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Diagram of a panicle. In botany, a panicle is a much-branched inflorescence. [1] Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit) be pedicellate (having a single stem per flower). The branches of a panicle are often racemes. A panicle may have determinate or indeterminate growth.
For example, a double raceme is a raceme in which the single flowers are replaced by other simple racemes; the same structure can be repeated to form triple or more complex structures. Compound raceme inflorescences can either end with a final raceme (homoeothetic), or not (heterothetic). A compound raceme is often called a panicle.
The conical compound inflorescence of Aeonium arboreum is a compound panicle composed of minor panicles, some of which are compound in their turn. California buckeye ( Aesculus californica ) has a compound palmate leaf, the leaflets radiating from a central point.
Spiciform panicle that usually reaches 4 to 5 meters (13 to 16 feet) in height, but has a maximum recorded height of 8 meters (26 feet). The total height of the plant when blooming may reach 15 meters (49 feet). The stem at the base of the inflorescence may be 60–90 cm (24–35 in) in height and a very thick 20–40 cm (7.9–15.7 in). [17]
The ellipsoid or pyramidal panicle is 3–7 cm (1.2–2.8 in) high, with lower fascicles of two to five branches. Its spikelets have short pedicels and are borne on the lower half of the branches, growing 4.5–6.5 mm (0.18–0.26 in) long.
A spikelet, in botany, describes the typical arrangement of the inflorescences of grasses, sedges and some other monocots. Each spikelet has one or more florets. [1]: 12 The spikelets are further grouped into panicles or spikes. The part of the spikelet that bears the florets is called the rachilla. [1]: 13
Corymb is a botanical term for an inflorescence with the flowers growing in such a fashion that the outermost are borne on longer pedicels than the inner, bringing all flowers up to a common level. A corymb has a flattish top with a superficial resemblance towards an umbel, and may have a branching structure similar to a panicle. Flowers in a ...
The inflorescence forms a panicle. Some may be reed-like. The plants may be rhizomatous (underground stems with shoots), stoloniferous (with runners), or caespitose (growing in tufts or clumps). The bisexual spikelets have a single floret and generally they are purple or purple-brown. The spikelets are clustered into inflorescences, which ...