Lathyrus latifolius L.

L. latifolius L., Sp. PI. ed. 1 (1753) 733; Vel., Fl. Bulg. (1891) 157; Ball, Fl. Eur. II (1968) 141; L. megalanthus Steudel, Nomencl. ed. 2, II (1840) 14; Hayek, Prodr. Fl. Penins. Balc. I (1926) 817 — Широколистно секирче

Fam:   Leguminose Juss. (Fabaceae)
Genus:   Lathyrus L.
Species:Lathyrus latifolius L.
English Name: Perennial peavine, Perennial pea, Broad-leaved everlasting-pea, or just Everlasting pea


Perennials. Rhizome bold, branched, upright. Stems single or rarely few, 30.0 - 100.0 cm long, erect or ascending, rarely half-lying, at thethe base more or less branched, with four edges, widely winged, naked; wings to 5.0 mm wide, wider than half the width of the stem, less equal to its width. Stipule 2.0 - 4.0 cm long and (7.0) 10.0 - 15.0 mm wide, shorter or equal to the petiole, 2 times shorter than the leaflets, wider than half the width stem, spear, naked. Leaf axis shorter than the sheets, branched, tendril. Leaflets a couple (3.0) 4.0 - 6.0 (7.0) cm long and (2.0) 6.0 - 30.0 (35.0) mm wide, narrow or wide elliptical to lance elliptic, short pointed tip, network of veins, naked; slightly longer than the handles or substantially equal to them, broad winged; wings almost equal to the width of the handle. Inflorescences handle 2 - 4 times longer than the leaf at the influorescence, goals. Bracts up to 1/3 of the length of the blossom stalks, styliform to filamentary. Blossom handles of the calyx equal or slightly longer. Blossoms 3 - 25 (30), (10.0) 12.0 - 15.0 (17.0) mm long. Calyx 2 - 3.5 times shorter than corolla, widely bell-shaped, with 10 vague streaks, naked; teeth linear lanceolate, equal in length to the tube, unequal to each other, the above 2 times longer. Corolla red. Flag (11.0) 13.0 - 16.0 (17.0) mm long and (14.0) 16.0 - 20.0 (22.0) mm wide, nearly circular, concave on top, at the base triangular, narrower short claw, bright red. Wings equal to the flag, with short thin and hooked nail, a little lighter than the flag, leaf blade elliptical, 2 times longer than the nail, tongue constitutes 1/2 of the nail. Keel 10.0 -  12.0 mm long and 6.0 - 7.0 mm wide, on top of almost dull, shorter than the wings, the leaf blade elliptical triangular, as long as the nail, to 2 times shorter than it tongue, gradually curved to the top. Beans (4.0) 5.0 - 8.0 (10.0) cm long and (4.0) 5.0 - 7.0 (8.0) mm wide, linear, veined with lines of network, on top with a short small nose, narrowed to the base, in the dorsal seam 3 with slight longitudinal ribs, naked or slightly scattered short bristly fiber. Seeds 10 - 15, brown, spherical, reticular rough with small warts; scar 1/5 - 1/3 the circumference of the seed.


var. latifolius. Leaflets elliptic to lance elliptical, to 20.0 mm wide. Stipule closely spear. The wings of the stem closer than 5,0 mm. Widespread.
var. brachypterus (Alef.) Kož .., st. n .; L. brachypterus Alef., Bonpl. IX (1861) 151; L. latifolius f. obtusifolius (Beck) Hayek, op. c. p. 818. slips broadly elliptical, 20.0 - 35.0 mm wide. Stipule widely spear. The wings of the stem 5.0 mm wide. Northeast Bulgaria (Tervel region - forest Karakuz), Danubian Plain (Mihailovgrad, Lom).

Economic significance. Good forage plant, but due to ascending or half lying stems difficult for haymaking.

From: „Флора на НР България”, том VI, БАН, София, (1976)

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Lathyrus latifolius, the perennial peavine, perennial pea, broad-leaved everlasting-pea,[1] or just everlasting pea, is a robust, sprawling perennial in the Pea Family Fabaceae. It is native to Europe but is present on other continents, such as North America and Australia,[2] where it is most often seen along roadsides.[3]
Lathyrus latifolius has winged hairless stems, and alternating blue green compound leaves consisting of a single pair of leaflets and a winged petiole about 2" long. The leaflets are narrowly ovate or oblong-ovate, smooth along the margins, hairless and up to 3" long and 1" across. There is a branched tendrils between the leaflets.
Short racemes of 4–11 flowers are produced from the axils of the leaves. The flowers, which are unscented, are about ¾–1" across with a typical structure for Faboideae, with an upper standard and lower keel, enclosed by lateral petals. There are 5 petals, which are purplish pink, fading with age. There is a green calyx with 5 teeth, often unequal. The blooming period lasts about 2 months during the summer and early autumn.[4]
The flowers are replaced by hairless flattened seedpods, about 2" long and ½" wide, with several seeds inside. The seedpod, which is initially green, gradually turns brown, splitting open into curled segments, flinging out the seeds. The seeds are dark and oblong to reniform in shape.
Relations to insect life
Bumblebees pollinate the flowers. Butterflies visit the flowers for their nectar, but do not pollinate. Epicauta fabricii (Fabricius Blister Beetle), the caterpillars of Grammia oithona (Oithona Tiger Moth) and some herbivores feed on the leaves. However the seeds are poisonous.[4]
From Wikipedia, the free encyclopedia

Flowering Time: Blooms: V - VI, fruitful: VI - VII.

References: „Флора на НР България”, том VI, БАН, София, (1976), Wikipedia, the free encyclopedia

Distribution in Bulgaria: Among bushes, in the plains and foothills. Widespread up to 900 m altitude. (Conspectus of the Bulgarian Vascular Flora) = conspectus&gs_l= Zlc.

Distribution: Central, South, West and partly North (Norway - probably adventitious) Europe, Mediterranean.

Conservation status and threats: not protected species in Bulgaria by the Biodiversity Law. Законодателство на Република България: Закон за биологичното разнообразие

Medical plant: it is not -

1. 2. 3. 4. 5. 6.

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