Coronilla varia L.
= Securigera varia (L.) Lassen
1730 (2). C. varia L., Sp. PI. ed.l (1753) 743; Hayek, Prodr. Fl. Penins. Balc. I (1926) 919; Ball, Fl. Eur. II (1968) 183 — Пъстра зайчина
Fam: Leguminose Juss. (Fabaceae)
Genus: Coronilla L.
Species: Coronilla varia L.
English Name: Crownvetch or Purple crown vetch
A perennial plant. Rhizome horizontally or obliquely, simple or branched. Highly branched stems, creeping, low lying or upright, 20.0 - 100.0 (130.0) cm tall, smooth and bare or more or less rough than scaly hairs, with longitudinal edges. Stipule 3.0 - 4.0 mm long, linear, tunicates free. Leaves imparipinnate. Leaves 3 - 6 (7) couples (6.0) 7.0 - 14.0 (20.0) mm long and (3.0) 4.0 - 10.0 (12.0) mm wide, elliptical or elliptical lancet, short sharp, edge thin membranous, without streaks or unclear feather-like a network of veins. Inflorescences stems most often longer than the stipule leaves, rarely equal to or shorter than these. Inflorescences dense heads. Bracts 2 times shorter than blossom stems, linear lancet, membranous. The blossom stems longer than the calyx, rarely equal to it. Blossoms (5) 10 - 20 (25). Calyx wide and pipe-like bell-shaped, 4 times shorter than the corolla, with 5 triangular styliform, 2 times shorter than tube teeth and flower stalks naked. Corolla (6.0) 8.0 - 13.0 (15.0) mm long, varicolored - blue to blue - white. Flag (6.0) 11.0 - 13.0 mm long and 6.0 - 7.0 (7.5) mm wide, light purple or pink, leaf-blade ovoid, on top entire, at thebase with two ears, nail threadlike, 1/3 of its length. Wings longer than the flag, white, leaf blade incorrectly elliptical, nail threadlike, 1/4 of its length, slightly longer than the calyx, the tab reaches half of the nail. Keel shorter than the flag and wings, leaf blade elliptical medullary, neb-like bell-shaped, nail a third of the leaf blade, light pink, purple on top. Beans 20.0 - 30.0 (50.0) mm long, with a beak, in cross-section foursquare, 3 - 6 (8) – part, more or less curved, straight beak, not pendulous; the parts 4.0 - 6.0 mm, rounded, rectangular. Seed 2.5 - 3.0 mm long, linearly extended to almost cylindrical, brown to reddish brown.
1 Blossoms 5 - 10, 7.0 - 9.0 mm in length. Leaves 6.0 - 9.0 mm in length and 3.0 - 4.0 mm wide …...................................... Var. paucifolia Griseb., Spicil. Fl. Rum. Bithyn. I (1843) 61; Hayek, 1.c Central Stara Planina (Gabrovo) Middle Forest (Lozen Mountain), Pirin, Rila, Western and Middle Rhodopes mountains.
1* Blossoms more than 10, 10.0 - 15.0 mm in length. Leaves 9.0 - 20.0 mm in length and 5.0 - 12.0 mm wide ...................................................... 2
2 Stems bare, smooth ...................................................................................................... var. varia. Distributed within the species floristic region.
2* Stems more or less rough than flaky and bristly hairs .......var. hirta Boiss., Fl. Or. II (1872) 182; Hayek, 1. c. Black Sea Coast (Varna region) Northeast Bulgaria (Shumen), Middle Forest (Gabrovo) Middle Rhodopes (Asenovgrad region), Thracian Lowland (Stara Zagora and Sadovo).
Natural boundaries of the area in Europe are not clear. In Western and Northern Europe introduced as a fodder plant.
Note. In the country are distributed populations with smaller leaves (f. Mileilla Beck), those with upright and lying stems, and are found populations of white flowers (f. alba Pluskol), heads dense and colorful (f. opuliflora Uhrova), wavy curved stems (f. batovae Prod.). They all have character modification.
¹ developed by St. Kozhuharov.
„Флора на НР България”, том VI, БАН, София, (1976)
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Securigera varia (synonym Coronilla varia), commonly known as crownvetch or purple crown vetch, is a low-growing legume vine. It is native to Africa, Asia and Europe and is commonly used throughout the United States and Canada for erosion control, roadside planting and soil rehabilitation. It has become an invasive species in many states of the US.
Crownvetch grows 1 to 2 feet tall and bears small clusters of 1/2-inch pink and white flowers from early summer to late fall. The variety Penngift produces mounds of pink flowers. Crownvetch is a tough, aggressive spreading plant that will crowd out its neighbors in a show garden but is well suited to a sunny bank, where it will grow for decades with little to no fertilizing, mowing, or weeding since the thick foliage prevents weeds from growing amongst it. Its deep, tenacious, complex root system  and thick, fern-like leaves provide excellent erosion control where it is used as a ground cover. However, this legume has a very long germination period of about 6 months and does not create full coverage until two or three years later.
From Wikipedia, the free encyclopedia
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Flowering Time: Blooms: V - VII, fruitful VII - IX.
References: „Флора на НР България”, том VI, БАН, София, (1976), Wikipedia, the free encyclopedia
Distribution in Bulgaria: In grassy places in forests, scree, in trenches and ditches as ruderal, in the lowlands and mountains. Widespread from sea level to 2000 meters altitude. (Conspectus of the Bulgarian Vascular Flora) = conspectus&gs_l= Zlc.
Distribution: Central and Southern Europe, the Mediterranean, the Caucasus, Southwest Asia.
Conservation status and threats: not protected species in Bulgaria by the Biodiversity Law. Законодателство на Република България: Закон за биологичното разнообразие
Medical plant: yes, it is - http://lex.bg/laws/ldoc/2134916096
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