fruiting head造句

• While maturing the fruiting head's pedicels undergo a stiffening process and remarkable elongation to some 300mm.
• "' Infructescence "'( fruiting head ) is defined as the ensemble of fruits derived from the ovaries of an inflorescence.
• The fruiting head dries rapidly and is shed as a single unit, which the rolls away ( tumbles ), born by the wind.
• When the fruiting head separates at its junction with the stalk, it is easily moved by light breezes, scattering seeds as it rolls.
• I edged the bed in blue fescue ( Festuca ovina ` glauca'), which grows in clumps and sends up a bluish haze of fruiting heads.
• The fruiting head is near-spherical and up to 30 cm in diameter, usually with about 15 20 closely set fruits which are conical, 10 15 cm in diameter, and five-to six-angled by the pressure of growth.
• In common with other members of the family, this species forms large spherical fruiting heads which detach from the plant at maturity and efficiently disperse seeds while being bowled along by the wind ( see tumbleweed ).
• It is distinguished from " Ammocharis " ( " i . e . " other species of " Ammocharis " ) by the presence of zygomorphic flowers, as opposed to actinomorphic, and by its seed dispersal mechanism, with a wind blown indehiscent infructescence ( fruiting head ) that gave it its name.