Ageratum conyzoides commonly known as Billygoat weed. It is a member of the Asteraceae family. In this article, we will learn about the position of leaves, flowers, and fruits of Billygoat weed.
Scientific Name: Ageratum conyzoides
Some Basic Information about Ageratum conyzoides
Habit– An annual herb.
Root– Tap root, branched.
Stem– Erect, branched, green, herbaceous, hairy, cylindrical, solid.
Leaf– Simple, petiolate, alternate, exstipulate, chordate, crenate, unicostate, reticulate venation.
Inflorescence– Head arranged in dense terminal corymb.
Flower– Homogamous, all flowers are tubular and hermaphrodite, actinomorphic, bracts of involucre linear, acute, ribbed, epigynous and light blue or violet.
Calyx– Pappus 5, scales free above but connate at the base, awned, valvate.
Corolla– Petals 5, gamopetalous, tubular, superior, valvate aestivation.
Androecium– Stamens 5, epipetalous, syngenesious, anthers dithecous, basifixed and introrse.
Gynoecium– Bicarpellary, syncarpous, ovary inferior, unilocular with one ovule, basal placentation, style long, stigma bifid.
Fruit– Cypsela.
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Floral formula-Br ⊕ ⚥ K5 Pappus C(5) A(5) G (2)
Systematic Position:
Division – Phanerogamia
Subdivision – Angiospermae
Class – Dicotyledonae
Subclass – Gamopetalae
Series – Inferae
Order – Asterales
Family – Asteraceae
Genus – Ageratum
Species – conyzoides
