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| Orobanche uniflora L. | Species Image Gallery (opens in a new window) |
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| TAXONOMY | |||||||||||||||
| Family: | Orobanchaceae | ||||||||||||||
| Genus: | Orobanche | ||||||||||||||
| Species Synonyms: | Thalesia uniflora (L.) Britt. Orobanche uniflora var. terrae-novae (Fern.) Munz Orobanche uniflora var. typica Achey Orobanche uniflora ssp. occidentalis (Greene) Abrams ex Ferris Orobanche porphyrantha G. Beck Orobanche purpurea Jacq. Orobanche terrae-novae Fern. Orobanche uniflora var. minuta (Suksdorf) G. Beck Orobanche uniflora var. occidentalis (Greene) Taylor & MacBryde Orobanche uniflora var. purpurea (Heller) Achey Orobanche uniflora var. sedii (Suksdorf) Achey Orobanche sedii (Suksdorf) Fech. Aphyllon uniflorum (L.) Torr. & Gray |
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| Common Names: | naked broomrape oneflowered broomrape one-flowered cancer-root small broom-rape |
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| DISTRIBUTION | |||||||||||||||
| Canada: | British Columbia – southwestern Alberta, southwestern Saskatchewan, Ontario – Newfoundland – Nova Scotia | ||||||||||||||
| Saskatchewan: | southwestern Saskatchewan; Cypress Hills | ||||||||||||||
| Ecoregion: | Cypress Upland | ||||||||||||||
| HABITAT | |||||||||||||||
| Saskatchewan: | willow thickets and mudflats | ||||||||||||||
| RARITY STATUS | |||||||||||||||
| Provincial
Status According to Harms (2003): |
Endangered |
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| Nature Conservancy Status: | G5 S1 |
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| Saskatchewan
Species at Risk Status: |
None |
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| COSEWIC Status: | None |
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| Orobanche uniflora is endangered because it is extremely rare and very regionally limited in Saskatchewan. This species is almost always locally sparse. Possible threats have been identified. | |||||||||||||||
| SPECIES DESCRIPTION | |||||||||||||||
| Height: | 3 – 20 cm tall | ||||||||||||||
| Stems: | few to several, fasciculate, spreading to descending, slender to stout, fleshy, very short, grading into flower stalk | ||||||||||||||
| Leaves: | 1 – 5, scale-like, white or brownish | ||||||||||||||
| Inflorescence: | flowers solitary; pedicels 5 – 25 cm long, viscid or glandular pubescent, white to yellow | ||||||||||||||
| Flowers: | calyx 5-merous, 6 – 9 mm long, 3-nerved, glandular pubescent, lobes longer than the tube; corolla 2-lipped, white, purplish or yellowish, with two yellow bearded folds in throat; stamens 8 – 11 mm long, anthers white, glabrous to slightly hairy; ovary glabrous, tapering to style; stigma 2-lobed | ||||||||||||||
| Fruits: | capsule; seeds numerous | ||||||||||||||
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