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Project Name Data (Last Modified On 9/30/2013)
 

Flora Data (Last Modified On 9/30/2013)
Genus LUPINUS L.
Contributor David B. Dunn
PlaceOfPublication Sp. P1. 721. 1753
Note TYPE: L. albus L.
Description Mostly erect or ascending herbs, rarely shrubs; roots sometimes stout, some- times with large nodules; stems mostly pubescent. Leaves 5- or more digitate,
Habit herbs, rarely shrubs
Description the leaflets narrow, pubescent, sometimes sericeous, sometimes glaucous, with a single midnerve; petiolules inconspicuous; petioles elongate; stipules mostly narrow, adnate to the petiole. Inflorescences often showy, blue, purple, red or yellow, racemose, the rachis terminal, several-many flowered; pedicels slender. Flowers with the calyx 2-lipped nearly to the base, the upper lip about as long as the lower; corolla glabrous or sparingly pubescent, the standard broad, the wings apically connate, the keel often beaked; stamens monadelphous, the fila- ments unequal, glabrous, the anthers dimorphic; ovary sessile, the style curved upwards, the stigma capitate, often bearded. Legume oblong, somewhat com- pressed and obliquely constricted between the seeds, dehiscing explosively with a spiral tension, 2-12 seeded; seeds plump with a small, sunken hilum.
Distribution The genus includes about 200 species in western North America but with species throughout the western hemisphere and in the Mediterranean region.
Note Perhaps as many as 200 species occur in South America. Many species grow in full sun and sandy soil. Some species are used for fodder, while others are well known for poisoning cattle. The toxicity varies with species as to part of the plant implicated, type of toxic response, etc. Nothing is yet known about the toxicity of the Panamanian species. In some countries, the seeds have been used as a coffee substitute following leaching of alkaloids from the seeds.
Common Lupin Altramuz
Common Lupino
Key a. Plants erect, to 50-100 cm tall, branching above; leaflets 5-7, the largest 3-4 cm long, 8- 11 mm wide, complanate; standard 10-13 mm long, the keels glabrous or occasionally sparsely ciliate above distally; stipules to 5 mm long ...... 1. L. clarkei aa. Plants decumbent in age 15-30 cm long, branching at the base; leaflets 8-11, the largest 2- 3 cm long, 3-6 mm wide, conduplicate; standard 9-10 mm long, the keels densely ciliate above distally; stipules 12-15 mm long ...... 2. L. costaricensis
 
 
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