A racemose inflorescence with the flowers alternate and sessile along a common unbranched axis, flowers single or (less precisely) in short clusters;
(In Cyperaceae) an aggregation of spikelets or spicoids, sometimes the whole structure is similar in appearance to a spikelet.
A more or less elongate inflorescence, with sessile (lacking a stalk) flowers attached directly by their base.
An unbranched inflorescence of sessile flowers or spikelets.
Unbranched, elongated inflorescence (flower cluster) in which the flowers are sessile (stalkless).
A type of flower cluster. The individual flowers lack stems and are attached directly to the long central stalk.
A flower cluster in which the flowers are sessile and densely arranged along a common rachis. The lower flowers blossom before the upper.
An unbranched, elongated flower grouping in which the individual flowers are sessile (attached without stalks).
An arrangement of flowers similar to a raceme, but the flowers are sessile.
An unbranched inflorescence in which the flowers are attached directly to the axis (stalk) and have no individual stems. (Compare raceme).
Inflorescence with numerous sessile flowers.
A long flower cluster with each flower attached to the stalk, either directly or nearly so.
An unbranched raceme without stalks to the individual flowers.
A type of inflorescence where the flowers are borne on a long, usually upright stem. Unlike a raceme, a spike has no separate flower stalks, as in gladioli.
An elongated, unbranched cluster of stalkless or nearly stalkless flowers.
An unbranched inflorescence in which the flowers are attached directly to the axis (main flowering stalk), without pedicels.
A type of inflorescence where the flowers are borne on an elongated, usually upright stem. Unlike a raceme, a spike has flowers lacking individual stalks. An example is gladiolus. In gardening the term spike is used more loosely for any elongated, unbranched inflorescence.
The dominant peak in the record of an action potential or electroencephalogram.