Heliotropium


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Heliotropium

 

a genus of plants of the Boraginaceae family. They are shrubs, underbrush, and herbs with alternate leaves. The blossoms are small and gathered into scrolls; the corolla is white or violet, with a short tube and a pentapartate limb. The fruit breaks into four nutlike parts. There are approximately 220 species distributed in tropical and subtropical regions, more rarely in the south of the temperate zone. In the USSR there are 22 species, which grow in Middle Asia (chiefly), in the Caucusus, the southern European part of Russia, and in the Altai; they grow on dry slopes, often in alkaline soils and weedy places. Some species of Heliotropium (H. europaeum, H. lasiocarpum) contain a poisonous alkaloid, cynoglossin, that causes affection of the nervous system (paralysis) in animals. Well-known among cultivated Heliotropium are ornamental varieties with pleasant scents, descended from wild-growing underbrush in Peru—H. peruvianum and H. corymbosum. The flowers of Heliotropium contain a fragrant volatile oil.

T. V. EGOROVA

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Johnston, 1928; Perez-Moreau & Cabrera, 1983; Forther, 1998; Correa, 1999, sub Heliotropium chrysanthum Phil.
Herbaceous annual species commonly found within central Texas cedar glades include Heliotropium tenellum (white heliotrope), Centaurium texense (Griseb.
En esta etapa se destacan tambien, hierbas del genero Heliotropium, Acmella, Verbesina, Desmodium, Indigofera, Asclepias, y Sida, este habito es muy comun en la fase inicial del proceso de colonizacion, donde especies pioneras, como las nombradas anteriormente, se dispersan de forma facil y rapida ampliando su rango de distribucion y en la mayoria de las veces facilitando la aparicion de especies pioneras de larga duracion (Vargas, 2007).
Heliotropium lasiocarpum Fisch and Mey identified as cause of veno-occlusive disease due to a herbal tea.
Die inffagenerische gliederung der gattung Heliotropium L.
Mishishinua, H mishikasha 31 Heliotropium incanum Ruiz Azularia Ar & Pav.
Algunas son pantropicales: Acacia, Mimosa, Euphorbia, Hibiscus, Buddleia,Rhus, Cassia, Boerhavia, Jatropha, Aristida, Croton, Panicum, Ipomoea,Commelina, Heliotropium, Prosopis, entre otras.
1]-Erythroxylum havanense + r + 1 1 + Chrysophyllum oliviforme r r r r 1 Casearia hirsuta r + r 1 r Urochloa humidicola 1 2 2 r + 1 Heliotropium indicum r + r + Commelina erecta + r + r Desmanthus virgatus 1 r r 1 Li-Gouania lupuloides 2 1 r 1 1 + Serjania diversifolia + + r r + Salacia nipensis + + r r Ep-Tillandsia recurvata r r r 1 Differentials of Diospyretosum grisebachii and Simaroubetosum laevis [E.
The vegetation at Clifton area (undisturbed permanent dunes) is dominated by Ipomoea pescaprae, Suaeda fruticosa, Salsola imbricata, Heliotropium bacciferum subsp.
La mayor parte son tolerantes al medio acuoso (bajo condiciones ecologicas de alta salinidad y perturbacion, cubriendo grandes areas en el borde del lago) como Amarcmthus hybridus, Heliotropium curassavicum, Chenopodium murale, Tripogandra purpurascens, Flaveria trinervia, Sanvitalia procumbens, Chloris virgata, Oenothera pubescens, Plantago major y Solanum americanum.
Goose grass, Bermuda grass, wiregrass, fowl foot 66252 Entada africana Guill et Perr Entada 68854 Erythrina senegalensis DC Senegal coral tree, Parrot tree, coral tree 2314388 Fadogia erythrophloea Not found Hutch & Dalziel 39365 Ficus congensis Engl Swamp or hippo fig 2308048 Heliotropium indicum L.
La estructura vertical diferencia 4 estratos: 1) herbaceo y gramineo, de cobertura completa con predominio de Trichloris crinita; Solanum argentinum, Heliotropium sp.