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- Dioscorea_mexicana abstract "Dioscorea mexicana, Mexican yam or cabeza de negro is a species of yam in the genus Dioscorea. Dioscorea mexicana is a caudiciform dioscorea having either a partly to completely above-ground dome-shaped caudex with a thick, woody outer layer up to 3 feet(90 cm) in diameter and 8-10 inches(20 to 25 cm) in height. The caudex of D. mexicana is divided into regular polygonal plates that become protuberant with age, and separated by deep fissures. The shockingly vigorous annual vines which may reach 30 feet (9 m) long before dying back in winter, that grow up from the caudex, bear heart-shaped leaves.It ranges from the state of Veracruz in Mexico south to Panama. It is notable for its production of diosgenin, which is a precursor for the synthesis of hormones such as progesterone. Russell Marker developed the extraction and manufacture of hormones from D. mexicana at Syntex. Later the Mexican barbasco trade focused instead on Dioscorea composita instead, as this variety has a higher diosgenin content.".
- Dioscorea_mexicana class Monocotyledon.
- Dioscorea_mexicana division Flowering_plant.
- Dioscorea_mexicana family Dioscoreaceae.
- Dioscorea_mexicana genus Dioscorea.
- Dioscorea_mexicana kingdom Plant.
- Dioscorea_mexicana order Dioscoreales.
- Dioscorea_mexicana thumbnail Dioscorea_mexicana.jpg?width=300.
- Dioscorea_mexicana wikiPageID "9478061".
- Dioscorea_mexicana wikiPageRevisionID "559178873".
- Dioscorea_mexicana binomial "Dioscorea mexicana".
- Dioscorea_mexicana familia Dioscoreaceae.
- Dioscorea_mexicana genus "Dioscorea".
- Dioscorea_mexicana hasPhotoCollection Dioscorea_mexicana.
- Dioscorea_mexicana name "Mexican yam".
- Dioscorea_mexicana ordo Dioscoreales.
- Dioscorea_mexicana regnum Plant.
- Dioscorea_mexicana species "D. mexicana".
- Dioscorea_mexicana unrankedClassis Monocotyledon.
- Dioscorea_mexicana unrankedDivisio Flowering_plant.
- Dioscorea_mexicana subject Category:Dioscorea.
- Dioscorea_mexicana subject Category:Flora_of_Central_America.
- Dioscorea_mexicana subject Category:Flora_of_Mexico.
- Dioscorea_mexicana type Eukaryote.
- Dioscorea_mexicana type Plant.
- Dioscorea_mexicana type Species.
- Dioscorea_mexicana type Plant.
- Dioscorea_mexicana type Organism.
- Dioscorea_mexicana comment "Dioscorea mexicana, Mexican yam or cabeza de negro is a species of yam in the genus Dioscorea. Dioscorea mexicana is a caudiciform dioscorea having either a partly to completely above-ground dome-shaped caudex with a thick, woody outer layer up to 3 feet(90 cm) in diameter and 8-10 inches(20 to 25 cm) in height. The caudex of D. mexicana is divided into regular polygonal plates that become protuberant with age, and separated by deep fissures.".
- Dioscorea_mexicana label "Dioscorea mexicana".
- Dioscorea_mexicana label "Dioscorea mexicana".
- Dioscorea_mexicana sameAs Dioscorea_mexicana.
- Dioscorea_mexicana sameAs m.028bg4z.
- Dioscorea_mexicana sameAs Q5279587.
- Dioscorea_mexicana sameAs Q5279587.
- Dioscorea_mexicana wasDerivedFrom Dioscorea_mexicana?oldid=559178873.
- Dioscorea_mexicana depiction Dioscorea_mexicana.jpg.
- Dioscorea_mexicana isPrimaryTopicOf Dioscorea_mexicana.
- Dioscorea_mexicana name "Mexican yam".