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Teucrium racemosum

Description

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Family Lamiaceae

Herbs, sometimes subshrubs or shrubs , annual or perennial , usually aromatic . Stems and branches usually 4-angled. Leaves opposite, rarely whorled or alternate, simple to pinnately dissected or compound , without stipules. Inflorescences generally compound, sometimes flowers solitary and axillary ; verticillasters 2- to many flowered, subtended by leaves or bracts. Flowers bisexual , zygomorphic, rarely subactinomorphic, bracteolate or not. Calyx persistent , 5-toothed, 2-lipped; upper lip 3-toothed or entire (deciduous in Scutellaria) ; lower lip 2- or 4-toothed; tube sometimes hairy annulate inside. Corolla limb usually 2-lipped; upper lip 2-lobed and lower 3-lobed, rarely upper lip entire and lower 4-lobed, also rarely limb (4- or) 5-lobed; tube hairy annulate inside. Stamens epipetalous , 4 or 2, free , rarely filaments connate , sometimes one staminodial; anther 1- or 2-celled, usually dehiscing longitudinally; disc persistent. Ovary superior, 2-celled and each cell 2-ovuled and style subterminal , or ovary 4-parted and each lobe 1-ovuled and style gynobasic (from bases of ovary lobes) with 2-cleft apex. Fruit usually 4 dry nutlets . Seeds with or without endosperm.

Approximately 3500 species in 220 genera, distributed worldwide, but mostly in the Mediterranean region and SW Asia. China has 807 species in 96 genera.[1]

Genus Teucrium

Herbs or subshrubs , with rhizomes or stolons. Stems erect or ascending , simple or branched from base . Leaves simple, petiolate or subsessile , cordate to lanceolate, penniveined. Verticillasters 2-6-flowered, in false spikes, terminal racemes , or panicles of racemes; bracts rhombic-ovate to linear-lanceolate, margin entire or dentate . Calyx 10-veined, throat glabrous to pilose annulate ; tube tubular to campanulate , swollen in front at base; limb equally 5-toothed to 2-lipped, upper lip 3-toothed, lower lip 2-toothed. Corolla 1-lipped; tube included or exserted, not hairy annulate inside; limb 5-lobed, with middle lobe circular or spatulate , occasionally 2-lobulate; lateral lobes 4, small. Stamens 4, anterior 2 slightly longer , all exserted from posterior sinus of corolla; anther cells divaricate . Ovary globose . Style equal to or slightly longer than stamens, equally or subequally 2-cleft at apex. Nutlets obovoid , glabrous, smooth to netted , areole ca. 1/2 as long as nutlet .

Approximately 260 species: worldwide, but abundant in the Mediterranean region; 18 species in China.[2]

Physical Description

Flowers: Bloom Period: March, April, May, June, July, August, September, October, November. • Flower Color: near white, white

Size/Age/Growth

Size: 6-12" tall.

Habitat

Typically found at an altitude of 0 to 1,023 meters (0 to 3,356 feet).[3]

Biology

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Growth

Culture: Space 9-12" apart.

Sunlight: Sun Exposure: Full sun .

Taxonomy

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Similar Species

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Members of the genus Teucrium

ZipcodeZoo has pages for 533 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them:

T. abutiloides · T. abyssinicum · T. achaemenis · T. ackermannii · T. aff. chamaedrys · T. affine · T. africanum · T. afrum · T. afrum afrum · T. ajugaceum · T. albarracini · T. albicaule · T. albidum · T. album · T. algarbiense · T. almeriense · T. alopecurus · T. alpestre · T. alpestre subsp. gracile · T. alpinum · T. alvarezii · T. alyssifolium · T. amplexicaule · T. angustifolium · T. angustissimum · T. anlungense · T. antiatlanticum · T. antitauricum · T. apollinis · T. aragonense · T. arduini · T. arduinoi · T. arenarium · T. argenteum · T. argutum · T. argutum var. incisum · T. aristatum · T. aroanium (Gray Creeping Germander) · T. arvense · T. asiaticum · T. assiaticum · T. atratum · T. aureiforme · T. aureum · T. aureum subsp. turdetanum · T. baeticum · T. balfourii · T. balthazaris · T. barbarum · T. barbatum · T. barbeyanum · T. belion · T. bellion · T. betonicaefolium · T. betonicum · T. bicolor (Oreganillo) · T. bicoloreum · T. bidentatum · T. boreale · T. botrys (Cut Leaved Germander) · T. brachyandrum · T. bracteatum · T. brevifolium · T. brevispicum · T. buxifolium · T. buxifolium f. tomentosum · T. buxifolium subsp. hifacense · T. buxifolium subsp. rivasii · T. buxifolium var. rivasii · T. buxifolium var. tomentosum · T. buxifolius · T. cabense · T. calycinum · T. campanulatum · T. canadense (American Germander) · T. canadense var. canadense L. · T. canadense littorale · T. canadense occidentale · T. canadense subsp. viscidum · T. canadense var. canadense (American Germander) · T. canadense var. hypoleucum (Canada Germander) · T. canadense var. occidentale (American Germander) · T. canadense var. occidentale (Gray) McClint. & Epling · T. canariense · T. cantabricum · T. canum · T. capense · T. capitatum · T. capitatum subsp. gracillimum · T. caroli-paui · T. carolipaui · T. carolipaui subsp. fontqueri · T. cartaginense · T. carthaginenense · T. carthaginense · T. cavanillesianum · T. cavernarum · T. cerrouxi · T. chamadry · T. chamaedris

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 December 06, 2007:

Identifiers

Footnotes

  1. Xi-wen Li & Ian C. Hedge "Lamiaceae". in Flora of China Vol. 17 Page 50. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
  2. "Teucrium". in Flora of China Vol. 17 Page 56. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
  3. Mean = 171.320 meters (562.073 feet), Standard Deviation = 141.760 based on 224 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]
Last Revised: 2009-07-03