Papilionaceous is a 14 letter English word. It's valid Words with friends word worth 26 points.
You can make 1642 anagrams from letters in papilionaceous (aaceiilnooppsu).
1660-70; Latin pāpiliōn- (stem of pāpiliō) butterfly + -aceous
Astragalus, a genus of papilionaceous plants, herbaceous or shrubby, and often spiny.
Ala (plural, al), a wing; the side-petals of a papilionaceous corolla, 92.
I opened some, and found them of a papilionaceous structure.
Carina, a keel; the two anterior petals of a papilionaceous flower, 92.
The caterpillars live on the pea and other papilionaceous plants.
papilionaceous, butterfly-shaped; applied to such a corolla as that of the Pea, 91.
The names of the five petals of the papilionaceous corolla are curiously incongruous.
Trees or Shrubs with papilionaceous corolla; as the laburnum.
They have been called Mouches papilionaces, or papilionaceous Flies.
The flowers are papilionaceous, of a purple colour and arranged in panicles.
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