Code
LAMAM
Growth form
broadleaf
Biological cycle
annual
Habitat
terrestrial
🗒 Synonyms
| synonym | Galeobdolon amplexicaule (L.) Moench |
| synonym | Lamiella amplexicaulis (L.) E.Fourn. |
| synonym | Lamiopsis amplexicaulis (L.) Opiz |
| synonym | Lamium amplexicaule subsp. mauritanicum (Gand. ex Batt.) Maire |
| synonym | Lamium amplexicaule var. albiflorum Tubilla & Lázaro Ibiza |
| synonym | Lamium amplexicaule var. album Pickens & Pickens |
| synonym | Lamium amplexicaule var. amplexicaule |
| synonym | Lamium amplexicaule var. arenicola P.Monts. |
| synonym | Lamium amplexicaule var. breviflorum Coss. & Germ. |
| synonym | Lamium amplexicaule var. calyciflorum Ten. |
| synonym | Lamium amplexicaule var. clandestinum Rchb. |
| synonym | Lamium amplexicaule var. cryptanthum Cariot |
| synonym | Lamium lassithiense Coustur. & Gand. |
| synonym | Lamium mauritanicum Gand. ex Batt. |
| synonym | Lamium mesogaeon Heldr. ex Boiss. |
| synonym | Lamium rumelicum Velen. |
| synonym | Lamium stepposum Kossko ex Klokov |
| synonym | Pollichia amplexicaulis (L.) Willd. |
🗒 Common Names
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📚 Overview
Description
Global description
Lamium amplexicaule is an herbaceous plant, finely pubescent, medium in size, not exceeding 25 cm in height. The stems, with square section, are prostrate and then erect, lengthily bare beneath the leaves. The lower leaves are stalked, the upper sessile clasping. The lamina is rounded with strongly crenated margin. In the axils of the terminal leaves, crimson flowers are grouped in spaced whorls. The fruit is a smooth tetrachene, dark brown in color.
Cotyledons
The petiole is longer than the leaf blade (full development), pubescent. The elliptical blade (6 mm long and 5 mm wide), with auricled base, rounded shortly mucronate end, entirely glabrous.
First leaves
The leaves of the first pair are finely pubescent. Their leaf blade is ovate-triangular, with almost straight base, deeply lobed margin with short cilia.
General habit
Annual herbaceous plant, finely pubescent, 5 to 25 cm high.
Underground system
Taproot.
Stem
The stems, square section, are prostrate and then erect. They are extensively bare below the leaves.
Leaf
Lower leaves stalked, rounded-oval, serrated, base rounded or cordate and rounded top or in wide area. Sessile upper leaves are round or kidney-shaped, clasping, deeply lobed-serrated. They underlie the whorls of flowers. Both sides are pubescent.
Inflorescence
The flowers are grouped by 6 to 10 in 2 or 3 whorls shelved in the upper part of the stem.
Flower
The calyx, composed of a tube extended by shorter tines, is pubescent. Corolla (15 mm long, approximately) is purple red in colour. The tube is slender, straight, 3 times longer than the calyx. It does not have a ring of hairs inside. The upper lip is full. The lower lip is marked with a purple stain. 4 stamens are fused to the corolla, in groups of two.
Fruit
The fruit consists of 4 achenes (tetrachenes) separated, that remain for long at the bottom of the dry calyx. Each achene is ovoid, of triangular section, smooth surface, dark brown in color.
Lamium amplexicaule is an herbaceous plant, finely pubescent, medium in size, not exceeding 25 cm in height. The stems, with square section, are prostrate and then erect, lengthily bare beneath the leaves. The lower leaves are stalked, the upper sessile clasping. The lamina is rounded with strongly crenated margin. In the axils of the terminal leaves, crimson flowers are grouped in spaced whorls. The fruit is a smooth tetrachene, dark brown in color.
Cotyledons
The petiole is longer than the leaf blade (full development), pubescent. The elliptical blade (6 mm long and 5 mm wide), with auricled base, rounded shortly mucronate end, entirely glabrous.
First leaves
The leaves of the first pair are finely pubescent. Their leaf blade is ovate-triangular, with almost straight base, deeply lobed margin with short cilia.
General habit
Annual herbaceous plant, finely pubescent, 5 to 25 cm high.
Underground system
Taproot.
Stem
The stems, square section, are prostrate and then erect. They are extensively bare below the leaves.
Leaf
Lower leaves stalked, rounded-oval, serrated, base rounded or cordate and rounded top or in wide area. Sessile upper leaves are round or kidney-shaped, clasping, deeply lobed-serrated. They underlie the whorls of flowers. Both sides are pubescent.
Inflorescence
The flowers are grouped by 6 to 10 in 2 or 3 whorls shelved in the upper part of the stem.
Flower
The calyx, composed of a tube extended by shorter tines, is pubescent. Corolla (15 mm long, approximately) is purple red in colour. The tube is slender, straight, 3 times longer than the calyx. It does not have a ring of hairs inside. The upper lip is full. The lower lip is marked with a purple stain. 4 stamens are fused to the corolla, in groups of two.
Fruit
The fruit consists of 4 achenes (tetrachenes) separated, that remain for long at the bottom of the dry calyx. Each achene is ovoid, of triangular section, smooth surface, dark brown in color.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
There is content in another language. Please click here to read it. (Français)
No Data
📚 Nomenclature and Classification
No Data
📚 Natural History
Life Cycle
Life cycle
Annual
There is content in another language. Please click here to read it. (Français)
Algeria: Lamium amplexicaule has an autumn-winter germination and a flowering from January to June.
KAZI TANI Choukry
| Attributions | KAZI TANI Choukry |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
Morphology
Growth form
Erected
Leaf arrangement
Opposite
Leaf type
Simple
Type of prefoliation
Broad leaves
Equality of opposite leaves
Opposite leaves equal
Latex
Without latex
Stem section
Square
Root type
Taproot
Hollow or solid stem
Solid stem
Stipule type
No stipule
Leaf attachment type
sessile
with petiole
Sheathing leaf
Cotyledon type
orbicular
Lamina base
rounded
cordate
Lamina margin
dentate-crenate
Lamina apex
obtuse
rounded
Upperface pilosity
Dense hairy
Upperface hair type
Long
Lowerface pilosity
Dense hairy
Lowerface hair type
Long
Simple leaf type
Lamina elliptic
Lamina section
embossed
Lamina Veination
3 opposite at the basis
Flower color
Pinkish
Inflorescence type
Condensed spike
Glomerulate
Stem pilosity
Less hairy
Stem hair type
Pubescent
Life form
Broadleaf plant
Look Alikes
| Prostrate growth habit | Lamium amplexicaule | |||
| Erect growth habit | Stalk with four clear edge | Stalk with concave faces | Leonotis nepetifolia | |
| Light grooves on the stalk | Hyptis pectinata | |||
| Stalk with four rounded angles | Longitudinal furrow marked on the faces of the stalk | Palmate lobed leaf | Leonurus sibiricus | |
| Elliptic leaf | Leucas lavandulifolia | |||
| Stalk with depressed faces and oval lanceolate leaf | Lamina finely serrated towards the top | Hyptis spicigera | ||
| lamina with strongly serrated margin | Leucas martinicensis | |||
| Tines slightly marked | Ocimum americanum | |||
| plant of 1 to 2 m | inflorescence in panicle | Hyptis pectinata | |
| inflorescence in axillary glomerulus | Leonotis nepetifolia | ||
| plant of 1 m (ou moins) | Palmate lobed leaves | Leonurus sibiricus | |
| Elliptic leaves | Leucas lavandulifolia | ||
| Oval leaves | lamina with strongly serrated margin | Leucas martinicensis | |
| lamina finely serrated towards the top | Hyptis spicigera | ||
| plant of 20 to 40 cm | Erect growth habit | Ocimum americanum | |
| Prostrate growth habit | Lamium amplexicaule | ||
| inflorescence in panicle | Hyptis pectinata | ||
| inflorescence in terminal spike | dense spike | Hyptis spicigera | |
| Loose spike | Ocimum americanum | ||
| inflorescence in axillary glomerulus | Large orange flower | Leonotis nepetifolia | |
| White flower | glabrous petals | Leucas martinicensis | |
| petals covered with white hairs | Leucas lavandulifolia | ||
| inflorescence in whorl | White flower | Leucas lavandulifolia | |
| pink to purple flower | 10 to 25 flower per whorl | Leonurus sibiricus | |
| 5 à 10 fleurs par whorl | Lamium amplexicaule | ||
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
There is content in another language. Please click here to read it. (Français)
Ecology
There is content in another language. Please click here to read it. (Français)
Madagascar: Absent
Mauritius: Absent.
Reunion: Lamium amplexicaule is present, since recently, in the lentils plot and gardening plots of Cilaos at 600 m altitude
Mauritius: Absent.
Reunion: Lamium amplexicaule is present, since recently, in the lentils plot and gardening plots of Cilaos at 600 m altitude
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
There is content in another language. Please click here to read it. (Français)
Algeria: Lamium amplexicaule is a ruderal and cereal-growing species quite frequent in annual and perennial crops and nurseries throughout the country. It seems to be indifferent to the nature of the soil although more frequent on limes rich enough in nitrogen.
KAZI TANI Choukry
| Attributions | KAZI TANI Choukry |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
No Data
📚 Habitat and Distribution
General Habitat
Habitat
Terrestrial
Description
Geographical distibution
Reunion Island
There is content in another language. Please click here to read it. (Français)
Origin
Lamium amplexicaule is native to Europe; Asia, as far as Japan; Northern Africa.
Worldwide distribution
This species is widely distributed in temperate or tropical regions of altitude (North and South America, South Africa, South Australia and New Zealand).
Lamium amplexicaule is native to Europe; Asia, as far as Japan; Northern Africa.
Worldwide distribution
This species is widely distributed in temperate or tropical regions of altitude (North and South America, South Africa, South Australia and New Zealand).
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
There is content in another language. Please click here to read it. (Français)
Algeria: Lamium amplexicaule is a common species in the whole country.
KAZI TANI Choukry
| Attributions | KAZI TANI Choukry |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
No Data
📚 Occurrence
No Data
📚 Demography and Conservation
Risk Statement
Local harmfulness
Madagascar: Absent
Mauritius: Absent.
Reunion: Lamium amplexicaule is not described in the specification of Lamiaceae of Flora of Mascareigne published in 1994, but only quoted as "having recently been found in a garden of Cilaos." But in 2005, this species was present in almost 60% of the survey taken in Cilaos and sometimes with a note of abundance of 3 (15% recovery, which corresponds to the presence of at least one individual per m2 ). So it seems that the species is in development and that it may become an important issue in the coming years. In 2005, it was naturalized in this Cirque where its presence is confirmed in lentil crops.
Madagascar: Absent
Mauritius: Absent.
Reunion: Lamium amplexicaule is not described in the specification of Lamiaceae of Flora of Mascareigne published in 1994, but only quoted as "having recently been found in a garden of Cilaos." But in 2005, this species was present in almost 60% of the survey taken in Cilaos and sometimes with a note of abundance of 3 (15% recovery, which corresponds to the presence of at least one individual per m2 ). So it seems that the species is in development and that it may become an important issue in the coming years. In 2005, it was naturalized in this Cirque where its presence is confirmed in lentil crops.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
There is content in another language. Please click here to read it. (Français)
There is content in another language. Please click here to read it. (Français)
Local harmfulness
Algeria: Lamium amplexicaule is a minor "weed". Uncommon and not very abundant, it does not generally constitute a nuisance for the culture.
KAZI TANI Choukry
| Attributions | KAZI TANI Choukry |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
No Data
📚 Uses and Management
Uses
Food: The leaves, stems and flowers of Lamium amplexicaule can be eaten raw or cooked. They have a slightly sweet and peppery taste.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
There is content in another language. Please click here to read it. (Français)
There is content in another language. Please click here to read it. (Français)
Beekeeping: Lamium amplexicaule is a melliferous plant.
Wiktrop
| Attributions | Wiktrop |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
No Data
📚 Information Listing
Global Biodiversity Information Facility (GBIF)
Thomas Le Bourgeois
| Attributions | |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
There is content in another language. Please click here to read it. (Français)
References
- Scott A.J., Bosser J. 1994. Flore des Mascareignes, Vol. 139 Labiées in Antoine R., Bosser J., Fergusson I.K.,ed. Flore des Mascareignes, La Réunion, Maurice, Rodrigues. MSIRI, Maurice, IRD, France, RBG, UK.
- https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:448797-1
- Marmarot, J., Psarski, P., Rouquier R., 1997, Mauvaises herbes des cultures, Association de coordination Technique Agricole, Paris, France.
Information Listing > References
- Scott A.J., Bosser J. 1994. Flore des Mascareignes, Vol. 139 Labiées in Antoine R., Bosser J., Fergusson I.K.,ed. Flore des Mascareignes, La Réunion, Maurice, Rodrigues. MSIRI, Maurice, IRD, France, RBG, UK.
- https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:448797-1
- Marmarot, J., Psarski, P., Rouquier R., 1997, Mauvaises herbes des cultures, Association de coordination Technique Agricole, Paris, France.
Images
Herbarium pictures ReCOLNAT: https://explore.recolnat.org/search/botanique/simplequery=Lamium%2520amplexicaule
Thomas Le Bourgeois
| Attributions | |
| Contributors | |
| Status | UNDER_CREATION |
| Licenses | CC_BY |
| References |
There is content in another language. Please click here to read it. (Français)
No Data
🐾 Taxonomy
| Root | Root |
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Lamiales |
| Family | Lamiaceae |
| Genus | Lamium |
| Species | Lamium amplexicaule L. |
📊 Temporal Distribution
📷 Related Observations
