Matthiola

Meikle, R.D. 1977: Flora of Cyprus 1
but supplemented (M. longipetala subspecies following Fl. Europaea 1, ed. 2)
1Flowers distinctly pedicellate; siliques strongly compressed
1'Flowers sessile or very shortly pedicellate; siliques terete or subterete
2Leaves entire or almost entire; siliques eglandular
2'Leaves sinuate or pinnatifid; siliques glandular
3Perennial herb, suffruticose at base; leaves narrow, linear, entire or sparsely lobed; stigma-lobes with small, inconspicuous dorsal appendages
3'Annual herbs with lanceolate, oblanceolate or oblong, sinuate, pinnatifid or irregularly lobed leaves; dorsal appendages of stigma conspicuous, forming long horns
4Stigma as long or longer than its dorsal appendages; siliques apparently 3-horned at apex; indumentum rather loose and woolly
4'Stigma much shorter than its dorsal appendages; siliques apparently 2-horned at apex; indumentum rather short and close
5Petals yellowish; petal-limb 2-4 mm wide; horns of siliques patent or recurved
5'Petals pink or purple; petal-limb 3-7 mm wide; horns of siliques curved upwards