Flowering tree for id--150408VKG1

11 views
Skip to first unread message

vinod kumar gupta

unread,
May 14, 2008, 2:48:43 PM5/14/08
to indian...@googlegroups.com, pradeep krishen
This tree was flowering profusely nearly 20 days back(Taken from 200408 to 240408 in delhi)
 
Description of leaves--simple,aprox 4 cm long,smooth above and below,pointy tip,gradually tapering towards base(almost webbed stalk)
 
Comparing with Pradeep Krishens book,The closest I got was coca tree(Erythroxylum coca)
 
Would appreciate id help
 
Vinod

tree_id_delhi_539_240408.jpg
tree_id_delhi_382_200408.jpg
tree_id_delhi_399_200408.jpg

Chitra Shanker

unread,
May 14, 2008, 11:04:04 PM5/14/08
to indian...@googlegroups.com
The mehendi plant Lawsonia alba
Chitra

J.M. Garg

unread,
May 15, 2008, 1:37:36 AM5/15/08
to Chitra Shanker, indian...@googlegroups.com
Thanks, Chitra ji for Id. Here are some extracts from Wikipedia link:http://en.wikipedia.org/wiki/Henna

Henna or Hina (Lawsonia inermis, syn. L. alba) is a flowering plant, the sole species in the genus Lawsonia in the family Lythraceae. It is native to tropical and subtropical regions of Africa, southern Asia, and northern Australasia in semi-arid zones. Henna is a tall shrub or small tree, 2–6 m high. It is glabrous, multibranched with spine tipped branchlets. Leaves are opposite, entire, glabrous, sub-sessile, elliptical, and broadly lanceolate (1.5–5.0 cm x 0.5–2 cm), acuminate, having depressed veins on the dorsal surface. During the onset of precipitation intervals, the plant grows rapidly; putting out new shoots, then growth slows. The leaves gradually yellow and fall during prolonged dry or cool intervals. Henna flowers have four sepals and a 2 mm calyx tube with 3 mm spread lobes. Petals are obvate, white or red stamens inserted in pairs on the rim of the calyx tube. Ovary is four celled, style up to 5 mm long and erect. Fruits are small, brownish capsules, 4–8 mm in diameter, with 32–49 seeds per fruit, and open irregularly into four splits.[1] Lawsone content in leaves is negatively associated with the number of seeds in the fruits.[2]

Henna, Lawsonia inermis, produces a red-orange dye molecule, lawsone. This molecule has an affinity for bonding with protein, and thus has been used to dye skin, hair, fingernails, leather, silk and wool. Henna's indigenous zone is the tropical savannah and tropical arid zone, in latitudes between 15° and 25° N and S from Africa to the western Pacific rim, and produces highest dye content in temperatures between 35°C and 45°C. It does not thrive where minimum temperatures are below 11°C. Temperatures below 5°C will kill the henna plant. The dye molecule, lawsone, is primarily concentrated in the leaves, and is in the highest levels in the petioles of the leaf. Products sold as "black henna" or "neutral henna" are not made from henna, but may be derived from indigo (in the plant Indigofera tinctoria) or Cassia obovata, and may contain unlisted dyes and chemicals.[3]

Henna is commercially cultivated in western India, Pakistan, Morocco, Yemen, Iran, Afghanistan, Somalia, Sudan and Libya. Presently the Pali district of Rajasthan is the most heavily cultivated henna production area in India, with over 100 henna processors operating in Sojat City.

Though henna has been used for body art and hair dye since the Bronze Age, henna has had a recent renaissance in body art due to improvements in cultivation, processing, and the diasporas of people from traditional henna using regions. [4]


For my Birds, Butterflies, Trees, Landscape pictures etc., visit  http://commons.wikimedia.org/wiki/Special:Contributions/J.M.Garg
Reply all
Reply to author
Forward
0 new messages