Subquadrangular

Subquadrangular [ Botany ]
Synonym: Sub-square

Dictionary of botanic terminology - index of names

Imperfectly or less than completely quadrangular.

[Formed by the prefix *"Sub-"* meaning partly, somewhat + *"Quadrangular"* meaning having the shape of a quadrangle]
Cross section of a subquadrangular stem of Harrisia jusbertii	Sub-quadrangular represent the shape of a plant organ (especially a stem) having four angles in cross section, and consequently four sides, but not having the perfect shape of a quadrangle.
	The typical subquadrangular stem of many succulent asclepiads (In the photo: Huernia macrocarpa)	A subquadrangular stem of Astrophytum myriostigma forma quadricostata

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