed appendage present on the underside of the lid. The specific epithet lingulata is derived from the Latin word lingula, meaning "small tongue", and refers to this unique morphological feature.

Vachellia rigidula, commonly known as blackbrush acacia or chaparro prieto, and also known as Acacia rigidula, is a species of shrub or small tree in the legume family, Fabaceae. Its native range stretches from Texas in the United States south to central Mexico. This perennial is not listed as being threatened. It reaches a height of 5–15 feet (1.5–4.6 m). Blackbrush acacia grows on limestone hillsides and canyons.

Juniperus grandis, known as Sierra juniper, Sierra western juniper, and western juniper, is a tree or tall shrub that is endemic to the Western United States. It is sometimes considered a variety or subspecies of Juniperus occidentalis, which is also known as western juniper.

Euphorbia neoarborescens is a species of plant in the family Euphorbiaceae. It is endemic to Tanzania. It is listed as vulnerable by the IUCN.

Euphorbia biselegans is a species of plant in the family Euphorbiaceae. It is endemic to Tanzania. It is threatened by habitat loss.

Didymoglossum tahitense, syn. Microglossum tahitense is a fern native to Polynesia, the East Indies, Fiji, and Queensland in Australia. It is in the family Hymenophyllaceae, and is unusual in having peltate leaves. These are sessile on the rhizome.

Bulbophyllum ecornutoides is a species of orchid in the genus Bulbophyllum.

Bolandia is a genus of flowering plants belonging to the family Asteraceae. It is endemic to the Cape Provinces of South Africa. Species: Bolandia argillacea (Cron) Cron Bolandia elongata (L.f.) J.C.Manning & Cron Bolandia glabrifolia (DC.) J.C.Manning & Cron Bolandia pedunculosa (DC.) Cron Bolandia pinnatifida (Thunb.) J.C.Manning & Cron

Antillanthus is a genus of the tribe Senecioneae in the family Asteraceae described as a genus in 2006. Many members of this genus were previously listed as Pentacalia and Senecio. The entire genus is endemic to Cuba. IPNI Species Antillanthus acunae (Borhidi) B.Nord. - Pentacalia acunae Borhidi Antillanthus almironcillo (M. Gomez) B. Nord. - Senecio almironcillo M.Gomez - Pentacalia almironcillo (M. Gomez) Proctor Antillanthus azulensis (Alain) B. Nord. - Senecio azulensis Alain Antillanthus biseriatus (Alain) B. Nord. - Senecio biseriatus Alain Antillanthus carinatus (Greenm.) B. Nord. -

Aloe castilloniae is a species of flowering plant in the family Asphodelaceae. It is endemic to the south of Madagascar, where it grows in calcareous cliffs and rocky ridges in the Mahafaly plateau.

Zemisia is a genus of flowering plants belonging to the family Asteraceae. The genus was circumscribed by Rune Bertil Nordenstam in Compositae News Lett. vol.44 on page 72 in 2006. It is native to southern Mexico, El Salvador, Guatemala, Honduras and Jamaica. The genus name of Zemisia is in reference to Zemi, a deity or ancestral spirit, and a sculptural object housing the spirit, among the Taíno people of the Caribbean. Species: Zemisia discolor (Sw.) B.Nord. Zemisia thomasii (Klatt) Pruski

Vachellia sphaerocephala, the bull's horn thorn or bee wattle, is a plant species in the family Fabaceae. The name comes from the shape of the thorns which do indeed resemble the horns of a bull. The tree has a strong, symbiotic relationship with a species of stinging ant, Pseudomyrmex ferruginea. This tree is endemic to Mexico.

Senegalia etilis is a species of plant in the family Fabaceae. It is found in Argentina and Bolivia. It is threatened by habitat loss.

Rafflesia lobata is a parasitic plant species of the genus Rafflesia. It is endemic to the Philippine island of Panay, particularly the mountains of Antique and Iloilo provinces. This is the second species recorded from the island of Panay. One of the most distinctive features of Rafflesia lobata is that some populations have flowers with a lobed diaphragm that opens outward. Nearly all other Rafflesia (and Sapria) species have diaphragms that curve inward. This feature is polymorphic in R. lobata (at least as the species is currently defined). As shown in the photos below, in some

Rafflesia baletei is a parasitic plant species of the genus Rafflesia. It is endemic to the Philippines. The species was first collected in 1991 by Bicolano mammalogist Danilo S. Balete on Mount Isarog and was initially thought to be Rafflesia manillana. It was only in 2006 that Filipino scientists confirmed the identity of this new species, naming it in Balete's honour. After the establishment of the identity of this species, a new population was rediscovered on Mount Isarog and Mount Iriga. See this citation for a review of Philippine Rafflesia.

Paphiopedilum thaianum, or the Thai paphiopedium, is a species of slipper orchid endemic to peninsular Thailand. The orchid species is found in primary forest shade, on the slopes of steep limestone hillsides and cliffs. It is found at an elevation of 350–450 meters above sea level.

Gynoxys is a genus of South American flowering plants in the family Asteraceae. It includes 117 species which range from Venezuela through Colombia, Ecuador, Peru, and Bolivia to northwestern Argentina. Recent phylogenomic and morphological studies found the species of the former genus Nordenstamia were nested within Gynoxys, and Nordenstamia has now been subsumed into Gynoxys.

Magnolia aromatica is a species of plant in the family Magnoliaceae. It is found in China and Vietnam. It is threatened by habitat loss.