| Family: | Orobanchaceae |
|---|---|
| Common name: | broomrape family [Zomlefer - as Scrophulariaceae, pp. 250-254] |
| Diversity: | Worldwide: 220 genera; 3,000 species U.S.: genera PNW (Oregon Flora Project): 11 genera |
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| Flower | |
|---|---|
| K(5) Co(5) S2+2 P(2) | |
| Sexuality: | bisexual |
| Symmetry: | zygomorphic |
| Inflorescence: | raceme or cyme |
| Calyx (sepals): | 5, united |
| Corolla (petals): | 5, fused into a tube, sometimes two-lipped (=bilabiate) |
| Androecium: | 4, didynamous (=in two, paired lengths) |
| Gynoecium: | 2 united carpels, superior ovary (=hypogynous), single style, axile placentation, numerous ovules |
| Fruit: | capsule |
| Other features: | |
| Vegetative Features | |
|---|---|
| round stems, some achlorophyllous | |
| Leaves: | opposite, alternate, or spirald simple, entire to dissected, exstipulate |
| Life-history: | annual to perennial |
| Habit: | herbs, some shrubs, rarely trees |
| Distribution & Ecology: | cosmopolitan, range of parasitic lifestyles (hemiparasites to holoparasites) |
| Some Northwest Genera: | Castilleja, paintbrush Orobanche, broomrape Orthocarpus, owl-clover Pedicularis, lousewort Triphysaria, owl-clover |
| Economic Importance | |
|---|---|
| Crops: | |
| Ornamentals: | |
| Weedy and pest species: | Striga, witchweed (crop parasite) |
| Examples | Orobanchaceae Castilleja |
|---|---|
| Orobanchaceae Orobanche |
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| Orobanchaceae Orthocarpus |
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| click on the genus name for a flower image | |
Links to Other Web Sites
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