Aegilops longissima
Ae.longissima has a plant height of 50-120 cm. The spikes are slender and 10~20 cm long, and they break off section by section when mature, but the base is often continuous. 8~15 spikelets, closely attached to the nodes. Rough, with two teeth separated by membranous edges. Distributed in Egypt, Israel, Jordan, Lebanon, and Syria. Born in sandy loam soil, relatively sticky soil, sandstone, gray calcareous grassland soil or loess, open dwarf shrubs, grasslands, fields and roadsides at an altitude of 0-900m. Diploid, chromosome group S1. May be the parent of sticky fruit goat grass and Vavilov goat grass. Some types have the ability to inhibit the pH gene in common wheat and cone wheat.
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