During a trip to the southeastern portion of the United States, you encounter a

Question

During a trip to the southeastern portion of the United States, you encounter a grass specimen unlike any you've ever seen. You notice a perfect inflorescence emerging from this species. Careful examination reveals that the culm internodes are solid with vascular bundles scattered within the pith. Also, the ligules at the base of the leaf blades are membranous. Identify the particular grass subfamily to which this species belongs. Then, characterize the leaves, stems, and roots of this subfamily. Finally, characterize the inflorescence, embryo, and cytology (chromosome characteristics) of this subfamily.

Explanation / Answer

This type of particular grass is Johnson Grass.

Sorghum halepense

Genus= Sorghum

Family=Poaceae

Subfamily= Panicoideae

Leaves attaches through ribbed leaf sheath, leaves have larger glaborous blades.

Roots have extensive rhizomes. The stems are lighter green in color.

The plant is diploid with presence of 40 chromosomes.

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