Teucrium

Belongs within: Lamiaceae.

Teucrium, germanders, is a cosmopolitan genus of labiate herbs with a single lower corolla lip, the upper lip of most Lamiaceae being absent.

Characters (from Hickman 1993): Annual or perennial, glabrous to short-hairy. Stems ascending to erect, branched or not. Leaves petioled, crenate to deeply lobed, lobes oblong. Flower with calyx more or less radial, ten-veined, five-lobed, lobes subequal; corolla one-lipped, tube split above, lip five-lobed, more or less flat, distal lobe much larger than lateral lobes, tip rounded, lateral lobe tips acute to obtuse; stamens 4, lower pair generally larger than upper; style lobes generally equal.

<==Teucrium
    `--T. sect. Isotriodon subsect. PycnobotrysSP08
         |--T. japonicumSP08
         |--T. quadrifariumSP08
         |--T. scabrum Suddee & Paton 2008SP08
         `--T. viscidumSP08
Teucrium incertae sedis:
  T. argutumPWP96
  T. botrysC55b
  T. brevifoliumPT98
  T. chamaedrysC55b
  T. corymbosumBR65 [incl. T. corymbosum var. microphyllum Baker 1896 (n. n.)B96]
  T. cubenseH93
    |--T. c. ssp. cubenseH93
    `--T. c. ssp. depressumH93
  T. decaisneiAGF98
  T. divaricatumPT98
  T. fruticansP01
  T. glandulosumH93
  T. grandiusculumBR65
  T. integrifoliumBR65
  T. marumBR65
  T. montanumC55a
  T. polium Linnaeus 1753PL04
    |--T. p. var. poliumD17
    |--T. p. var. bombycinumD17
    |--T. p. var. flavescens [incl. T. aureum]D17
    |--T. p. var. helichrysoides Diels 1917D17
    `--T. p. var. vulgareD17
  T. racemosumBR65
    |--T. r. var. racemosumBR65
    |--T. r. var. triflorumBR65
    `--T. r. var. tripartitumBR65
  T. sessiliflorumBR65
  T. shanicumSP08
  T. tomentosumSP08

*Type species of generic name indicated

References

[AGF98] Abd El-Ghani, M. M., & A. G. Fahmy. 1998. Composition of and changes in the spontaneous flora of Feiran Oasis, S Sinai, Egypt, in the last 60 years. Willdenowia 28: 123–134.

[B96] Baker, R. T. 1896. On the botany of Rylstone and the Goulburn River districts. Part I. Proceedings of the Linnean Society of New South Wales 21 (3): 427–466.

[BR65] Black, J. M., & E. L. Robertson. 1965. Flora of South Australia. Part IV. Oleaceae–Compositae. W. L. Hawes, Government Printer: Adelaide.

[C55a] Candolle, A. de. 1855a. Géographie Botanique Raisonée: Ou exposition des faits principaux et des lois concernant la distribution géographique des plantes de l’époque actuelle vol. 1. Librairie de Victor Masson: Paris.

[C55b] Candolle, A. de. 1855b. Géographie Botanique Raisonée: Ou exposition des faits principaux et des lois concernant la distribution géographique des plantes de l’époque actuelle vol. 2. Librairie de Victor Masson: Paris.

[D17] Diels, L. 1917. Beiträge zur Flora der Zentral-Sahara und ihrer Pflanzengeographie. Nach der Sammelausbeute des Freiherrn Hans Geyr von Schweppenburg. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 54 (Beiblatt 120): 51–155.

[H93] Hickman, J. C. (ed.) 1993. The Jepson Manual: Higher Plants of California. University of California Press: Berkeley (California).

[PWP96] Palmer, W. A., B. W. Willson & K. R. Pullen. 1996. The host range of Aconophora compressa Walker (Homoptera: Membracidae): a potential biological control agent for Lantana camara L. (Verbenaceae). Proceedings of the Entomological Society of Washington 98 (4): 617–624.

[PT98] Panitsa, M., & D. Tzanoudakis. 1998. Contribution to the study of the Greek flora: flora and vegetation of the E Aegean islands Agathonisi and Pharmakonisi. Willdenowia 28: 95–116.

[P01] Pennisi, E. 2001. Linnaeus’s last stand? Science 291: 2304–2307.

[PL04] Pohl, G., & I. Lenski. 2004. Zur Verbreitung und Vergesellschaftung von Pennisetum orientale Rich. in Nordeuböa (Griechenland) (Poaceae, Paniceae). Senckenbergiana Biologica 83 (2): 209–223.

[SP08] Suddee, S., & A. Paton. 2008. Teucrium scabrum (Lamiaceae), a new species from Thailand. Kew Bulletin 63 (4): 675–678.