n.
[L.]
(Bot.) A genus of rosaceous plants, including the raspberry and blackberry.
| Dictionary: Ru·bus |
[L.]
(Bot.) A genus of rosaceous plants, including the raspberry and blackberry.
| 5min Related Video: Rubus |
| Gardener's Dictionary: Rubus |
The botanical name for raspberry, blackberry, and other bramble fruits.
| Word Tutor: Rubus |
| WordNet: Rubus |
The noun has one meaning:
Meaning #1:
large genus of brambles bearing berries
Synonym: genus Rubus
| Wikipedia: Rubus |
| Rubus | |
|---|---|
| Rubus fruticosus | |
| Scientific classification | |
| Kingdom: | Plantae |
| Division: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Rosales |
| Family: | Rosaceae |
| Subfamily: | Rosoideae |
| Tribe: | Rubeae[1] |
| Genus: | Rubus L. |
| Species | |
|
See text. |
|
Rubus is a large genus of flowering plants in the rose family, Rosaceae, subfamily Rosoideae. Raspberries, blackberries, and dewberries are common, widely distributed members of the genus. Most of these plants have woody stems with prickles like roses; spines, bristles, and gland-tipped hairs are also common in the genus. The Rubus fruit, sometimes called a bramble fruit, is an aggregate of drupelets.
The blackberries, as well as various other Rubus species with mounding or rambling growth habits, are often called brambles. However, this name is not used for those like the raspberry that grow as upright canes, or for trailing or prostrate species such as most dewberries, or various low-growing boreal, arctic, or alpine species.
The genus Rubus is believed to have existed since at least 23.7 to 36.6 million years ago.[2]
Examples of the hundreds, if not thousands, of species of Rubus include:
The genus also includes numerous hybrids, both natural and bred by man, such as the Loganberry (Rubus × loganobaccus).
The genus Rubus is a very complex one, particularly the blackberry/dewberry subgenus (Rubus), with polyploidy, hybridization, and facultative apomixis apparently all frequently occurring, making species classification of the great variation in the subgenus one of the grand challenges of systematic botany.
Rubus species have a basic chromosome number of seven. Polyploidy from the diploid (14 chromosomes) to the tetradecaploid (98 chromosomes) is exhibited.
Some treatments have recognized dozens of species each for what other, comparably qualified botanists have considered single, more variable species. On the other hand, species in the other Rubus subgenera (such as the raspberries) are generally distinct, or else involved in more routine one-or-a-few taxonomic debates, such as whether the European and American red raspberries are better treated as one species or two. (In this case, the two-species view is followed here, with Rubus idaeus and R. strigosus both recognized; if these species are combined, then the older name R. idaeus has priority for the broader species.)
Molecular data has backed up classifications based on geography and chromosome number, but following morphological data such as the structure of the leaves and stems does not appear to produce a phylogenetic classification.[3]
The classification presented below recognizes 13 subgenera within Rubus, with the largest subgenus (Rubus) in turn divided into 12 sections. Representative examples are presented, but there are many more species not mentioned here.
|
|
| Wikimedia Commons has media related to: Rubus |
This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)
| brambleberry | |
| thimbleberry | |
| bramble (botany) |
| What is a shrub of the rubus family which attracts butterflies? Read answer... |
| Fruit-bearing bush of the genus Rubus what does it look like? | |
| What is the name of the author who created inspector rubus? | |
| Pronunciation rubus of fluorine? |
Copyrights:
![]() | Dictionary. Webster 1913 Dictionary edited by Patrick J. Cassidy Read more | |
![]() | Gardener's Dictionary. Taylor's Dictionary for Gardeners, by Frances Tenenbaum. Copyright © 1997 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. Read more | |
![]() | Word Tutor. Copyright © 2004-present by eSpindle Learning, a 501(c) nonprofit organization. All rights reserved. eSpindle provides personalized spelling and vocabulary tutoring online; free trial. Read more | |
![]() | WordNet. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. Read more | |
![]() | Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "Rubus". Read more |