Photo by L. M. Sosnoskie. Like other members of the Asteraceae, prickly lettuce seeds possess pappuses (0.16 to 0.2 (4 to 5 mm) in length) that facilitate wind dispersal. (Kasviatlas, University of Helsinki), Alpine Sow­thistle, Alpine Sweetgrasses, Autumn Hawkbit, Blue Sowthistle, Chicory, Common Hawkweeds, Field Milk-thistle, Goat's-beard, Hawkweed Oxtongue, Leafy Hawkweeds, Mouse-ear Hawkweeds, Narrowleaf Hawksbeard, Nipplewort, Pilosella Cauligera, Prickly Lettuce, Rough Hawkbit, Rough Hawksbeard, Smooth Sow-thistle, Spiny Milk-thistle, Spotted Cat's­ Ear, Viper's Grass, Wall Hawkweeds, Wall Lettuce. Species differ with respect to their emergence timing, life history traits, competitive interactions with the crop, potential to harm livestock, and sensitivity to available herbicides, among other characteristics. This is basically summer in a salad. The species is, predominantly, a winter annual and sometimes a summer annual. Dandelion leaves and flowers, both dried and fresh, act as an appetite stimulant and may also help to improve an upset stomach. Annual sowthistle: http://ipm.ucanr.edu/PMG/WEEDS/annual_sowthistle.html. Individual seeds each possess a pappus, a tuft of hair that aids with wind dispersal, which gives the seedheads their fuzzy appearance. An Arabian doctor first recorded dandelion’s curative properties in the 10th century. Those who like to keep their gardens and lawns in good shape wouldn’t shed any tears for a few less dandelions. Consequently, the type and timing of weed control events need to be designed to target problematic species so that control is maximized, weed seed return to the soil seedbank is minimized, and crop yields are protected. Identifying dandelion is difficult and demands expertise. Common groundsel plants produce small taproots with fibrous lateral roots. Some early studies using dandelions and animals have found that eating the plant can help to normalize levels of blood sugar. It was known as lion's tooth in other Latin based languages in Europe, too, so the English corruption may have evolved separately numerous times.It's scientific name is Taraxacum officinale. It is classified as a winter annual since the seeds germinate in late fall through early spring. Even hay with a small amount of contamination can be problematic as pyrrolizidine alkaloid poisoning can accumulate in the livestock over months of feeding. Do not exceed 3 applications or 12 fluid ounces per acre per year. While similar in general appearance (i.e. Individual flowers are surrounded by green bracts with black tips. Flowers (0.5 to 1 inch [1.2 to 2.5 cm] in diameter) resemble those of dandelions except they are a light yellow in color. Horseweed populations with resistance to glyphosate and with resistance to both glyphosate and paraquat have been confirmed in California. Dandelion only has one flower per stalk. And this is where we can finally see some distinguishing characteristics between dandelion and cat’s ear. The roots and leaves of the dandelion contain similar qualities, but at different levels. Identifying the presence of poisonous plant species is also critical for some producers. By: Joe DiTomaso and Evelyn Healy, https://anrcatalog.ucanr.edu/Details.aspx?itemNo=3488 (For purchase, link to online UC ANR store), Notes in the Margins: Agronomy and Weed Science Musings. Flowering time: (April–)May–July. Old aliens have disappeared, but new ones are found every year. Dandelion leaves are only at the base. Photo by L. M. Sosnoskie. Photo by L. M. Sosnoskie. Common groundsel is in the Asteraceae family, which also includes sunflower, dandelion, and thistles. Photo by L. M. Sosnoskie. Purslane. This vast range of diversity is due to apomixis: the majority of plants multiply asexually, without pollination to help the seeds develop. Dandelion has many medicinal uses. Not unlike hairy fleabane, horseweed leaves are alternate and are arranged in a rosette; however, horseweed leaves are typically a darker shade of green, as compared to fleabane. Dandelions, also known as Taraxacum officinale, are a type of flowering plant native to Europe, Asia and North America. Identify species based on their characteristics! According to the USDA's PLANTS database (https://plants.usda.gov), the species can be found in California, Arizona, Nevada, Oregon, and Washington, and across the southern US to as far north as Virginia. The leaves can be boiled or used raw in a salad. Sow thistle leaves grow all the way up the stalk, as well as at the base of the plant. The dichotomous nature of Butterweed may test the tolerance of lovers of native wildflowers. Blood sugar. 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