They are very common, it's just a marking that looks pretty for certain people.
The common houseplant you are referring to is likely a Hoya plant, also known as the "Heart Leaf" plant. It is known for its thick, heart-shaped leaves that have a velvety texture.
I'm not sure, but never trust something you see on WikiAnswers to answer that question for you. Taking a pill that you're not sure of could be dangerous.
Heart-Shaped Scar was created in 2001.
The Heart Shaped Sea was created in 1992.
The philodendron family has heart shaped leaves.
Heart-Shaped Box was created in 1993-02.
the human heart is shaped like a upside down pear
Heart shaped, it shows you love them.
Heart shaped
Heart-Shaped Box - novel - was created on 2007-02-13.
Heart-Shaped Glasses - When the Heart Guides the Hand - was created on 2007-04-17.
A heart-shaped plant is any plant that has foliage that is shaped like a heart. This could be an actual plant species that is naturally shaped like a heart or it could be any plant that has been pruned and trained to grow in the shape of a heart. Some common examples of heart-shaped plants include: English ivy Hearts and stars (Hedera helix) Foxtail fern Heuchera Ligularia Hosta Climbing HydrangeaThese plants can be grown indoors or outdoors depending on the species. They can be trained to grow on archways walls and trellises or kept in a pot and moved around as desired. Heart-shaped plants are a great way to add a touch of whimsy to your home or garden.