Stachys

Marsh hedge nettle Stachys palustris, copyright Peter M. Dziuk.

Belongs within: Lamiaceae.

Stachys is a cosmopolitan genus of herbs and shrubs with hairy leaves, some of which are cultivated for their ornamental foliage.

Characters (from Black & Robertson 1965): Hairy herbs; flowers in false-whorls, in axils of reduced floral leaves, forming terminal leafy spikes. Calyx campanulate, about ten-ribeed, with cylindrical tube and five pointed subequal teeth; corolla with cylindrical tube, upper lip erect and hooded, lower lip spreading, three-lobed; stamens 4, in pairs, parallel, the lower pair longer; anthers glabrous, anther-cells divaricate, opening by a common slit; nutlets obovoid.

<==Stachys
    |--S. annua C55b
    |--S. arvensis BR65
    |--S. aspera C55b
    |--S. chonotica D03
    |--S. cretica Linnaeus 1753 PL04
    |--S. dinteri CV06
    |--S. germanica H91
    |--S. melissaefolia O88
    |--S. olympica [incl. S. lanata] BR65
    |--S. palustris C55a
    `--S. recta H91

*Type species of generic name indicated

REFERENCES

[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.

[CV06] Craven, P., & P. Vorster. 2006. Patterns of plant diversity and endemism in Namibia. Bothalia 36 (2): 175-189.

[D03] Dusén, P. 1903. The vegetation of western Patagonia. In Reports of the Princeton University Expeditions to Patagonia, 1896-1899, vol. 8—Botany (W. B. Scott, ed.) pp. 1-34. The University: Princeton (New Jersey).

[H91] Hubálek, Z. 1991. Biogeographic indication of natural foci of tick-borne infections. In Dusbábek, F. & V. Bukva (eds) Modern Acarology: Proceedings of the VIII International Congress of Acarology, held in České Budĕjovice, Czechoslovakia, 6–11 August 1990 vol. 1 pp. 255-260. SPB Academic Publishing: The Hague.

[O88] Ohba, H. 1988. The alpine flora of the Nepal Himalayas: An introductory note. In The Himalayan Plants vol. 1 (H. Ohba & S. B. Malla, eds) The University Museum, University of Tokyo, Bulletin 31: 19-46.

[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.