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Biological controls for DALMATIAN TOADFLAX coming soon

 

 

 

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DALMATIAN TOADFLAX — Linaria genistifolia ssp. dalmatica (L.) Marie and Petitmengin

Scrophulariaceae — (Figwort family)

Dalmatian Toadflax is a perennial, up to three feet tall, reproducing by seed and underground root stalks. The plant has broad, waxy, heart-shaped leaves that are dense and alternate. Flowers are borne in the axils of upper leaves. They are two-lipped, ¾ to 1½ inches long with a long spur, bright yellow with an orange, bearded throat. The fruit consists of a two-celled capsule containing many irregularly angled seeds. Early spring growth of this prolific perennial has waxy leaves with a blue-green color. Leaves individually clasp the stem.

Yellow flowers with long spurs appear at midsummer with plants continuing to flower until early fall. Dalmatian toadflax was introduced from Southeastern Europe, probably as an ornamental. It is aggressive and may be found along roadsides and on rangeland where it becomes a serious problem by crowding out desirable forage.

Growth Habit: Perennial, often over 3` tall, erect.

Leaves: Light green, alternate, broad, heart-shaped, clasping the stem.

Stem: Branching, light green, smooth and leafy.

Flowers: Snapdragon type, bright yellow, tinged with orange, to 1½" long spur, born in upper leaf axils.

Roots: Vigorous, deep and extensive, creeping roots.

Seeds: Numerous, irregularly angled.

Other: Spread by seed and creeping roots.

(Courtesy of Weeds of the West)

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