نتایج جستجو برای: asteraceae description

تعداد نتایج: 278014  

Journal: :Türler ve habitatlar 2022

Candollea (Asteraceae), a new genus from Türkiye, was introduced to the scientific world and became homonymous. The name of Kandemiria (Asteraceae) replaced at rank due presence many previous generic names for Candollea. This is based on Scorzonera coriacea, S. davisii, elata, mollis, szowitzii turkestanica s.l. species with typical features, such as perennial herb; several branched, long, erec...

Journal: :Turkish Journal of Agriculture - Food Science and Technology 2019

Journal: :South African Journal of Botany 2017

Journal: :Annals of the Missouri Botanical Garden 1978

Journal: :American journal of botany 2002
Shiqiang Wan Tong Yuan Sarah Bowdish Linda Wallace Scott D Russell Yiqi Luo

We examined the responses of an allergenic species, western ragweed (Ambrosia psilostachya DC.), to experimental warming and clipping. The experiment was conducted in a tallgrass prairie in Oklahoma, USA, between 1999 and 2001. Warming increased ragweed stems by 88% when not clipped and 46% when clipped. Clipping increased ragweed stems by 75% and 36% in the control and warmed plots, respective...

2016
Sebastiano Barbagallo Juan M. Nieto Nafría

A new species of aphid, belonging to the genus Macrosiphoniella Del Guercio, 1911, is described using three samples collected in Iran on Helichrysum armenium (Asteraceae, Inuleae) by the late Prof. G. Remaudière. Both apterous and alate viviparous females of the new taxon, Macrosiphoniella remaudiereisp. n., are described and compared to corresponding morphs of the closely allied Macrosiphoniel...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1997
K Bremer M H Gustafsson

The sunflower alliance of families comprises nearly 10% of all flowering plant species and includes the largest of all plant families, the sunflower family Asteraceae, which has 23,000 species, and the bellflower family Campanulaceae. Both are worldwide in distribution, but the majority of their species occur in the northern hemisphere. Recently it has been shown that a number of small, woody f...

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