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Aristolochias are also popularly known as Birthworts besides many other names given to them. The family is represented by about 500 species world over. Most birthworts are creepers and several species with very showy flowers are grown in gardens as ornamentals. In India, we have a few species belonging to this family of plants.

Aristolochia flower

These plants use a very interesting strategy to effect pollination of their flowers. The pollinators are perhaps attracted to the flowers owing to their colour and smell. The flowers have downward pointing hairs on the inside wall leading from the mouth to the bulb at the base. These hairs facilitate the downward movement of the pollinator. When the insect is in the bulb part of the flower, pollination is effected. Subsequently, the hairs wither allowing the pollinators to fly out.

Aristolochias also have interesting fruits. Several winged seeds are packed inside each fruit. When the fruit is mature, it breaks open and releases the flat winged seeds. At this stage the fruit looks like a little inverted parachute.

Recently, I saw an Aristolochia indica creeper entwined completely on a thorny shrub. When I saw the plant my eyes automatically started searching for the larvae of the Crimson Rose butterfly. At first, I saw a small caterpillar sitting on a flower.

Subsequently, I saw one that was feeding on the fruit of the plant.

There was also one large caterpillar resting on the main stem of the creeper. I quickly set about photographing various aspects of the flower and the larvae.

It is interesting to note that the Crimson Rose butterfly lays eggs selectively on the Aristolochia indica vines.

Crimson Rose

For that matter, all female butterflies are very particular about the plant on which they lay eggs. They will not lay eggs on every other plant they come across – they are host-specific. This is yet another example of how things in nature are inter-related.

These pictures (except that of the open seed case and the butterfly) were shot during a recent visit to the Blackbuck Resort near Bidar run by Jungle Lodges & Resorts Ltd.

  • Aishwarya

    Amazing Pictures and Facts… Good start to my day

  • http://www.flickr.com/photos/radha-clicks/ radha

    wow! this is a wonderful read Karthik and superb images as always..
    never seen a Aristolochias specimen, I hope I get to see one soon..

  • http://vignettesoftheworld.wordpress.com Kesava

    As always, I have seen “somewhere” that inverted parachute fruit.

    Great read and hope to see one soon..

  • http://www.natureclicks.in Saandip Nandagudi

    Nice info on both the plant & butterfly behaviour with awesome photographs..TFS

  • chandu

    Thanks karthik for more information on this species, I see in your pictures whatever I had read on wiki the other day after you id-ed the plant.

  • http://adventureanytime.blogspot.com Santosh

    very informative post… can recollect the same discussed during NTP, the macro shot of the caterpillar is awesome!

  • http://pakshi-loka.blogspot.com Sumana

    Interesting facts and nice pictures, Karthik…

  • http://deponti.livejournal.com Deepa Mohan

    Thank for the Aristolochia info. I’ve seen them as ornamentals in a few gardens but didn’t know they were such interesting plants!

  • http://birdsonthebrainetc.wordpress.com Uma K

    Wonderful info and photographs!! The macro of the caterpillar is superb!! Thanks for yet another nugget!!

  • http://backpakker.blogspot.com lakshmi

    I almost felt like I was walking along with you while reading the post..thanks so much for the info

  • Rohit

    The Macro shot of the caterpillar was incredible! Thanks for sharing this information.

  • parul

    Good information

  • Sagar Chandane

    great work u done. is it possible to plantation aristolochia species in my garden. you know about ceropegia species.

    • karthik

      Hello Sagar. Yes you should be able to grow Aristolochia species in your garden. I have seen them being grown in home gardens.

  • http://shivanidiwani64.blogspot.com/ shivani

    a-ris-toh-LOH-kee-uh…glad and thrilled to get acquainted to this new species and the host- specific butterfly.
    Completely new to me…this has left me hungry for more…more a-ris-toh-LOH-kee-uh and more butterflies…
    Thanks for making me wander the new garden paths and enabling me to know newer beauties. :)

  • Ranjini Kamath

    V. enjoyable read :)