For other uses, see Nepeta (disambiguation).
| Nepeta |
|
| Nepeta cataria – "true catnip" |
| Scientific classification |
| Kingdom: |
Plantae |
| (unranked): |
Angiosperms |
| (unranked): |
Eudicots |
| (unranked): |
Asterids |
| Order: |
Lamiales |
| Family: |
Lamiaceae |
| Genus: |
Nepeta
L. |
| Synonyms[1] |
- Cataria Adans.
- Saccilabium Rottb.
- Saussuria Moench
- Oxynepeta Bunge
- Schizonepeta (Benth.) Briq.
- Afridia Duthie
- Pitardia Batt. ex Pit.
|
Nepeta is a genus of flowering plants in the family Lamiaceae also known as catmints. The genus name is reportedly in reference to Nepete, an ancient Etruscan city.[2] There are about 250 species.[3]
The genus is native to Europe, Asia, and Africa, and has also naturalized in North America.[4]
Some members of this group are known as catnip or catmint because of their effect on house cats – the nepetalactone contained in some Nepeta species binds to the olfactory receptors of cats, typically resulting in temporary euphoria.[5]
Contents
- 1 Description
- 2 Selected species
- 3 Uses
- 4 References
- 5 External links
Description
Most of the species are herbaceous perennial plants, but some are annuals. They have sturdy stems with opposite heart-shaped, green to gray-green leaves.[3] Nepeta plants are usually aromatic in foliage and flowers.
The tubular flowers can be lavender, blue, white, pink, or lilac, and spotted with tiny lavender-purple dots. The flowers are located in verticillasters grouped on spikes; or the verticillasters are arranged in opposite cymes, racemes, or panicles – toward the tip of the stems.[3]
The calyx is tubular or campanulate, they are slightly curved or straight, and the limbs are often 2-lipped with five teeth. The lower lip is larger, with 3-lobes, and the middle lobe is the largest. The flowers have 4 hairless stamens that are nearly parallel, and they ascend under the upper lip of the corolla. Two stamen are longer and stamens of pistillate flowers are rudimentary. The style protrudes outside of the mouth of the flowers.[3]
The fruits are nutlets, which are oblong-ovoid, ellipsoid, ovoid, or obovoid in shape. The surfaces of the nutlets can be slightly ribbed, smooth or warty.[3]
Selected species
Flower spikes of
Nepeta curviflora
- Some species formerly classified as Nepeta are now in the genera Dracocephalum, Glechoma, and Calamintha .
- Nepeta agrestis
- Nepeta annua
- Nepeta apuleii
- Nepeta beltranii
- Nepeta camphorata
- Nepeta cataria - true catnip
- Nepeta ciliaris
- Nepeta coerulescens
- Nepeta congesta
- Nepeta curviflora
- Nepeta cyanea
- Nepeta densiflora
- Nepeta dentata
- Nepeta dirphya
- Nepeta discolor
- Nepeta elliptica
- Nepeta everardi
- Nepeta floccosa
- Nepeta foliosa
- Nepeta fordii
- Nepeta glutinosa
- Nepeta govaniana
- Nepeta granatensis
- Nepeta grandiflora - Caucasus catnip
- Nepeta heldreichii
- Nepeta hemsleyana
- Nepeta hindostana - Indian catnip
- Nepeta hispanica
|
- Nepeta italica
- Nepeta jomdaensis
- Nepeta kokamirica
- Nepeta kokanica
- Nepeta laevigata
- Nepeta lamiopsis
- Nepeta latifolia
- Nepeta leucolaena
- Nepeta leucophylla
- Nepeta longibracteata
- Nepeta manchuriensis
- Nepeta melissifolia
- Nepeta membranifolia
- Nepeta micrantha
- Nepeta multibracteata
- Nepeta multifida
- Nepeta mussinii
- Nepeta nepalensis
- Nepeta nepetella - lesser catmint
- Nepeta nervosa
- Nepeta nuda - hairless catmint
- Nepeta parnassica
- Nepeta parviflora
- Nepeta phyllochlamys
- Nepeta prattii
- Nepeta pungens
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- Nepeta racemosa - raceme catnip
- Nepeta raphanorhiza
- Nepeta rtanjensis
- Nepeta scordotis
- Nepeta sessilis
- Nepeta sibirica
- Nepeta sibthorpii
- Nepeta souliei
- Nepeta spruneri
- Nepeta staintonii
- Nepeta stewartiana
- Nepeta subsessilis
- Nepeta sungpanensis
- Nepeta supina
- Nepeta taxkorganica
- Nepeta tenuiflora
- Nepeta tenuifolia
- Nepeta tuberosa
- Nepeta ucranica
- Nepeta veitchii
- Nepeta virgata
- Nepeta wilsonii
- Nepeta yanthina
- Nepeta zandaensis
Natural hybrids
|
Uses
Cultivation
Some Nepeta species are cultivated as ornamental plants. They can be drought tolerant – water conserving, often deer repellent, with long bloom periods from late spring to autumn. Some species also have repellent properties to insect pests, including aphids and squash bugs, when planted in a garden.[2]
Nepeta species are used as food plants by the larvae of some Lepidoptera (butterfly and moth) species including Coleophora albitarsella, and as nectar sources for pollinators, such as honeybees and hummingbirds.
- Selected ornamental species
- Nepeta cataria (catnip, catswort) – the "true catnip", cultivated as an ornamental plant, has become an invasive species in some habitats.
- Nepeta grandiflora (giant catmint, Caucasus catmint) – lusher than true catnip and has dark green leaves and dark blue flowers.
- Nepeta × faassenii (garden catmint) – a hybrid of garden source with gray-green foliage and lavender flowers. It is drought-tolerant and deer-resistant.[2] The cultivar 'Walker's Low' was named Perennial of the Year for 2007 by the Perennial Plant Association.[6][7]
- Nepeta racemosa (raceme catnip) – commonly used in landscaping.[6] It is hardy, rated for USDA hardiness zone 5b.[8]
References
- ^ Kew World Checklist of Selected Plant Families
- ^ a b c Missouri Botanical Garden: Nepeta × faassenii. Accessed January 10, 2013
- ^ a b c d e "Nepeta". Flora of China 17: 107.
- ^ Leon L. Bram, editorial director, Robert S. Phillips, editor-in-chief, Norma H. Dickey, special projects editor-in-chief. (1983). Funk & Wagnalls New Encyclopedia. Vol. 5. New York: Funk & Wagnalls. ISBN 0-8343-0051-6.
- ^ Herron, Scott (2003). "Catnip, Nepeta cataria, a Morphological Comparison of Mutant and Wild Type Specimens to Gain an Ethnobotanical Perspective". Economic Botany 57 (1): 135–142. doi:10.1663/0013-0001(2003)057[0135:cncamc]2.0.co;2.
- ^ a b ornamental Outlook
- ^ msucares.com: sgnews
- ^ Richard G. Hawke. "Chicago Botanic Garden Plant Evaluation Notes" (PDF).
Further reading
- Jacobs, Betty E.M. (1981). Growing and Using Herbs Successfully. Pownal, Vermont: Garden Way Publishing.
- Turner, Ramona (May 29, 2007). "How does catnip work its magic on cats?". Scientific American. Retrieved February 14, 2009.
External links
|
Wikimedia Commons has media related to Nepeta. |
- GRIN Species Records of Nepeta
- USDA Plant Profile: Nepeta
- Flora of China: Nepeta'
- Flora of Nepal: Nepeta'
- Drugs.com: Catnip
- "Nepetalactone: What is in catnip anyway?"
- HowStuffWorks, Inc.: How does catnip work?
- Sciencedaily.com: "Catnip Repels Mosquitoes More Effectively Than DEET" – reported at the 2001 American Chemical Society meeting.
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