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Horminum

Flowers of Horminum pyrenaicum at the Giardino Botanico Alpino Chanousia
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Lamiales
Family:	Lamiaceae
Subfamily:	Nepetoideae
Tribe:	Mentheae
Genus:	Horminum L.
Species:	H. pyrenaicum
Binomial name
*Horminum pyrenaicum* L.

Horminum is a genus of flowering plants in the family Lamiaceae, comprising a single species, Horminum pyrenaicum. Common names include dragonmouth and Pyrenean dead-nettle.

Description

Horminum pyrenaicum is a perennial plant growing to 45 cm tall. The square stems have small hairs with sessile glands. The leaves are produced in basal rosettes, 3–7 cm long and 2–5 cm broad, long-stalked, ovate, glossy deep green, quilted, with a bluntly toothed margin. The flowers are produced in whorls on the upper stems, violet-blue or dark purple, tubular or bell-shaped, 1.5–2 cm long, with two lips. The flowering period extends from July to August.

Cultivation

Grow in peaty, well-drained but not overly rich soil in full sun. This is an alpine plant best suited to areas with mild summers where nights are cool. Keep evenly moist and feed once at the start of the growing season with a ration of slow-release fertiliser. Propagate from seed sown in autumn and exposed to low winter temperatures, or by dividing established clumps in spring.

Distribution

This species is native to the Pyrenees and Alps in western Europe.

Habitat

Horminum pyrenaicum prefers rocky slopes, pastures and grasslands at elevation of 1,400–2,500 metres (4,600–8,200 ft) above sea level.

Gallery

Illustration from "La flore et la pomone françaises" by J.H. Saint-Hilaire, 1832.
Plants
Basal leaves

References

External links

Wikispecies has information related to Horminum.

Wikimedia Commons has media related to Horminum.

Taxon identifiers
Horminum	Wikidata: Q14566683 Wikispecies: Horminum APNI: 69086 BioLib: 113220 CoL: 8WGJQ EoL: 5380655 EPPO: 1HOIG GBIF: 5428516 GRIN: 5793 iNaturalist: 334016 IPNI: 20910-1 NCBI: 39167 Open Tree of Life: 839075 POWO: urn:lsid:ipni.org:names:30247066-2 WFO: wfo-4000018280
Horminum pyrenaicum	Wikidata: Q159460 Wikispecies: Horminum pyrenaicum CoL: 6MDNX EoL: 5380667 EPPO: HOIPY EUNIS: 175138 GBIF: 5605805 iNaturalist: 334013 IPNI: 447877-1 NCBI: 39322 Observation.org: 140615 Open Tree of Life: 880704 PalDat: Horminum_pyrenaicum PFI: 4665 Plant List: kew-100217 POWO: urn:lsid:ipni.org:names:447877-1 Tropicos: 50009627 WFO: wfo-0000215058

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