Stemmatella urticifolia(Kunth) O.Hoffm. ex Hieron.
Vargasia caracasanaDC.
Wiborgia brachystephanaHeynh.
Wilborgia urticifoliaKunth
Galinsoga quadriradiata is a species of flowering plant in the family Asteraceae which is known by several common names, including shaggy soldier,[2][3]Peruvian daisy, hairy galinsoga. Its native home is apparently central Mexico, although it has become naturalized in many other places (North and South America, Europe, Japan, Philippines, the northern India, Nepal, etc.).[4][5]
Shaggy soldier is an annual herb about 25 cm (10 in.) tall (exceptionally up to 80 cm) with a hairy stem that splits into three branches at every node. The leaves are arranged in opposite pairs, the lower ones being ovate and about 5 cm long, while the upper ones are smaller and more lanceolate. All the leaves are roughly hairy and toothed, with petioles about 1 cm long, and lack stipules.[6][7]
The leaves are ovate and toothed.
The small flower heads are up to a centimeter wide (0.4 inches) but typically 2-3mm in diameter and have rounded center filled with many disc florets usually in a shade of bright yellow. There are typically five white ray florets widely spaced around the center, each an oval shape typically with three crenate teeth at the tip. Both the disk and ray florets are fertile[8] producing an achene with a large pappus.[4][9][5]
Identification
Shaggy soldier is usually a hairy plant, whereas the otherwise similar gallant soldier tends to be more-or-less hairless, but these characters are insufficient for accurate identification. To be confident, it is important to check (with a hand lens) that shaggy soldier has simple (not forked) scales on the receptacle, and scales in the pappus with hairy margins and a long, thin point at the top.[6]
The pappus scales have fringed margins and an elongated, fine tip.
Uses
Macro photograph of a shaggy soldier flower showing ray and disk florets.
Galinsoga quadriradiata and its cousin Galinsoga parviflora are both edible and can be used as a pot herb or in salads, although outside of their native range they have not been widely adopted as a culinary item other than in China. G. parviflora is preferred as a salad green due to its non-hairy leaves. Care must be taken to not confuse them with the distantly related, and visually similar, Tridax procumbens.
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