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词汇 Marara
分类 英语词汇 英语翻译词典
释义

Marara

英语百科

Aiphanes

A small palm stands in front of a square-mesh wire fence. The leaves are arranged somewhat loosely along the stem, not tightly clustered as they are in many other palms. Only the lower portion of the stem is free of leaves and that area is grey-brown with green tissue showing through in several places, most notably at the old leaf scars which encircle the stem at regular intervals. The stem and leaves are covered with long spines. The leaflets are wedge-shaped – narrow at the base, much broader towards the ends, but then narrowing again towards their tips.
Aiphanes occurs in northwestern South America, south into Bolivia and east to northeastern Venezuela, in Panama and in Trinidad, Puerto Rico and eastern Hispaniola.
Stem of Aiphanes minima showing spines and leaf scars
Details of the stem, petioles and leaf bases of Aiphanes horrida showing its spiny nature

Aiphanes is a genus of spiny palms which is native to tropical regions of South and Central America and the Caribbean. There are about 26 species in the genus (see below), ranging in size from understorey shrubs with subterranean stems to subcanopy trees as tall as 20 metres (66 ft). Most have pinnately compound leaves (leaves which are divided into leaflets arranged feather-like, in pairs along a central axis); one species has entire leaves. Stems, leaves and sometimes even the fruit are covered with spines. Plants flower repeatedly over the course of their lifespan and have separate male and female flowers, although these are borne together on the same inflorescence. Although records of pollinators are limited, most species appear to be pollinated by insects. The fruit are eaten by several birds and mammals, including at least two species of amazon parrots.

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