Rachilla definition

rə-kĭlə
rachillae
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Frequency:
The axis of a spikelet of a grass or sedge.
noun
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The central stalk of a grass spikelet, to which the glumes and florets are attached.
noun
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The axis of a spikelet of a grass or sedge.
noun
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The stalk that bears the florets in the spikelets of grasses and similar plants, such as rushes and sedges. The rachilla often has a zigzag shape, with florets at each point at which the orientation of the rachilla turns.
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(botany) The part of a spikelet, in grasses and sedges, that bears the florets.
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(botany) A rachis of secondary or higher order in leaves and ferns that are compound more than once.
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Other Word Forms

Noun

Singular:
rachilla
Plural:
rachillae

Origin of rachilla

  • New Latin diminutive of rachis

    From American Heritage Dictionary of the English Language, 5th Edition

Rachilla Sentence Examples

  • It frequently extends downwards a little on the rachilla, forming with the latter a swollen callus, which is separated from the free portion by a furrow.

  • In many-flowered spikelets the rachilla is often jointed and breaks into as many pieces as there are fruits, each piece bearing a glume and pale.

  • Rachilla not produced beyond the flowers.

  • Spikelets oneto indefinite-flowered; in the one-flowered the rachilla frequently produced beyond the flower; rachilla generally jointed above the empty glumes, which remain after the fruiting glumes have fallen.

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Words near rachilla in the Dictionary