Orobanche pinorum is a species of broomrape known by the common name conifer broomrape. It is native to the forests of western North America,[1] where it is a parasite growing attached to the roots of other plants, usually Holodiscus species. This plant has an erect stem with a wide, thickened base and slender top growing 10–30 centimetres (3.9–11.8 in) tall. As a parasite taking its nutrients from a host plant, it lacks leaves and chlorophyll and is brownish or yellowish in color. The inflorescence is a dense, spreading array of purple-tinged yellowish flowers 1–2 centimetres (0.39–0.79 in) long.[2]

Orobanche pinorum

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Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Orobanchaceae
Genus: Orobanche
Species:
O. pinorum
Binomial name
Orobanche pinorum

Reproduction

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Orobanche pinorum is predominantly autogamous. It produces about 700 seeds per capsule and over 70,000 seeds per plant. There are some evidence of xenogamy, but potential pollinators were rarely observed.[3]

References

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  1. ^ "Orobanche pinorum Geyer ex Hook". USDA. Plants Profile. Retrieved December 5, 2009.
  2. ^ Lawrence R. Heckard. "Orobanche pinorum". Jepson Flora Project. Berkeley, California: University of California. Retrieved December 5, 2009.
  3. ^ Ellis W., Mark; Taylor J., Ronald; Harrod J., Richy (Jan 1999). "THE REPRODUCTIVE BIOLOGY AND HOST SPECIFICITY OF OROBANCHE PINORUM GEYER (OROBANCHACEAE)". Madroño. 46 (1): 7–12.

Further reading

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Ellis, Mark W.; Taylor, Ronald J.; Harrod, Richy J. (January 1999). "The reproductive biology and host specificity of Orobanche pinorum Geyer (Orobanchaceae)". Madroño. 46 (1): 7–12.

Heckard, L. R.; Chuang, T. I. (April 1975). "Chromosome Numbers and Polyploidy in Orobanche (Orobanchaceae)". Brittonia. 27 (2): 179–186. doi:10.2307/2805479. JSTOR 2805479. S2CID 8311723.

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