WorldFloraDB - Arundo

Characteristics

Perennials, usually tall reeds, rhizomatous. Culms usually robust, rarely rather slender, hollow. Leaf blades cauline, broadly linear, tough, flat, base rounded or cordate; ligule membranous with minutely ciliolate margin. Inflorescence a large, copiously branched, plumose panicle of numerous spikelets. Spikelets wedge-shaped, laterally compressed, florets 2–5, disarticulating above glumes and between florets; rachilla internodes glabrous; glumes subequal, narrow, as long as spikelet, membranous, 3–5-veined; floret callus laterally pilose; lemmas narrow, membranous, rounded on back, 3–7-veined, plumose below middle with spreading silky-white hairs, tapering to an entire or bidentate apex tipped by a straight awnlet; palea 1/2–2/3 length of lemma body, keels glabrous or shortly ciliate. x = 12.

More

Perennials, mostly reeds with long canes, bisexual, rhizomatous. Culms woody and persistent. Leaves: ligule a short ciliate membrane; blade rolled in bud. Inflorescences paniculate, plumose. Spikelets pedicellate, laterally compressed, with 2–7 bisexual florets, disarticulating between florets; rachilla prolonged beyond bisexual florets with incomplete florets or terminating at a bisexual floret. Glumes 2, ±equal, awnless, carinate to non-carinate, 3–5-nerved. Lemma entire or 2-lobed, awnless to 1-awned, rounded on back, 3–9-nerved; lobes often tapering to setae; awn median, non-geniculate. Palea relatively short to long (from 1/2 to 2/3 lemma length). Hilum short.

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Cultivation

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