Dichasium

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Related to dichasia: dichasium, Racemes

dichasium

[dī′kā·zhē·əm]
(botany)
A cyme producing two main axes from the primary axis or shoot.

Dichasium

 

the inflorescence in plants of the cymose type. The primary axis in dichasium ends in a single apical flower. From the two opposite axils under that flower two lateral branches develop that exceed the primary axis in height and also end in flowers, which blossom later. On each of them in turn, two more lateral branches develop that overtake them in height and end in apical flowers, which blossom still later, and the process continues. Dichasium is typical for many plants of the family Caryophyllaceae and others. Sometimes branching and growth in dichasium is disturbed somewhat and inflorescences form that outwardly do not resemble dichasium (as in so-called false whorls in plants of the family Labiatae).

References in periodicals archive ?
It should be noted that, in some genera, the flowery shoots have an inflorescence that has been described (Townsend, 1993) as solitary or clustered axillary spikes (Nothosaerva Wight); solitary or fasciculate (Alternanthera); with very small hermaphrodite flowers, in few axillary flowered sessile clusters or in dichasia (Tidestromia Standley, Sanchez-del Pino & Flores Olivera, 2006); with hermaphrodite flowers, either solitary or paired in the axils of upper leaves (Polyrhabda).
This pattern is typical of cymes, dichasia, monochasia, and related forms.