Results 91 to 100 of about 13,572 (193)

Cornus florida 'Weaver's White': 'Weavers White' Flowering Dogwood

open access: yesEDIS, 2003
The state tree of Virginia, Flowering Dogwood grows 20 to 35 feet tall and spreads 25 to 30 feet. This cultivar appears to be well adapted to USDA hardiness zones 8 and 9.
Edward Gilman, Dennis Watson
doaj   +1 more source

Austrocedrus from the Late Cretaceous of Antarctica and its implications for the early evolution of southern cypresses (Callitroideae, Cupressaceae)

open access: yesAmerican Journal of Botany, Volume 113, Issue 9, September 2026.
Abstract Premise The modern distribution of the southern cypresses, Callitroideae (Cupressaceae), reflects a classic Gondwanan distribution. The initial diversification of Callitroideae is estimated to have occurred during the Cretaceous, yet fossils from this period are rare, hampering our understanding of its early evolutionary history.
Kelly C. Pfeiler   +5 more
wiley   +1 more source

Seed‐cone architecture of Pararaucaria utahensis Gee, Howell et Dayvault sp. nov. (Cheirolepidiaceae) from the Upper Jurassic Morrison Formation of Utah, USA

open access: yesAmerican Journal of Botany, Volume 113, Issue 9, September 2026.
Abstract Premise Although Pararaucaria seed cones were first described 90 years ago, only in the last dozen years have we discovered the greater extent of the species diversity and paleogeographic range of the genus. Pararaucaria is now known across the mid‐latitudes of the Lower Jurassic to Lower Cretaceous in the northern and southern hemispheres ...
Carole T. Gee   +2 more
wiley   +1 more source

Chemophenetic Analysis of Ten Wild‐Growing East Adriatic Helichrysum italicum (Roth) G. Don (Gnaphalieae, Asteraceae) Populations

open access: yesChemistry &Biodiversity, Volume 23, Issue 9, September 2026.
Essential oils of immortelle are well known for their diversity in composition, but most studies on phytochemistry focus on bioactivity, while variability has rarely been directly studied. We investigated variability in the composition of essential oils and extracts from different populations along the east Adriatic coast, as well as environmental ...
Milica Trajković   +5 more
wiley   +1 more source

Identification and Expression Analysis of C2H2-Type Zinc Finger Protein (C2H2-ZFP) Genes in Bougainvillea in Different Colored Bracts

open access: yesHorticulturae
Bougainvillea spp. possesses vibrantly pigmented bracts that exhibit high ornamental value. Zinc finger proteins (ZFPs), one of the most extensive transcription factor families in plants, are implicated in diverse biological functions, including plant ...
Yushan Wang   +5 more
doaj   +1 more source

Bracts and long-tube flowers of hummingbird-pollinated plants are conspicuous to hummingbirds but not to bees

open access: yes, 2020
The bee avoidance' hypothesis posits that the colour of hummingbird-pollinated flowers will exclude bees, especially in long-tubed flowers, which are more subject to bee nectar robbers.
Bergamo, Pedro Joaquim   +5 more
core   +1 more source

Nomenclature Survey of the Genus Amaranthus (Amaranthaceae). 13. The Identity of Amaranthus tortuosus

open access: yesFeddes Repertorium, Volume 137, Issue 3, September 2026.
ABSTRACT The name Amaranthus tortuosus, a species described by Hornemann in 1819, is currently treated in different ways, either as an accepted name, as a synonym of A. dubius or A. hybridus s.str., or as an unplaced name. In order to clarify its application, we reassessed its taxonomic identity within the genus Amaranthus.
Duilio Iamonico, Thomas Raus
wiley   +1 more source

Cotton bracts are adapted to a microenvironment of concentrated CO2 produced by rapid fruit respiration

open access: yes, 2015
BACKGROUND and AIMS: Elucidation of the mechanisms by which plants adapt to elevated CO2 is needed; however, most studies of the mechanisms investigated the response of plants adapted to current atmospheric CO2.
Chow, Wah Soon   +5 more
core   +1 more source

Piper longiapiculatum (Piperaceae), a New Species From the Brazilian Amazon Piper longiapiculatum (Piperaceae), uma Nova Espécie da Amazônia Brasileira

open access: yesFeddes Repertorium, Volume 137, Issue 3, September 2026.
ABSTRACT In order to address the many lacunae in Amazonian Piper taxonomy and geography, we performed a field expedition in the Serra do Divisor National Park (Acre state, Brazil), resulting in the discovery of a new species, Piper longiapiculatum, herein described and compared to morphologically similar taxa.
Gabriel Marcusso Marcusso   +4 more
wiley   +1 more source

Lantana delicata (Verbenaceae), a New Species From Brazil, and Additional Updates Within the Genus

open access: yesFeddes Repertorium, Volume 137, Issue 3, September 2026.
ABSTRACT In this study, we present some novelties in Lantana, a taxonomically complex genus of Verbenaceae. These include (1) the description of L. delicata, a new species from Brazil; (2) the lectotypification of the name L. magnibracteata; and (3) the recognition of L. fucata f. albiflora, previously regarded as a synonym of L.
Pedro Henrique Cardoso   +6 more
wiley   +1 more source

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