Hypecoum erectum Linnaeus, It is Herbs, winter annual, very glaucous. Cotyledons linear. Leaves very numerous; petiole 1-3 cm, vaginate at base; blade oblanceolate, 4-11 × 0.8-2.5 cm, 2 or 3 × pinnate with deeply divided segments; ultimate lobes linear to setaceous, 1-3 mm. Flowering stalks usually several (up to 20) from rosette, usually regular dichasia, but sometimes branched below terminal dichasium, eventually with numerous flowers; first flower produced 5-15 cm from base; whole dichasium (from base to ultimate flower) with widely divergent branches, reaching 10-40 cm when fruiting; bracts/bracteoles paired, lower ones leaflike, ca. 3 × ternately divided into setaceous lobes, progressively smaller and less divided upward on dichasium. Sepals rather long persistent, ovate, ca. 2 mm, margin entire, apex acuminate. Petals yellow, sometimes with darker spots or streaks; outer petals 10-12 × 10-19 mm, 3-lobed with broad rounded lateral lobes and smaller triangular mid-lobe; inner petals 3-parted to ca. 1/2.