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Marrubium vulgare

(Common Hoarhound)

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 English:

Common Hoarhound, Horehound, White Horehound

Common Names in French:

Marrube Blanc, Marrube Vulgaire

Common Names in German:

Andorn

Common Names in Latin:

Herba Marrubii

Common Names in Portuguese:

Marroio, Marroio Branco

Common Names in Romanian:

Bălţătură, Unguraş

Common Names in Russian:

šandra Obyknovennaja, шандра обыкновенная

Common Names in Spanish:

Marrubio, Marrubio Común

Description

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Physical Description

Species Marrubium vulgare

Stems branched or unbranched, 30-40 cm tall, base woody, densely appressed lanate-villous. Leaves reduced upward; petiole 0.7-1.5 cm; leaf blade ovate to circular, 2-3.5 × 1.8-3 cm, adaxially polished, corrugate, and sparsely villous , abaxially densely scabrid strigose-villous, base broadly cuneate to rounded , margin dentate-serrate, apex obtuse to subrounded. Verticillasters axillary , many flowered, widely spaced basally, crowded upward, globose , 1.5-2.3 cm in diam.; bracts subulate , as long as to longer than calyx tube , reflexed . Calyx 10-veined; teeth 10, main 5 long, alternate with to 5 accessory teeth, 1-4 mm, subulate, hooked . Corolla white, ca. 9 mm; tube ca. 6 mm, densely pubescent outside, pilose annulate inside; upper lip as long as or slightly shorter than lower lip, straight or spreading , 2-lobed; middle lobe of lower lip reniform, undulate , 2-cleft. Nutlets triquetrous , ovoid , warty. Fl. Jun-Aug, fr. Jul-Sep. [source]

Habit: Subshrub , Forb/herb

Flowers: Whitish flowers.

Foliage: Summer foliage: Wooly white foliage .

Size/Age/Growth

Size: 1-3' tall.

Habitat

Dry grassy loess , slopes [1].

Typically found at an altitude of 0 to 4,936 meters (0 to 16,194 feet).[2]

Biology

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Reproduction

Duration: Perennial

Growth

Culture: Space 1' apart.

Soil: Good in any dry soil.

Sunlight: Sun Exposure: Sun.

Taxonomy

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Notes

Name Status: Accepted Name .

Last scrutiny: 15-Mar-2000

Similar Species

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Members of the genus Marrubium

ZipcodeZoo has pages for 6 species, subspecies, varieties, forms, and cultivars in this genus:

M. cylleneum (Horehound) · M. incanum (Horehound) · M. praecox (Hoarhound) · M. rotundifolia (Silver Edged Horehound) · M. supinum (Scallop Shell) · M. vulgare (Common Hoarhound)

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 19, 2007:

Identifiers

Footnotes

  1. "Marrubium vulgare". in Flora of China Vol. 17 Page 104. Missouri Botanical Garden Press. Online at EFloras.org. [back]
  2. Mean = 359.690 meters (1,180.085 feet), Standard Deviation = 655.540 based on 3,410 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]
Last Revised: 7/15/2012