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Lamium maculatum

(Spotted Dead Nettle)

Overview

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Interesting Facts

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Common Names

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Click on the language to view common names.

Common Names in Czech:

Hluchavka Skvrnitá

Common Names in Dutch:

Gevlekte Dovenetel

Common Names in English:

Spotted Dead Nettle, Spotted Dead-Nettle, Spotted Deadnettle, Spotted Henbit, Spotted Nettle

Common Names in Finnish:

Täplälehtipeippi

Common Names in French:

Lamier à Feuilles Maculées, Lamier Maculé, Lamier Rouge, Lamier Taché, Lamier Tacheté, Ortie Rouge

Common Names in German:

Gefleckte Taubnessel

Common Names in Hungarian:

Foltos árvacsalán

Common Names in Japanese:

Deddo Nettoru, Pinkupaaru, Ramiumu Pinkupaaru

Description

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Genus Lamium

Herbs annual or perennial . Stem leaf blades circular or reniform to ovate-lanceolate, margin coarsely crenate or dentate-serrate. Verticillasters 4-14-flowered; floral leaves similar, much longer than verticillasters; bracts ± linear , early deciduous. Calyx tubular-campanulate to campanulate , 5- or 10-veined, ± hairy outside, throat slightly oblique or regular; teeth 5, subequal , subulate , as long as or longer than tube . Corolla purple-red, reddish, yellowish, to dirty white, 2-lipped, 2(-3) × as long as calyx, hairy outside; tube straight or incurved , cylindric or widened above annulus, subsaccate; upper lip erect , oblong , rounded or emarginate , ± galeate ; lower lip spreading, 3-lobed; middle lobe obcordate , emarginate or 2-lobed; lateral lobes semicircular, margin crenate or dentate . Stamens 4, hairy, anterior 2 longer, ascending beneath upper lip; anther cells 2, divaricate . Ovary lobes apically truncate , glabrous or tuberculate , sometimes with a membranous margin. Style apex subequally 2-cleft.

About 40 species: Africa, Asia, Europe, introduced in North America.[1]

Physical Description

Species Lamium maculatum

Herbs perennial . Stems 30-50 cm tall, sparsely white pubescent , hollow. Petiole slender, 1.5-3 cm; stem leaf blades ovate , 2.5-5 × 1.5-3 cm, herbaceous, appressed hirtellous, abaxially glandular punctate , base subtruncate to broadly cuneate, margin coarsely incurved serrate, apex caudate-acuminate. Verticillasters 8-12-flowered; bracts linear , 2-3 mm, ciliate . Calyx campanulate , ca. 1 cm × 3.5 mm, 5-ribbed, glabrous except for hirsute veins; teeth subequal , straight or spreading , linear-lanceolate, 5-6 mm, margin ciliate, apex long aristate . Corolla purple, 1.8-2.5 cm; tube ca. 2 mm wide at base, pilose outside, densely so on upper lip, hairy annulate and puberulent inside; upper lip straight, oblong , ca. 7 mm, narrowed and slightly curved at base, margin undulate; lateral lobes of lower lip shallowly semicircular, each with a marginal tooth 1-1.5 mm. Anthers dark purple. Ovary lobes glabrous, with a membranous margin at apex. Fl. Jul-Aug. [source]

Habit: Forb/herb

Flowers: Bloom Period: April, May, June. • Flower Color: lavender, near white, pink, violet, white

Size/Age/Growth

Size: 6-12" tall.

Habitat

Hill tops, valleys; 2400-2700 m [2].

Typically found at an altitude of 0 to 2,500 meters (0 to 8,202 feet).[3]

Biology

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Reproduction

Duration: Perennial

Growth

Culture: Space 9-12" apart.

Soil: Minimum pH: 7.6 • Maximum pH: 7.8

Sunlight: Sun Exposure: Partial to Full Shade.

Moisture: Drought Tolerance: High

Temperature: Cold Hardiness: 3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b. (map)

Taxonomy

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Synonyms

Lamium Album Maculatum • Lamium album var. maculatum L. • Lamium maculatum var. kansuense C. Y. Wu & Hsuan.

Notes

Name Status: Accepted Name .

Last scrutiny: 15-Mar-2000

Similar Species

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Members of the genus Lamium

ZipcodeZoo has pages for 36 species, subspecies, varieties, forms, and cultivars in this genus:

L. album (White Dead Nettle Lamium Album) · L. amplexicaule (Common Deadnettle) · L. confertum (Garden Henbit) · L. galeobdolon montanum 'Florentinum' (Yellow Archangel) · L. galeobdolon 'Hermann's Pride' (Hermann's Pride Deadnettle) · L. galeobdolon 'Petit Point' (Archangel) · L. galeobdolon 'Silver Spangles' (Yellow Archangel) · L. galeobdolon 'Variegatum' (Variegated Yellow Archangel) · L. garganicum (Lamium Lamium Garganicum) · L. hybridum (Cut-Leaved Dead-Nettle) · L. maculata'Golden Anniversary' (Golden Anniversary Dead Nettle) · L. maculatum (Spotted Dead Nettle) · L. maculatum 'Album' (Spotted Dead Nettle) · L. maculatum 'Anne Greenaway' (Anne Greenaway Spotted Dead Nettle) · L. maculatum 'Aureum' (Aureum Spotted Dead Nettle) · L. maculatum 'Beacon Silver' (Beacon Silver Dead Nettle) · L. maculatum 'Beedham's White' (Beedhams White Spotted Dead Nettle) · L. maculatum 'Cannon's Gold' (Cannons Gold Spotted Dead Nettle) · L. maculatum 'Chequers' (Chequers Spotted Dead Nettle) · L. maculatum 'Elisabeth De Haas' (Spotted Dead Nettle) · L. maculatum 'Friday' (Friday Spotted Dead Nettle) · L. maculatum 'Golden Anniversary' (Dead Nettle) · L. maculatum 'Orchid Frost' (Orchid Frost Spotted Dead Nettle) · L. maculatum 'Pink Chablis' (Spotted Dead Nettle) · L. maculatum 'Pink Nancy' (Spotted Henbit) · L. maculatum 'Pink Pewter' (Pink Pewter Dead Nettle) · L. maculatum 'Purple Dragon' (Purple Dragon Dead Nettle) · L. maculatum 'Red Nancy' (Red Nancy Dead Nettle) · L. maculatum 'Shell Pink' (Dead Nettle) · L. maculatum 'White Nancy' (White Nancy Dead Nettle) · L. moschatum (Musky Deadnettle) · L. orvala (Balm-Leaved Red Deadnettle) · L. purpureum (Dead Nettle) · L. purpureum var. incisum (Purple Deadnettle) · L. purpureum var. purpureum (Purple Deadnettle) · L. tomentosum (Creeping Deadnettle)

More Info

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Further Reading

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Notes

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Contributors

Data Sources

Accessed through GBIF Data Portal November 17, 2007:

Identifiers

Footnotes

  1. "Lamium". in Flora of China Vol. 17 Page 157. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
  2. "Lamium maculatum". in Flora of China Vol. 17 Page 158. Missouri Botanical Garden Press. Online at EFloras.org. [back]
  3. Mean = 158.130 meters (518.799 feet), Standard Deviation = 179.860 based on 5,203 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]
Last Revised: 7/15/2012