Any of several blue flowering plants, especially cornflower, Centaurea cyanus, and plants of the genus Scabiosa.
A blue Australian parrot, especially Northiella haematogaster.
A traditional flat Scottish hat made of blue wool; a blue tam-o'-shanter.
Someone who wears such a hat; a Scotsman, especially a Scottish soldier.
Any of several North American species of Lupinus common in the southwestern US, especially Lupinus texensis and Lupinus subcarnosus.
Erigeron canadensis (syn. Conyza canadensis), an annual weed
especially, common mare's tail (Hippuris vulgaris)
Equisetum, a fern ally
A long streaky cloud, spreading out like a horse's tail, and believed to indicate rain; a cirrus cloud.
Any aquatic plant of the genus Hippuris, having narrow leaves in whorls.