Dendroviguiera

Dendroviguiera species generally are shrubs and trees with phyllaries (modified leaves) with oblong, indurated (hardened) bases and short, triangular herbaceous apices (leaf-tips).

The abaxial (underneath) leaf surfaces usually not densely pubescent (downy; covered with short, soft hairs).

[4] Molecular phylogenetic studies by Schilling in 1991, suggested that there is an unexpectedly close relationship between Iostephane (genus of Mexican flowering plants in the family Asteraceae) and Dendroviguiera (formerly Viguiera sect.

[5] Botanists Edward E. Schilling and José Luis Panero in 2002 and 2011, studied the subtribe Helianthinae based on molecular sequences of nuclear ITS, ETS, and cpDNA, coming to a conclusion that the genus Viguiera Kunth, did not constitute a monophyletic group.

Among their conclusions they proposed to reclassify the genus, dividing and relocating its species in at least eleven genera: Aldama La Llave, Bahiopsis Kellogg, Calanticaria (B.L.

[2] After using plastid DNA sequence data for internal transcribed spacer (ITS) and partial external transcribed spacer (ETS) studies, The genus name of Dendroviguiera is in honour of Louis Guillaume Alexandre Viguier (1790–1867), who was a French doctor and botanist,[7] preceded by the Greek words dendron meaning 'tree'.

[12] Found in Morelos, State of Mexico, Dendroviguiera mirandae on IUCN RED list as "least concern".

[13] Secondary metabolites (or organic compounds) such as germacrolides (GERM), heliangolides (HELI) and furanoheliangolides (FUHE) and tetracyclic diterpenes (TETD) have been characterized from various Dendroviguiera species.

[14] Sesquiterpene lactones 52 and 96, were isolated from Dendroviguiera sylvatica have found to inhibited the nitric oxide production and phagocytosis of macrophages (Dupuy et al.