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Having a bilaterally symmetrical corolla somewhat resembling a butterfly, characteristic of certain plants of the pea family such as a sweet pea.

[Latin pāpiliō, pāpiliōn-, butterfly; see pavilion + -aceous.]


shaped or in the form of a butterfly


(pəˌpɪl i əˈneɪ ʃəs)

having an irregular corolla shaped like a butterfly, as the pea and other leguminous plants.
[1660–70; < Latin pāpiliōn- (s. of pāpiliō) butterfly + -aceous]
References in classic literature ?
Many flowers, on the other hand, have their organs of fructification closely enclosed, as in the great papilionaceous or pea-family; but in several, perhaps in all, such flowers, there is a very curious adaptation between the structure of the flower and the manner in which bees suck the nectar; for, in doing this, they either push the flower's own pollen on the stigma, or bring pollen from another flower.
The current research work is designed to find the taxonomic diversity and the use of palynological data for the characterization of the papilionaceous flora of Shishi Koh Valley Chitral.
In the third section, the KBNN is applied to tapered dual-plane EBG and papilionaceous dual-plane EBG which shows the feasibility of the method.
(Fabaceae) consist of a white or light pink papilionaceous corolla with 5 petals: a standard petal (vexillum), two wing petals (alae), and two keel petals (carina) (Figures 1(a) and 1(b)).
vogelii is typically papilionaceous, about 2.5 cm across and purple with white markings or white.
The vascular anatomy of the flower in the Papilionaceous Leguminosae, I.
On the agency of bees in the fertilization of papilionaceous flowers, and on the crossing of kidney beans.
When harvesting pollen from the papilionaceous flowers of the Leguminosae, T.
Tucker (1987) has found pseudoracemes that resemble the pim triads in 5 of about 32 papilionaceous tribes.