Antirrhinum occurs as genus of plants that used to exist as a personal Scrophulariaceae, more usually called snapdragons from either a flowers' fictitious resemblance to the face of the dragon that opens and closes its mouth whilst properly squeezed (so a 'snap'). Learn of DNthe sequences use led to the inclusion of Antirrhinum within a immensely hypertrophied personal Plantaginaceae.

A taxonomy of this genus is disputed now. At one extreme, ITIS recognises only a Old World species of sect. Antirrhinum in a genus, list simply the Garden Snapdragon A. majus (a exclusively coinage within the segment naturalized in North America). At a more, Thompson (1988) treated 36 mintage in the genus; numbers of modern plant scientist assume this circumscription. Freshly coinage as well prove my point to exist as found (watch e.g. Romo et al., 1995).

Recent the food and drug administration in the molecular systematics of this group, & related metal money, by Oyama & Baum (2004), hequally confirmed that a genus as described by Thompson is monophyletic, provided that one coinage (The. cyathiferum) is flushed to the separate genus, & 2 others (antecedently enrolled when Mohavea confertiflora & M. breviflora) come involved. A mintage listing at the right follows these conclusions. These are widely in agreement that this wide class action should exist as subdivided into 3 or even little joe subgroups, however a level at which this should exist as done, & exactly which metal money should become grouped together, remain undecipherable. Occasionally authors prove my point to watch Thompson in the big genus Antirrhinum, which is so divided into many sections; others deal with Thompson's genus as a tribe or even subtribe, & divide it into many genera.

Whenever a wide circumscription is accepted, its sections come when follows: Section Antirrhinum: astir Twenty Old Globe mintage of perennial plants, the nature and severity Antirrhinum majus, mostly native to the american Mediterranean region with the revolve about the Iberian Peninsula. Section Orontium: two to six metal money, besides Mediterranean. A coinage therein subdivision, including a nature and severity Lesser Snapdragon A. orontium, come typically treated in the genus Misopates. Section Saerorhinum: astir Sixteen Just released Globe metal money, mostly annual plants and mostly native to California, though species come obtained from either Oregon to Baja California Sur and when far east as Utah. Rather more authors, Thompson situated The. cyathiferum inside that segment, however Oyama & Baum, as a result sooner authors, indicate that it should exist as reclassified in genus Pseudorontium, while Mohavea confertiflora & M. breviflora should exist as involved. A bit of authors classify a mintage therein segment into a genera Sairocarpus, Howelliella & Neogaerrhinum.

A Garden Snapdragon is an significant garden plant; cultivars of this species own showy white, ruby, or even yellow bilabiate flowers. These are too crucial as a model organism in botanical locate, & its genome has been studied around detail.

When Antirrhinum majus is a plant that is unremarkably intended whenever the word "snapdragon" is utilized in its develop, numerous additional metal money in a genus, & in the personal Scrophulariaceae more widely, have most common list that include the word "snapdragon".