Flowers in sessile umbels, with or without leaves at base.
花生于无梗伞形花序，有或没有叶在基部。
Inflorescences cymose capitula with few sessile flowers, peduncle to 3 cm with recurved appressed fine hairs.
聚伞头状花序，着生数量较少的花朵，花梗约3厘米，有内弯的（？）贴伏细毛。
Conclusion: PPH is a simple, safe, effective method with minimal invasion and few complications for rectal sessile polyp.
结论：PPH切除直肠广基息肉是一种简便、安全、有效和术后并发症少的微创治疗方法。
Objective To investigate the value and safety of endoscopic mucosal resection in elderly patients with large sessile colorectal polyps.
目的探讨内镜黏膜切除术对老年广基息肉病变的治疗价值及安全性。
Control group 20 patients (28 foci) with the sessile list polyps were treated by using hot probe.
对照组广基扁平息肉息者20例，28枚息肉，行内镜下热凝电极治疗。
Because of a sessile lifestyle combined with unstable pollination environments, different flowering plants often exhibit various reproductive strategies.
由于植物固着生长的特性，加之传粉环境的不稳定性，有花植物在不同的生境中常表现出多样的繁殖策略。
Because of a sessile lifestyle combined with unstable pollination environments, different flowering plants often exhibit various reproductive strategies.
由于植物固着生长的特性，加之传粉环境的不稳定性，有花植物在不同的生境中常表现出多样的繁殖策略。
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