Commelinoideae
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Through Monocotyledon, Morphology (biology) and Phylogenetic tree
The Commelinoideae is separated morphologically from the other subfamily, Cartonematoideae, in having glandular microhairs, arteries containing needle-like calcium oxalate crystals called raphide canals in between the veins of the leaves, and flowers that are virtually never both yellow and actinomorphic. Molecular phylogenetics also supports the separation of the two subfamilies.
Phylogeny
The following is a phylogeny, or evolutionary tree, of most of the genera in Commelinoideae based on DNA sequences from the plastid gene rbcL
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