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We are warned that the following species are "difficult of extrication," either confluent or mixed by intercrossing. H. doronicoides. I place this the third in merit among perennial sunflowers, H. rigidus and H. multiflorus being first and second. It is 6 feet or 7 feet high, upright in growth, with many stalks.
Gray used to refer the origin of this species to H. doronicoides, but it is now believed by him to be a distinct species, though one of which it is difficult to identify with certainty the typical form. I omitted to say that the word Helianthus is Greek for sunflower. After several years' careful observation, I believe the notion that the flowers keep their face to the sun is quite a delusion.
A casual observer would hardly notice the difference between this species and the last, but when grown together the superiority of doronicoides as a garden plant is at once evident. H. strumosus.
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