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Marah horridus

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Title: Marah horridus  
Author: World Heritage Encyclopedia
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Subject: Marah macrocarpus, Cucurbitaceae
Publisher: World Heritage Encyclopedia

Marah horridus

Marah horridus
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Cucurbitales
Family: Cucurbitaceae
Genus: Marah
Species: M. horridus
Binomial name
Marah horridus
(Congd.) S.T.Dunn

Marah horridus, common name Sierra manroot,[1] is a species of flowering plant in the family Cucurbitaceae, endemic to the foothills of the Sierra Nevada and the Tehachapi Mountains in California. It grows in open and shrubby areas below 1,000 m (3,300 ft) elevation.[2]

Flowers and developing fruit


M. horridus is a perennial vine growing from a large, branched tuber. It produces a climbing stem with tendrils and many lobed, rounded leaves. The flowers are white. The fruit is an oblong, densely prickly capsule 9–20 cm (5–10 in) long, containing 6-24 seeds, each 26–32 mm (1.0–1.3 in) long.[2]


  1. ^ Marah horridusUSDA Plants Profile for
  2. ^ a b Marah horridusJepson Manual Treatment for
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