Question: What is the name of the plant that Hina dye is prepared from?  
Context: Tyrian purple (Greek, πορφύρα , "porphyra", Latin: "purpura" ), also known as Phoenician purple, Tyrian red, royal purple, imperial purple or imperial dye, is a bromine-containing reddish-purple natural dye.  It is a secretion produced by several species of predatory sea snails in the family Muricidae, rock snails originally known by the name "Murex".  In ancient times, extracting this dye involved tens of thousands of snails and substantial labor, and as a result, the dye was highly valued. Hina (Urdu: حنا‎ ) is a female name.  In South Asia and the Middle East, derived from Henna.  In Japan derived from light or sun.  In the Pacific Islands, derived from A goddess of various Polynesian cultures. A dye-sublimation printer is a computer printer which uses heat to transfer dye onto materials such as a plastic, card, paper, or fabric.  The sublimation name was first applied because the dye was considered to make the transition between the solid and gas states without going through a liquid stage.  This understanding of the process was later shown to be incorrect.  There is some liquifying of the dye.  Since then, the process is sometimes known as dye-diffusion, though this has not eliminated the original name. <ref name="Drake/ Hann"> Chemical technology in Printing and Imaging Systems, ed.  J A G Drake, 1993, pp 73-85</ref> Many consumer and professional dye-sublimation printers are designed and used for producing photographic prints, ID cards, clothing, and more. Orange B is a food dye from the azo dye group.  It is approved by the United States Food and Drug Administration (FDA) for use only in hot dog and sausage casings or surfaces, only up to 150 parts per million of the finished food weight.  It is typically prepared as a disodium salt. Oldenlandia umbellata (called chay root or choy root, from its Tamil name, "chaaya ver") is a low-growing plant native to India.  A colour-fast red dye can be extracted from the root bark of (preferably) a two-year-old plant.  Chay root dye was once used with a mordant to impart a red colour to fabrics such as calico, wool, and silk. Lawsonia inermis, also known as hina, the henna tree, the mignonette tree, and the Egyptian privet, is a flowering plant and the sole species of the Lawsonia genus.  It is the source of the dye henna used to dye skin, hair and fingernails, as well as fabrics including silk, wool and leather. Indigofera tinctoria, also called true indigo, is a species of plant from the bean family that was one of the original sources of indigo dye.  It has been naturalized to tropical and temperate Asia, as well as parts of Africa, but its native habitat is unknown since it has been in cultivation worldwide for many centuries.  Today most dye is synthetic, but natural dye from "I. tinctoria" is still available, marketed as natural coloring where it is known as tarum in Indonesia and nila in Malaysia.  In Iran and areas of the former Soviet Union it is known as basma.  The plant is also widely grown as a soil-improving groundcover. Hina is the Eastern Polynesian variant for the given name Sina.  Hina/Sina is the name assigned to a number of Polynesian goddesses and queens. Henna (Arabic: حِنَّاء‎ ‎ ) is a dye prepared from the plant "Lawsonia inermis", also known as hina, the henna tree, the mignonette tree, and the Egyptian privet, the sole species of the "Lawsonia" genus. Malachite green is an organic compound that is used as a dyestuff and controversially as an antimicrobial in aquaculture.  Malachite green is traditionally used as a dye for materials such as silk, leather, and paper.  Although called malachite green, this dye is not prepared from the mineral malachite—the name just comes from the similarity of color.
Answer: Lawsonia inermis