| 词条 | Hypericum prolificum | ||||
| 释义 |
|image=Hypericum prolificum - Shrubby Saintjohnswort.jpg |taxon=Hypericum prolificum |parent = Hypericum subsect. Centrosperma |display_parents = 2 |authority = L.[1] |synonyms_ref= |synonyms= }}Hypericum prolificum, known as shrubby St. John's wort,[2] is a deciduous shrub in the genus Hypericum. It was named for its "prolific" number of stamens.[3] DescriptionHypericum prolificum is a shrub growing up to {{convert|2|m|abbr=on}} tall with elliptic to oblanceolate leaves up to {{convert|70|mm|abbr=on}} long and {{convert|15|mm|abbr=on}} broad.[4] The flowerheads have between 1 and 9 flowers, each {{convert|15–30|mm|abbr=on}} across with 5 golden yellow petals and numerous stamens.[4] The ovary is usually three-parted, though may have up to five parts in some individuals.[4]Distribution and habitatHypericum prolificum is native to the central and eastern United States and Ontario.[2][5] Habitats include riparian areas, slopes, thickets, swamp edges, and oak woodlands.[2][6]GalleryReferences1. ^{{cite web |title=Hypericum prolificum L.|url=http://beta.ipni.org/n/433747-1|website=ipni.org |publisher=International Plant Names Index|accessdate=2018-09-23}} {{Hypericum species Navbox}}{{Taxonbar|from=Q17812747}}2. ^1 2 {{eFloras|1|242416684|volume=6|Hypericum prolificum|first=Norman K. B. |last=Robson|accessdate=2018-09-23}} 3. ^{{Go Botany|genus=Hypericum|species=prolificum|access-date=2018-09-23}} 4. ^1 2 {{Cite web|url=http://hypericum.myspecies.info/taxonomy/term/921|title=Hypericum prolificum|website=hypericum.myspecies.info|access-date=2018-10-21}} 5. ^{{PLANTS|id=HYPY|taxon=Hypericum prolificum|accessdate=2018-09-23}} 6. ^{{Michigan Flora|genus=Hypericum|species=prolificum|id=1466}} 2 : Hypericum|Flora of North America |
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