Botanical Names: Blue Porterweed

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Kingdom: Plantae
Subkingdom: Tracheobionta – Vascular plants
Superdivision: Spermatophyta – Seed plants
Division: Magnoliophyta or Angiosperms – Flowering plants
Class: Magnoliopsida – Dicotyledons
Subclass: Asteridae
Order: Lamiales
Family: Verbenaceae (The Vervain family)
Botanical name: Stachytarpheta jamaicensis
Common Name: Blue Porterweed or Blue Snakeweed or Jamaica Vervain 
Habit: Perennial Shrub

Blue Porterweed's flowers are dark blue in color with white throat. It is not a weed, but a beautiful ornamental with crinkled and toothed leaves. The stem is woody towards the base. The plant can be reproduced from seeds as well as stem cuttings. The flowers are borne on long slender spikes at the ends of stems. 

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Location: My garden at Kottayam, Kerala


  1. Beautiful purple flowers :) :)
    Nice post Anjana.

  2. Can you suggest me some other plants we have commonly in kerala from vervain kind,

    1. Phyla nodiflora (Capeweed or Creeping Vervain)and Verbena bonariensis (Purpletop Vervain) are found in Kerala.