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Treees

Tree identification basics

QuestionAnswer
Catkin hanging clusters of flowers found on birches, poplars, etc.
Compound leaf consisting of more than one leaflet.
Drupes seeds enclosed in large, fleshy fruit, i.e. apples and pears
Furrowed deeply grooved, rough bark.
Leaflet the individual leaves that comprise a compound leaf.
Midleaf the midsection of the leaf. Used to describe shape
Palmate lobes or leaflets originate from one point.
Petiole the stem connecting the leaf to the branch
Petiolule the stem connecting each leaflet to the main rachis
Pinnate lobes or leaflets do not originate from one point.
Rachis the main ridge or vein along the leaf surface.
Stalk same as petiole, connects needle to hemlock to the twig.
Samara winged keys found on maples and ashes
Stomata two white lines on the underside of the hemlock needles
Sinus the area where two leaf lobes meet; the intersection of leaf lobes.
Vein strands of tubes on leaves; used for transporting nutrients
Whorled refers to bud arrangement, arranged in vertical whorls.
Created by: cplester
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