The flowers are wind-pollinated catkins long, the male catkins pendulous, the female catkins erect. Flowers are not scented and borne on pendulous inflorescences. The flowers are heterotristylous, borne in a pendulous panicle inflorescence. The small wind-pollinated flowers are produced in a branched arching to pendulous inflorescence long. The alder usually grows in wet ground, with small, pendulous catkins. The flowers are white or pink, in usually pendulous racemes. Young branches have whitish resin warts and the twigs are slender, hairless, and often pendulous. The flowers are in pendulous racemes, long. Its bark is scabrous and cracked, whitish with pendulous extremities. It has a conical crown with level branches and usually pendulous branchlets. The pendulous, showy flowers have a very large number of stamens. Some textbooks will subdivide the spongy urethra into two parts, the bulbous and pendulous urethra. It has smooth bark, dark green spreading branches and pendulous and pubescent twigs. Male primates have a pendulous penis and scrotal testes. Some fish have slender, pendulous tactile organs near the mouth.