Lamium multifidum

Atasagun, Bayram, Aksoy, Ahmet & Martin, Esra, 2015, Contribution to the systematic knowledge of Lamium multifidum and L. orientale (Lamiaceae), Phytotaxa 203 (2), pp. 147-158 : 148

Lamium multifidum

Description:—Annual herb. Root length 3.5–16.5 cm. Stem is quadrangular, ascending to erect and branched at the base. The stem is approximately 7-37 cm height, patent hirsute or pilose, sparsely retrorse. Basal leaves are simple, ovate to ovate-oblong, 11–55 × 10–34 mm, rarely pilose, petiolate (petiole 8–39 mm). Median leaves 8–55 × 7–37 mm, petiolate (petiole 2–50 mm), edges crenate to doubly crenate, venation reticulate-pinnate. Upper leaves coarsely dentate to pinnatifid. Bracts are ovate to oblong, 13–40 × 13–15 mm, pinnatifid or pinnatipartit. Bracteoles are oblanceolat or ovate, 2.4–6.8 × 1.2–3.3 mm, hirsute. Calyx is 4–15 mm, with ciliate hairs, bilabiate 10–veined, upper lip lanceolate. Bilabiate corolla is deep mauve–pink hood and, purple spotted lower lip. The corolla is 19–30 mm. Stigma is bifid. Stamens are didynamous.Nutlets are 2.28–2.6 × 1.04–1.45 mm, ovate in outline and trigonous in cross section. The nutlets are dark brownish-blackish and surface glabrous ( Fig. 1 ).

Specimens seen:— TURKEY. B8 Erzincan: Refahiye to Çatalçam way, fallowing lands, 1545 m, 39° 58´832ʺ N, 038° 44´247ʺ E, 21 June 2009, A. Aksoy 2345 et Atasagun (ERC!).

Figures

FIGURE 1. Lamium multifidum A. General appearance. B. Basal leaf. C. Median leaf. D. Upper leaf. E. Bract. F.Bracteole. G. Calyx. H. Corolla. I–J. Nutlets.