Exact; accurate; precise; rigorously nice; as, to keep strict watch; to pay strict attention.

Governed or governing by exact rules; observing exact rules; severe; rigorous; as, very strict in observing the Sabbath.

Rigidly; interpreted; exactly limited; confined; restricted; as, to understand words in a strict sense.

rigidly accurate; allowing no deviation from a standard; "rigorous application of the law"; "a strict vegetarian"

Upright, or straight and narrow; -- said of the shape of the plants or their flower clusters.

Straight and erect.

erect, rigid, upright, stiff ("stricta")

Stiff and rigid.