Spiralgrass (Tuctoria)
Description
Tuctoria species have their spikelets spirally arranged on the axis; lemmas are entire (with a smooth, even margin) or denticulate (finely toothed), and often have a centrally placed short, sharp tip (mucro). The inflorescence is not cylindrical (as in Neostapfia), and the spikelets are laterally flattened. The lemmas are narrower, the tip is mucronate or otherwise entire or denticulate. The caryopsis is not sticky, and the brown embryo is visible throughout the light-colored pericarp.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum: Magnoliophyta
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Class: Liliopsida
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Order: Cyperales
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Family: Poaceae
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Genus: Tuctoria
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