Misopates is a small genus of annual flowering plants in the family Plantaginaceae (placed by some older authorities under Scrophulariaceae), closely allied to the true snapdragons (Antirrhinum) and commonly grouped with them under the name "snapdragons." The genus comprises around eight accepted species, centred on the Mediterranean Basin and extending through southern Europe, North Africa, Macaronesia, and southwestern Asia.
Plants in the genus are annual herbs, typically erect or ascending, reaching 30–90 cm in height. Stems are simple or branched, often glabrous toward the base and glandular-pubescent in the inflorescence. Leaves are linear to elliptic or lanceolate, the lowermost sometimes with a purplish lower surface. The flowers are bilabiate (two-lipped) and zygomorphic in the classic snapdragon form, with a closed mouth opened by the weight of a pollinator — a mechanism shared with Antirrhinum. Corolla colour is typically pink to whitish with darker purple veins, and the palate bears conspicuous yellow or whitish gibbosities. The calyx is divided into long, linear lobes and may exceed the corolla in length. The fruit is an ovoid capsule 5–10 mm long, glandular-pubescent, opening by pores; seeds are small (around 1 mm), dark brown to black, and finely tuberculate.
The most widespread and familiar species is Misopates orontium (L.) Raf. (weasel's snout or calf's snout), which occurs throughout southern Europe, North Africa, Macaronesia, and southwest Asia, and has been widely naturalized in northern Europe, the Americas, and Australia. It is a ruderal plant of disturbed soils, roadsides, arable fields, and fallows, tolerating both calcareous and acidic substrates from sea level to about 1200 m. Misopates calycinum is another accepted species in the genus, known from the western Mediterranean.
Etymology
The genus name Misopates derives from Greek roots, though the precise etymology is not documented in the sources consulted. The common names "weasel's snout" and "calf's snout" applied to M. orontium refer to the shape of the closed, two-lipped flower characteristic of snapdragon relatives. The species epithet orontium refers to the Orontes River in the Middle East, the region from which Linnaeus originally described the plant.
Distribution
Misopates species are centred on the Mediterranean Basin, with the main range spanning southern Europe, North Africa, Macaronesia (the eastern Atlantic islands), and southwestern to south-central Asia. Misopates orontium, the most widespread species, has additionally become naturalized in northern Europe, the Americas, and Australia, primarily as a weed of disturbed and agricultural land. The remaining species are more narrowly distributed across the Iberian Peninsula and North Africa.
Ecology
Misopates plants are characteristically ruderals of disturbed habitats: arable fields, fallows, roadsides, waste ground, and abandoned cultivation. They are edaphically indifferent, growing on both acidic and calcareous soils. The bilabiate, closed flower mouth is adapted for pollination by bees heavy enough to push the palate open, a mechanism shared with related genera including Antirrhinum. Misopates orontium flowers over an exceptionally long season (February to December in Iberia), reflecting its annual, weedy life strategy.
Taxonomy Notes
Misopates was traditionally included within Antirrhinum or Scrophulariaceae sensu lato; following molecular phylogenetic revisions, it is now placed in Plantaginaceae (APG system). GBIF currently lists the genus under Scrophulariaceae, reflecting an older or alternative circumscription. The genus was segregated from Antirrhinum by Rafinesque and later revised by D.A. Sutton, whose 1988 monograph of the tribe Antirrhineae established the current species limits. Wikipedia lists eight accepted species; the synonymy of M. orontium with the Linnaean Antirrhinum orontium L. (1753) is well established.
