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Vit.En.

Vit.En

Equisetum arvense

Equisetum arvense

Fam. Equisetaceae
Specie: E. arvense
Forma biologica: geofita rizomatosa (Gr)
Ciclo di vita: poliennale-perenne
Altezza: 20-50 cm
Apparato radicale: radici fascicolare da rizoma
Fusto: ipogeo rizoma; epigeo sterile è ruvido, articolato, con internodi verdi; epigeo fertile è di colore giallastro
Foglie: sono setoliformi dotate di un’unica nervatura e disposte in verticilli
Fiore: spiga di sporangi detta strobilo, di forma ovata-oblunga
Frutto: assente
Sporificazione: marzo-maggio
Habitat: acquitrini, incolti umidi e sabbiosi, fossi, campi coltivati

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