Morphological features
Morphological characteristics Physical shape Leaves papery, densely denticulate, lower ovoid or several reniform, gradually ascending to ovate to ovate-oblong, 6-12 cm long, 3-12 cm wide, apically abruptly shortened apically Tip or upper short acuminate to acuminate, base broadly cordate, obtuse, equal ears, or superficially shallowly cordate and ears overlapping, slightly unequal, veins on both sides are pinched Powdery pubescent, abaxially densely conspicuous; leaf veins 7, all from basement, innermost one pair stout, up to a few leaf tops, downward often along petiole parallel decurrent; petioles vary in length, lower Up to 9 centimeters long, 1-2 centimeters long in the middle, sometimes apical and sometimes ambrosial, with very fine powdery pubescence; leaf sheaths 1/3 as long as petioles. Flowers unisexual, dioecious, accumulate with spikes opposite to leaves. Biological characteristics Male inflorescences 4-5 cm long, ca. 3 mm in diam.; peduncle 2-3 cm long, minutely pulverulose puberulent; inflorescence axis glabrous; sepals suborbicular, sometimes base narrowly narrow, ca. 1.5 in diam. Millimeters, glabrous, shortly stipitate, peltate; stamens 2, anthers elliptic, filaments very short. Female inflorescences 1.5-2.5 cm in length and ca. 4 mm in diam., prolonged in fruit; total pedicels and inflorescence axis identical to male inflorescences, but sepals slightly smaller, 0.9-1 mm in diam.; ovary ovate, lower and inflorescences Axes connate, stigma 3, ovate, apical. The lower part of the berry is embedded in the inflorescence axis and merges with it. The upper part is round, with a umbilicated bulge at the top, glabrous, about 2 mm in diameter. Flowering from July to October. The valve is a series of gas emergency shut off solenoid valves, specially designed as gas pipe breaker for emergency use. It can be connected with gas leaking detection sensor, fire alarm circuit or other intelligent sensor modules so that on site or remote shut down on gas supply (manually or automatically) is possible, hence ensuring the safety on gas usage. The valve features an auto-close when strong vibration is detected. After close, manual operation is required to turn on the valve. This feature meets safety regulations in the event of an accident. Small Solenoid Valve,Lpg Solenoid Valve,Shut Off Solenoid Valves,High Pressure Solenoid Valve Rictron Industrial Co., Ltd , https://www.szrictron.com