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Lupinus – Wikipedia

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**1. Lupinus Characteristics:**
– Lupins are herbaceous perennial plants, sometimes annual or shrubs.
– They have green to grey-green leaves with palmately divided leaflets.
– Flowers are pea-like with an upper standard, two lateral wings, and a keel.
– The fruit is a pod containing several seeds with alkaloids.
– Estimates suggest there are between 200 to 500 lupine species worldwide.

**2. Lupinus Taxonomy:**
– Lupinus taxonomy has been historically confusing.
– Estimates place the number of species at around 267 globally.
– Two subgenera are currently recognized: Platycarpos and Lupinus.
– The taxonomy is based on the number of ovules in the ovary.
– Subgenus Platycarpos contains species from the Western Hemisphere.

**3. Lupinus Subgenus Platycarpos:**
– Ovary contains two or more ovules with small-sized seeds.
– Stem is predominantly naked with waxen coating.
– Leaflets are smooth with waxen coating or slight pubescence.
– Pods are flat or orbicular with two or more seeds.
– Distributed throughout North, Central, and South America, especially in the Andes.
– Chromosome number in subgenus Platycarpos is either 36, 48, or 96.

**4. Lupinus Species and Classification:**
– Lupinus belongs to the Fabaceae family.
– It is a genus of flowering plants.
– Lupinus is commonly known as lupine or lupin.
– The genus includes over 200 species.
– Lupinus species are found in North and South America.

**5. Uses and Importance of Lupinus:**
– Some Lupinus species are cultivated as ornamental plants.
– Lupinus seeds are used as food and feed.
– Lupinus plants improve soil fertility through nitrogen fixation.
– Lupinus extracts have medicinal properties.
– Lupinus is important for biodiversity conservation.
– Lupinus species play a role in ecosystem services.
– Some species of Lupinus are indicators of environmental health.
– Lupinus contributes to pollinator diversity.
– Lupinus plants help in erosion control.
– Lupinus has economic significance in agriculture and horticulture.

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