The larvae feed on various grasses, as well as " Rumex acetosella ".
2.
A : Red, or sheep, sorrel, Rumex acetosella, is a seriously stubborn weed, even if you do use herbicide.
3.
"Rumex acetosella " is widely considered to be a hard-to-control noxious weed due to its spreading rhizome.
4.
The flowers and seeds grow on long clusters at the top of a stalk emerging from the basal rosette; in many species, the flowers are green, but in some ( such as sheep's sorrel, " Rumex acetosella " ) the flowers and their stems may be brick-red.
5.
Adults emerge on humid nights on spring and summer for a few hours to feed on lichens and plants mostly speedwell ( " Veronica arvensis " ), sheep's sorrel ( " Rumex acetosella " ), and cushion plant ( " Raoulia australis " ) and to mate.
6.
Some species with particularly high levels of oxalic acid are called sorrels ( including sheep's sorrel, " Rumex acetosella ", common sorrel, " Rumex acetosa ", and French sorrel, " Rumex scutatus " ), and some of these are grown as leaf vegetables or garden herbs for their acidic taste.
7.
In east-central New York, Karner blue butterflies occurred in 3 rights-of-way habitat types : wild lily-of-the-valley-starflower ( Maianthemum canadensis-Trientalis borealis ), sweetfern-whorled yellow loosestrife ( " Comptonia peregrina-Lysimachia quadrifolia " ), and blackberry-sheep sorrel ( " Rubus " spp . " Rumex acetosella " ).
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