Soliva sessilis Ruiz & Pav., Fl. peruv. prodr. 113, t. 24. 1794 “Sol. sessili” (syn: Gymnostyles alata Spreng.; Gymnostyles barcklayana (DC.) Steud.; Gymnostyles chilensis Spreng.; Gymnostyles pterosperma Juss.; Soliva alata (Spreng.) DC.; Soliva barclayana DC.; Soliva daucifolia Nutt.; Soliva microloma Phil.; Soliva neglecta Cabrera; Soliva pterosperma (Juss.) Less.; Soliva sessilis var. barclayana (DC.) Baker; Soliva sessilis var. sessilis );
Soliva sessilis, one of up to nine species of the genus Soliva, is a low-growing herbaceous annual plant. Its common names include field burrweed, Onehunga-weed, lawn burrweed, lawnweed, and common soliva. It is one of several plants known as bindi weed, bindii, or bindi-eye.
A weedy plant known for its tiny sharp-needled seeds. It appears with small feathery leaves reminiscent of parsley, with an exposed upward-pointing rosette of seeds in a pod nestled at the branch junctions. Eventually small bright flowers appear if the plant is allowed to develop. Those familiar with the plant may also know it as “bindi patches”, which can’t be walked on barefoot. Dogs and cats are no less affected and tend to avoid areas where they have encountered it.
Originally native to South America, the plant is now well established in many places around the world, including Australia, New Zealand, southwest France, Hawaii, California, and several other states in the United States. It is mainly found in parks and ovals, though it has also become an invasive species in lawns in the southeast USA, Australia and New Zealand.
Bindi weed can be manually removed by pulling it out at the root, usually when it’s grown big, and started to flower, and before seeding – especially after rain when the ground is softer. A hand tool that pinches the tap root,and enables some leverage, while getting in under the central core is the best method.
Bindi can be treated with herbicide. Late winter and early spring are the best times to destroy the weed before its seeds germinate. Effective herbicides are typically combinations of MCPA and Dicamba, which target broad-leaved plants but not grasses. These chemicals have similar effects as natural plant auxins, and their increased concentrations cause unnatural plant growth which kill the plant. Mowing grass to a higher level will allow more competitive plants to thrive in the area. Bindi weed also favours compacted ground, so aerating the soil should also reduce the presence of the plant.
(From Wikipedia on 22.6.16)
Photos of Soliva pterosperma : 5 posts by 1 author. Attachments (7)
These are photos of Soliva pterosperma.. common lawn weed in winter to spring season.. sharp achenes penetrate into skin if walk bare footed.. found commonly in most of the lawn and playing grounds of Lahore, Pakistan
Thanks alot Sir for inserting my images. Sir you named the Plant Soliva sessilis but it is actually Soliva pterosperma, not sessilis. I know these are listes as synonyms in many data bases but actually these two species are different. Difference of both species is that the achinal wings of Soliva pterosperma is bilobed but the achinal wings of Soliva sissilis are entire (unlobed). so the name should be Soliva pterosperma. I am attaching a photograph from an article. hope it will clarify you.
Thanks a lot, … Publications you have attached is of 1952.
These days all the following are accepting Soliva pterosperma (Juss.) Less as a syn. of Soliva sessilis Ruiz & Pav. as per the following links: