I dont think so. Theyll make calyxes and stuff as they grow through veg too, they just dont stack them or stretch out yet. The new fan leaf growths will also lengthen and get quite spindly looking before they fully devlop as a plant matures too, even in veg indoors. Even on indicas, new veg growth outdoors on a fully mature plant can look quite stringy/spindly, and there will be full developed calyxed intermingled. These calyxes can even produce seed already if you have stored pollen. (you can even do a little breeding being sure the pollen wont be viable come full flowering time too, have done it several times lol, and pollen can keep for years in a freezer if totally dry and air tight)
If the plant is old enough the new growth looks like a plant ready to flower because it's now a fully sexually mature plant. Right now days are getting longer faster then just about any other time before the solstice and your girlies know it :) They're just ancy and eagerly awaiting late july into august, when it becomes obvious to them it's time to flower.
Some of your little internode calyxes may even frost over and swell up before full flowering really begins.
Wait, lol, sorry for double post forgot i was still in the same thread

This was a clone of the colubian landrace sativa. A pure sativa plant. This one in fully mature growth almost looked like a stretched branch a week into 12/12... Still took 13+ weeks to flower. Would rarely even grow anything beyond 3-5 finger fan leaves, like a flowering cola. Covered in little calyxes and pistils at every node, they just didnt stack.
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Pure sativa along side pure indica in the same tent. Not something seen often lol. One not familiar could be forgiven for thinking these were a different species. Not sure why i never made a fem cross with them. Should have. But on both clones, if you looked at the internodes, they would look like they were about to flower. would be fully formed pistils and calyxes both. down lower, older ones would be a little fat, with a little frost on them.
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