Helictotrichon


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Helictotrichon

 

(formerly Avenastrum), a genus of plants of the family Gramineae. They are perennial herbs with narrow leaf blades. The spikelets have two to six flowers, which are gathered into panicles. The lemma has a strongly jointed awn, which is twisted at the bottom. There are about 90 species of Helictotrichon, distributed primarily in Eurasia and Africa. There are two or three species in America. Sixteen species are found in the USSR, growing predominantly in southern regions on valley and mountain meadows, in steppes, among shrubbery, and along forest edges. Several species, including H. schellianum, H. asiaticum, and H. desertorum, are valuable fodder plants and are eaten by grazing livestock.

REFERENCE

Kormovye rasteniia senokosov i pastbishch SSSR, vol. 1. Moscow-Leningrad, 1950.
References in periodicals archive ?
in bloom Grasses | - silvery blue ones such as festuca glauca, koeleria glauca and helictotrichon, feathery stipa tenuissima and the ornamental pennisetums with their bottlebrush plumes.
in bloom |GRASSES - silvery blue ones such as festuca glauca, koeleria glauca and helictotrichon, feathery stipa tenuissima and the ornamental pennisetums with their bottlebrush plumes.
Tulip sprengeri | |Grasses - silvery blue ones such as festuca glauca, koeleria glauca and helictotrichon, feathery stipa tenuissima and the ornamental pennisetums with their bottlebrush plumes
1a Nanofruticedas cespitosas con Galium pyrenaicum y Helictotrichon sedenense" and the association Jasiono cavanillesii-Helictotrichetum sedenensis Prieto & Bueno ined.
1 3 3 2 2 1 2 cantabricum Koeleria vallesiana 1 2 + 1 1 1 Carex sempervirens 1 + 1 + 1 2 2 Anthyllis vulneraria + 1 1 1 1 2 1 Thymus praecox 1 + 2 + 2 Minuartia verna 1 + + 2 + Androsace villosa + + 1 + Helictotrichon sedenense 1 1 1 + + 1 2 Jurinea humilis + + + + Dethawia splendens 1 + 1 + Saxifraga conifera 1 1 Euphrasia salisburgensis + + Festuca hystrix Galium pyrenaicum 1 + + + + + Arenaria purpurascens 1 1 1 1 1 Gypsophila repens + + Silene acaulis + + 1 Pedicularis pyrenaica + + var.
Compaheras Berberis hispanica + + 1 1 Juniperus hemisphaerica * 1 1 1 Cerastium boissieri * + 1 + Festuca hystris * + * + Ononis aragonensis * 1 * 2 Helianthemum apenninum * * 1 1 Dianthus brachyanthus * * + + Asphodelus albus, Helictotrichon filifblium, Festuca scariosa, Khamnus myrtifolius, Sisymbrium hispanicus, Geranium lucidum, Scabiosa turolensis, Dactylis hispanica, Sedum acre, Poa bulbosa var.
Dentro de la subtribu, las relaciones filogeneticas entre los generos se resuelven en tres lineas evolutivas, representadas por los generos Helictotrichon Besser ex Schult.
Two are highly drought-tolerant grasses, Helictotrichon krylovii (N.
Apart from Brachypodium genuense, they consists of Helictotrichon praetutianum, Bunium bulbocastanum, Potentilla rigoana, Armeria canescens and Achillea tenorii (this latter being almost exclusively in these communities).