Dalmatian Toadflax

Dalmatian toadflax Linaria dalmatica Figwort family
Key identifying traits Waxy, blue green heart shaped leaves Dense alternate lower leaves clasp stem Bright yellow snapdragon type flowers have long spurs and an orange bearded throat Long slender flower/seed stalks develop throughout season with pea size 2-celled seed capsules Several stems from mature root crown Biology and ecology Perennial with extensive root system Spreads by both roots and seeds Grows to 3’ tall, often in dense patches Flowers mid-summer until early fall Prefers dry sandy or gravely sites Aggressively invades roadsides and range Control Prevention – Learn to identify plants; know your property; beware of fill dirt, hay and seed from outside your area Biological – A promising agent (Mecinus janthinus) has been released county wide since 2001 and is now well established and showing considerable damage to toadflax populations Cultural – Good ground cover helps avoid initial infestation; can invade healthy dry sites Mechanical – Will not stand regular cultivation but occasional tillage or cutting and pulling are not sufficient due to extensive root system Chemical – A few herbicides are effective if proper timing to promote translocation to the roots is combined with a good surfactant to penetrate the waxy leaf surface; refer to the PNW Weed Management Handbook for specific chemical recommendations	Snapdragon-like flowers
	clasping, waxy leaves

*Where found –* Widely distributed in Stevens County on well drained sites, particularly near some old cemeteries where it was introduced as an ornamental. MSdoc pdf