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・ Plantago
・ Plantago amplexicaulis
・ Plantago aristata
・ Plantago asiatica
・ Plantago cordata
・ Plantago coronopus
・ Plantago cretica
・ Plantago debilis
・ Plantago elongata
・ Plantago erecta
・ Plantago eriopoda
・ Plantago hawaiensis
・ Plantago hedleyi
・ Plantago holosteum
・ Plantago hookeriana
Plantago lanceolata
・ Plantago leiopetala
・ Plantago major
・ Plantago maritima
・ Plantago media
・ Plantago moorei
・ Plantago nivalis
・ Plantago nubicola
・ Plantago ovata
・ Plantago patagonica
・ Plantago princeps
・ Plantago rhodosperma
・ Plantago rigida
・ Plantago rugelii
・ Plantago subnuda


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Plantago lanceolata : ウィキペディア英語版
Plantago lanceolata

''Plantago lanceolata'' is a species of genus ''Plantago'' known by the common names English plantain, narrowleaf plantain, ribwort plantain, ribleaf, buckhorn plantain, buckhorn, and lamb's tongue. It is a common weed of cultivated land.
The plant is a rosette-forming perennial herb, with leafless, silky, hairy flower stems (). The basal leaves are lanceolate spreading or erect, scarcely toothed with 3-5 strong parallel veins narrowed to short petiole. Grouping leaf stalk deeply furrowed, ending in an ovoid inflorescence of many small flowers each with a pointed bract. Each flower can produce up to two seeds. Flowers 4 mm (calyx green, corolla brownish), 4 bent back lobes with brown midribs, long white stamens. Found in British Isles, scarce on acidic soils (pH < 4.5). It is considered an invasive weed in North America. It is present and widespread in the Americas and Australia as an introduced species.
==History==

Considered to be an indicator of agriculture in pollen diagrams, ''P. lanceolata'' has been found in western Norway from the Early Neolithic onwards, something considered an indicator of grazing in that area.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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