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(plantain), a genus of plants of the family Plantaginaceae. The plants are annual or perennial herbs, usually with a basal rosette of leaves or a leafless flower stem. Some species are subshrubs, and some have a branched, leafy stem. The small, inconspicuous flowers are in a dense terminal spike or head. The fruit is a capsule that opens along a transverse crack.

There are approximately 250 species of plantain. They are found throughout the world except for many tropical regions. Approximately 30 species are encountered in the USSR, growing mainly near buildings, along roads, and in meadows. The best-known species are the hoary plantain (P. media), the great plantain (P. major), and the ribwort (P. lanceolata). All three are perennial herbs.

The seeds of most species contain mucilage and the glycoside aucubin. The seeds of P. psyllium and the branched plantain (P. indica) are used in medicine and industry. The great plantain and P. psyllium are used medicinally, since they contain carotene, vitamin C, and phytoncides. An infusion of their leaves is used as an expectorant, and the juice is used to improve digestion in the treatment of gastritis and enteritis.

References in periodicals archive ?
2] responses in Raphanus raphanistrum and Plantago lanceolata: assessing the potential for evolutionary change with rising atmospheric C[O.
A rise in the incidence of teratological changes in Plantago lanceolataL seedlings of the 5th post accident in the 30 kilometer area of the Chernobyl Atomic Electric Power Station.
Specifically, Danthonia and Panicum were more susceptible to Pythium than Anthoxanthum and Plantago (pairwise contrasts in Table 1, [ILLUSTRATION FOR FIGURE 2 OMITTED]).
The seeds of medicinal plants were Plantago sp, Alyssum spp, Portulaca oleracea, Sesamum indicum, Origanum majorana, Trigonella foenum, Anethum graveolens, Melilotus officinalis, Trachyspermum ammi, Cuminum cyminum, Lactuca sativa and Lallemantia royleana that collected from medical fields.
6); Parthenium hysterophorus (1, 2, 3, 6, 7, 11); Plantago major (10, 13, 14); Solanum nigrum (6, 7, 10); Sonchus asper (3, 6, 7, 11); Tagetes minuta (11); Taraxacum officinale (6, 7) and Vicia sativa (6).
We quote family of Convolvulaceae represented by Calystegia sepium, followed by family of Iridaceae represented Iris Pseudacurus, and family of Plantaginaceae by Plantago crasiifolia.
Plantago Asiatica - it is used for alleviating problems concerning urination and inflammation of the urinary tract.
Nueve especies de las 13 identificadas existen en forma silvestre: Arceuthobium vaginatum, Barkleyanthus salicifolius, Cosmos parviflorus, Didymaea alsinoides, Gnaphalium canescens, Pinus hartwegii, Plantago australis, Simsia amplexicaulis y Symphoricarpos microphyllus.