Lapsana olympicaP.Candargy [family COMPOSITAE ] Verified by Not on sheet., Lapsana communis [family COMPOSITAE ] (stored under name); Verified by Not on sheet.,
Related name
Lapsana olympica
Lapsana grandiflora
Lapsana adenophora
Lapsana intermedia
Lapsana pisidica
Lapsana peduncularis
Lapsana macrocarpa
Lapsana communis
Lapsana pubescens
Flora
Entry for Lapsana communis Linnaeus [family COMPOSITAE]
Leaves: blades 1–15(–30) × 1–7(–10) cm. Heads 5–25(–100+). Calyculi: bractlets keeled in fruit, 0.5–1 mm. Involucres 5–10 × 3–4 mm. Phyllaries 3–9 mm. Corollas 7–10 mm. Cypselae 3–5 mm. 2n = 12, 14, 16.
Lapsana communis is widely distributed in North America. It is easily recognized by the abruptly constricted lyrate leaves with relatively large terminal lobes, heads of relatively small flowers with yellow corollas, keeled phyllaries, and epappose cypselae. It is aggressively weedy and often found in shady disturbed sites. The milky juice of L. communis is said to be soothing to sensitive skin, particularly on the nipples of nursing mothers.