Botanical name: Ammi majus Family: Apiaceae (Carrot family)
Synonyms: Apium ammi
Bishop's Weed is an annual herb with finely divided, lacy leaves. Leaf stalk is 1-5 cm. Leaves are 6-20 cm, oblong, segments 1-1.5 cm, lanceolate to round. Stem leaves are 2-pinnately dissected. Flowers are borne in typically carrot-like inflorescence. Stalk carrying the clusters is 8-14 cm. Rays are 20-60, 2-7 cm, very slender, rough. Flower stalks are many, 1-10 mm, spreading-ascending to incurved in fruit. Flowers are white, with minute sepals. Petals are 5, wide, white, tips 2-lobed, ovate or spoon- shaped. Stamens are 5; pistil 1, ovary inferior, 2-chambered, generally with aconic, persistent projection or platform on top subtending 2 free styles. Fruit consists of 2 dry, 1-seeded halves that separate from each other but generally remain attached for some time to a central axis, 1.5-2 mm, oblong, subcylindric, compressed side-to-side. Ribs are equal, thread-like.
Identification credit: Amit Kumar
The flower labeled Bishop's Weed is ...