| 词条 | Vaccinium padifolium | |||||||
| 释义 |
|image = Vaccinium padifolium.jpg |regnum = Plantae |unranked_divisio = Angiosperms |unranked_classis = Eudicots |unranked_ordo = Asterids |ordo = Ericales |familia = Ericaceae |genus = Vaccinium |species = V. padifolium |binomial = Vaccinium padifolium |binomial_authority = J.E. Sm. ex A.Rees }} Vaccinium padifolium (Madeira blueberry) is very common at elevations between {{convert|800|and|1700|m|ft}}. It grows mainly in crevices and exposed slopes and mountain plains. Fruits are used in preserves. It is endemic to the islands of Madeira and Porto Santo, Portugal. DescriptionIt is a semi-evergreen scrub to small tree 1.5–6 m tall. New branches are generally reddish and pubescent. Leaves are often flushed dark red in autumn 2.5–7 × 1–2(2.5) cm, oblong to elliptic, acute to acuminate, petiole short, pubescent. Calyx 3–4 mm, with five short, broad lobes up to 1.5 mm. Flowers on curved pedicels in erect, axillary, bracteate racemes. Corolla, 7–10 mm, globose to campanulate, the lobes very short. There are often five broad rose stripes on the white corolla. Berries up to 12 × 10 mm, ripening blue-black. ChemistryThe blue color of the berries is due to anthocyanins (Delphinidin 3-O-α-rhamnoside and anthocyanins triglycosides).[1] Picture galleryReferences1. ^Anthocyanin trisaccharides in blue berries of Vaccinium padifolium. Luis Cabrita, Nils Åge Frøystein and Øyvind M. Andersen, Food Chemistry, Volume 69, Issue 1, April 2000, Pages 33–36, {{doi|10.1016/S0308-8146(99)00230-7}}
3 : Vaccinium|Flora of Madeira|Endemic flora of Macaronesia |
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