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What is 1 + 3?
smooth and hairless
The higher on the plant the smoother and more hairless it becomes
plant is simply rough
hairy, tipped with pin-head glands
hairs that are fairly straight and branched radiately from a center
hairs that are fairly straight and are unbranched, general, and short
hairs that are fairly straight, medium stiff, and moderately long
hairs that are fairly straight, stiff, medium-long, and harsh
very curly hairs on leaf surface, very dense and thick
fine and soft hairs on margins only
long hairs on restricted areas of floral organs