The Crown of Pastures

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Scientific name:
Hippocrepis comosa L. subsp. comosa
Common name:
Horseshoe vetch
Family:
Fabaceae
Biological form:
H caesp - Emicriptofita cespitosa

Characteristics

Habit: A subshrub-like, glaucous plant, noticeably hairy when young and tending to become subglabrous over time. It has 10-20 cm tall, ascending, branched stems, which are woody at the base and herbaceous above. Leaves: Compound, imparipinnate, consisting of 3-5 pairs of elliptical or obovate leaflets (generally twice as long as they are wide). The apex is retuse and apiculate; the underside is pubescent to subglabrous. At the base are small, separate stipules that do not embrace the stem, with a narrow, triangular, membranous appearance and a reddish-green color. Flowers: Grouped in 5-12 axillary umbrella-shaped inflorescences, supported by long, reddish, grooved peduncles that significantly exceed the axillary leaves in length. The calyx is gamosepalous with erect, unequal teeth, shorter than the calyx tube. The corolla is typically papilionaceous and bright yellow; the vane has a longer claw than the calyx, running parallel to the carina for up to two-thirds of its length, then bending upward, displaying thin purple or violet veins along the back. Fruit: A modified legume called lomentum; it is pendulous, 2-3 cm long, and entirely covered with reddish glands. Its shape is markedly curved and arched, resembling a series of horseshoes joined in a row, with deep incisions equal to half its width. These constriction delimit 2 to 6 geometric articulations which, upon maturity, separate from one another, releasing the individual curved seeds contained within. Flowering: April - July.

Distribution and habitat

Chorological type: Central European/Southern European. Distribution in Italy: Widely distributed throughout the country, from hilly areas to high mountain ranges. Habitat: Grows in dry and arid places, rocky meadows and stony pastures, with a clear preference for calcareous substrates, from the plains up to 2,900 meters above sea level.

Etymology

Genus (Hippocrepis): Derived from the Greek words hippos (horse) and krepis (shoe, sandal), literally translated as "horseshoe," explicitly referring to the fruit's unique, complex morphology.

Species (comosa): Epithet derived from the Latin adjective comosus (hairy, bushy, tufted), which refers to the plant's dense, bushy appearance or the abundance of its tufts of leaves and flowers.