Results 81 to 90 of about 114,650 (305)

Horizon scanning of potential invasive alien plant species and their distribution in Norway under a changing climate

open access: yesEcography, EarlyView.
Invasive alien plant species can cause considerable ecological, economic, and social impacts, and the number of impactful species will likely increase with globalisation and anthropogenic climate change. Preventing potentially invasive alien plant species from becoming introduced is the most cost‐effective way to protect Norway's ecosystems from future
Katy Ivison   +6 more
wiley   +1 more source

Isolation and Identification of Flavonoid Constituents from of Achillea conferta DC.

open access: yesJournal of Medicinal Plants, 2005
Background: Achillea (Asteraceae) comprises 115 species, which are mainly distributed in Europe, Asia and North Africa and also is an introduced plant in the New World.
S Saeidnia   +3 more
doaj  

Sensitivity of the grassland-forest ecotone in East African open woodland savannah to historical rainfall variation [PDF]

open access: yes, 2014
. Fossil pollen records provide key insight into the sensitivity of terrestrial ecosystems to climate change at longer time scales. However, tracing vegetation response to relatively modest historical climate fluctuations is often complicated by the ...
Gelorini, Vanessa   +2 more
core   +1 more source

Asteraceae

open access: yes, 2007
Perdicium radiale Linnaeus, Species Plantarum, ed. 2, 2: 1248. 1763, nom. illeg. "Habitat in Jamaica." RCN: 6410. Replaced synonym: Inula trixis L. (1759). Lectotype (Anderson in Brittonia 23: 349. 1971): Browne, Herb. Linn. No. 1003.3 (LINN). Current name: Trixis inula Crantz (Asteraceae).
openaire   +2 more sources

Floral Origin Determines the In Vitro Antibacterial Activity of Bee Pollen Collected From Western Oromia, Ethiopia

open access: yesFuture Postharvest and Food, EarlyView.
ABSTRACT Bee pollen has been used as a medicine and food supplement. The biological activity and nutrient composition of bee pollen depend on its floral origin. Therefore, it was aimed to determine the phenolic and flavonoid content and antibacterial activities of methanolic (99.9%) extract of bee pollens among flora. Floral origin was identified using
Ofijan Tesfaye
wiley   +1 more source

Distribution and diversity of exotic plant species in montane to alpine areas of Kosciuszko National Park [PDF]

open access: yes, 2013
Diversity and distribution of exotic plant taxa in Kosciuszko National Park in south-eastern Australia were reviewed based on 1103 records of exotics from 18 vegetation surveys conducted between 1986 and 2004.
Bear, Roxana   +2 more
core  

Inheritance of disc flower color in Helianthus petiolaris [PDF]

open access: yes, 2009
Disc flowers of Helianthus petiolaris (Asteraceae) are usually purple reddue to anthocyanin pigments in corolla lobes, style and stigma. However, yellow-flowered plants are occasionally found.
Delucchi, C.   +2 more
core   +1 more source

ASTERACEAE

open access: yesBothalia, 1993
AN EVALUATION OF HUTCHINSON’S BEETLE-DAISY ...
openaire   +2 more sources

Impact of land management on herbaceous vegetation diversity and forage provision in the Great Green Wall in Burkina Faso

open access: yesGrassland Research, EarlyView.
According to the disturbance gradient, the species richness of herbaceous vegetation increased from fenced (less disturbed) to fallow (most disturbed). The pastoral value and biomass production of grazing land were higher in protected areas (fenced land) than in unprotected areas (community forests and fallow land), suggesting that conservation ...
Issouf Zerbo   +4 more
wiley   +1 more source

Contributions to the flora and vegetation of Kagbeni (Mustan District, Central Nepal) [PDF]

open access: yes, 2006
Kagbeni and its irrigated oasis are surrounded by subdesert dwarf scrubland. In the present study, a list of 78 species of vascular plants is presented for Kagbeni and its immediate surroundings, supplemented with data on the distribution of the species ...
Kasperek, Gerwin
core  

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