Glandular Trichomes of Stachys annua (L.) L. supsp. annua var. annua (Lamiaceae)

İlkay Öztürk Çalı, Arzu Cansaran


Glandular trichomes of Stachys annua (L.) L. supsp. annua var. annua (Lamiacea) were studied to provide useful information for taxonomy of the plant in the paper. The leaves of the plant are used in the treatment of colds and diabetes and it is named “Hacıosmanotu” in Turkey. Stem, leaf, calyx and corolla samples of the plant were put in to 70% ethyl alcohol to determine glandular trichome types and glandular trichome distribution. S. annua supsp. annua var. annua had both peltate and capitate glandular trichomes. Peltate trichomes had four, five, six or eight-celled secretory head. Capitate glandular ones were three types. These were subtype IIA, subtype IIB and subtype IIC capitate glandular trichomes. Peltate trichomes were seen on both vegetative and reproductive organs, whereas capitate glandular ones were observed on only reproductive organs.


Glandular trichome; Stachys annua subsp. annua var. annua; Lamiaceae

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