Trichome and Pollen Morphology of Lycopus europaeus L. (Lamiaceae)

Ayla Kaya

doi:10.26650/IstanbulJPharm.2026.1780624

Trichome and Pollen Morphology of Lycopus europaeus L. (Lamiaceae)

Abstract

Background and Aims: Lycopus europaeus L. (Lamiaceae) is a perennial medicinal herb that grows in moist areas and produces white flowers. It contains many secondary metabolites, and L. europaeus has traditionally been used as a natural remedy for coughs, respiratory issues, and insomnia. This study aims to describe the hair characteristics of the stem, calyx, adaxial, and abaxial leaf surfaces, as well as the pollen morphology of L. europaeus.

Methods: The plant was collected during its flowering stage from Bursa, between Bozüyük and İnegöl. Scanning electron microscopy (SEM) was employed for the micromorphological analysis of the trichomes and pollen of L. europaeus. The SEM images were captured using a Zeiss EVO 50 scanning electron microscope.

Results: Covering hairs consist of nonglandular and glandular hairs. The nonglandular hairs are either unicellular or multicellular, characterized by cuticular micropapillae and composed of unbranched, elongated cells. The glandular hairs include peltate and capitate types. Peltate trichomes have a short stalk cell and a broad secretory head with 2-6 cells. Capitate hairs have a globose, unicellular head and a short, unicellular stalk. The plant's pollen grains are hexacolpate, featuring a reticulate exine structure and are prolate in shape (P/E 1.43-1.45 μm). The lumens appear round or nearly polygonal, measuring 0.05-1.27 μm in diameter. The width ranges from 0.10 to 0.55 μm.

Conclusion: This study highlights two key features for identifying L. europaeus in detail: the morphology of trichomes and pollen.

Keywords

References

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Details

Primary Language

English

Subjects

Pharmaceutical Botany

Journal Section

Research Article

Authors

Ayla Kaya ^*
0000-0002-7598-7132
Türkiye

Publication Date

May 21, 2026

Submission Date

September 9, 2025

Acceptance Date

December 21, 2025

Published in Issue

Year 2026 Volume: 56 Number: 1

DOI

https://doi.org/10.26650/IstanbulJPharm.2026.1780624

IZ

https://izlik.org/JA78RD47EH

Cite

RIS / Bibtex

APA

Kaya, A. (2026). Trichome and Pollen Morphology of Lycopus europaeus L. (Lamiaceae). İstanbul Journal of Pharmacy, 56(1), 62-66. https://doi.org/10.26650/IstanbulJPharm.2026.1780624

AMA

1.Kaya A. Trichome and Pollen Morphology of Lycopus europaeus L. (Lamiaceae). iujp. 2026;56(1):62-66. doi:10.26650/IstanbulJPharm.2026.1780624

Chicago

Kaya, Ayla. 2026. “Trichome and Pollen Morphology of Lycopus Europaeus L. (Lamiaceae)”. İstanbul Journal of Pharmacy 56 (1): 62-66. https://doi.org/10.26650/IstanbulJPharm.2026.1780624.

EndNote

Kaya A (May 1, 2026) Trichome and Pollen Morphology of Lycopus europaeus L. (Lamiaceae). İstanbul Journal of Pharmacy 56 1 62–66.

IEEE

[1]A. Kaya, “Trichome and Pollen Morphology of Lycopus europaeus L. (Lamiaceae)”, iujp, vol. 56, no. 1, pp. 62–66, May 2026, doi: 10.26650/IstanbulJPharm.2026.1780624.

ISNAD

Kaya, Ayla. “Trichome and Pollen Morphology of Lycopus Europaeus L. (Lamiaceae)”. İstanbul Journal of Pharmacy 56/1 (May 1, 2026): 62-66. https://doi.org/10.26650/IstanbulJPharm.2026.1780624.

JAMA

1.Kaya A. Trichome and Pollen Morphology of Lycopus europaeus L. (Lamiaceae). iujp. 2026;56:62–66.

MLA

Kaya, Ayla. “Trichome and Pollen Morphology of Lycopus Europaeus L. (Lamiaceae)”. İstanbul Journal of Pharmacy, vol. 56, no. 1, May 2026, pp. 62-66, doi:10.26650/IstanbulJPharm.2026.1780624.

Vancouver

1.Ayla Kaya. Trichome and Pollen Morphology of Lycopus europaeus L. (Lamiaceae). iujp. 2026 May 1;56(1):62-6. doi:10.26650/IstanbulJPharm.2026.1780624