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Genotoxic
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Mulching
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Cryovolcanism
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Spar
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Big Crunch
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Ordovician
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Cytotoxic
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Chyle
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POP3
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Dermis
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Polycyclic aromatic hydrocarbons
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Crystalline state
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Bubonic plague
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Blood cell
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Stop-start
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Neoadjuvant
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Cross site scripting
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Remission
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Blu-Ray
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Messier 82
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Diencephalon
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Focal epilepsy
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Emollient
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Titania
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Proof of Concept
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Achromatopsia
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Chemotaxis
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Curium
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Rootkit
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Polarised light microscope
Cladode
A cladode is a specialised branch that has the appearance of, and functions of, a leaf: wide, flat and photosynthetic.
The racquets of the prickly pear (Opuntia ficus-indica) or the leaves of the butcher's broom (Ruscus aculeatus) are in fact cladodes.
What seem to be the leaves of this Semele androgyna are actually branches. There is a clue to be certain: only branches produce flowers, never leaves! © Scott Zona, Wikimedia CC by 2.0
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