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Scrophulariaceae The Snapdragon Family

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Presentation on theme: "Scrophulariaceae The Snapdragon Family"— Presentation transcript:

1 Scrophulariaceae The Snapdragon Family

2 Vegetative Features - Herbs with round stems; leaves alternate or opposite - Many species are hemi-parasites (they photosynthesize, but are also root parasites)

3 Reproductive Features - Flowers 5-partate, usually zygomorphic, frequently bilabiate (two-lipped)

4 didynamous stamens fused to the corolla
- Androecium commonly of 4 didynamous stamens fused to the corolla

5 In many genera and species, a fifth stamen is present, modified as a staminode.

6 Ovary superior, of two fused carpels
Style terminal Fruit a many-seeded capsule

7 Scrophulariaceae Ca5 CoZ5 A2+2 G2

8 Economic Importance: Digitalis (foxglove) is the source of digitalin, a cardiac glycoside used in the treatment of heart disease. Also numerous ornamentals, e.g., foxglove, snapdragon

9 Digitalis purpurea Foxglove

10 Pedicularis canadensis
Local Flora Linaria canadensis Canada toadflax Melampyrum lineare Cow-wheat Pedicularis canadensis Lousewort Mimulus ringens Monkey flower

11 Chelone glabra Turtlehead Great turtlehead news story:

12 Verbascum thapsus Mullein


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