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Decumbent or loosely erect, to 1 m; fls blue-violet; pods coiled into 1.5–4 complete turns. Native of the Caspian area, widely cult. and escaped in temperate regions, found throughout the U.S. and s. Can.
| Life form | perennial | ||||||||||||
| Growth form | herb | ||||||||||||
| Growth support | - | ||||||||||||
| Foliage retention | deciduous | ||||||||||||
| Sexuality | hermaphrodite | ||||||||||||
| Pollination | entomogamy | ||||||||||||
| Spread | barochory | ||||||||||||
| Mature width (meter) | - | ||||||||||||
| Mature height (meter) | 0.8 | ||||||||||||
| Root system | - | ||||||||||||
| Rooting depth (meter) | - | ||||||||||||
| Root diameter (meter) | - | ||||||||||||
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| Fruit color | - | ||||||||||||
| Fruiting months | - | ||||||||||||
| Nitrogen fixer | - | ||||||||||||
| Photosynthetic pathway | - |
| Light |
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| Soil humidity | 
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| Soil acidity | 
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| Hardiness (USDA) | 
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| Uses | bee plant breeding experimental purposes fodder food food additive forage green manure medicinal ornamental |
| Edible | - |
| Therapeutic use | - |
| Human toxicity | - |
| Animal toxicity | - |
| Mode | - |
| Germination duration (days) | 7 - 14 |
| Germination temperacture (C°) | - |
| Germination luminosity | - |
| Germination treatment | - |
| Minimum temperature (C°) | - |
| Optimum temperature (C°) | 21 - 27 |
| Size | - |
| Vigor | - |
| Productivity | - |
| LSID | urn:lsid:ipni.org:names:77190497-1 |
| WFO ID | wfo-0000213469 |
| COL ID | 5JKGR |
| BDTFX ID | 41476 |
| INPN ID | 137673 |
| Wikipedia (EN) | |
| Wikipedia (FR) |