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Magnoliopsida
Aster Linnaeus, 1753
EOL Text
Aster spp. (Aster)
(insects suck nectar or their activity is unspecified; observations are from Lisberg & Young, Smith et al., and Grundel et al.)
Bees (long-tongued)
Apidae (Bombini): Bombus fraternus (Smh), Bombus impatiens (Smh), Bombus pensylvanicus fq (Smh), Psithyrus variabilis sn (Smh); Anthophoridae (Ceratinini): Ceratina calcarata (Gnd), Ceratina dupla (Gnd), Ceratina mikmaqi (Gnd), Ceratina strenua (Gnd); Anthophoridae (Epeolini): Epeolus spp. sn (Smh); Anthophoridae (Eucerini): Melissodes communis communis fq (Smh), Melissodes denticulata (Smh, Gnd), Melissodes trinodis sn fq (Smh), Melissodes wheeleri (Smh), Svastra aegis (Smh); Anthophoridae (Exomalopsini): Anthophorula asteris [syn. Exomalopsis asteris] (Smh); Anthophoridae (Nomadini): Nomada spp. sn (Smh), Nomada vincta sn (Smh); Anthophoridae (Xylocopini): Xylocopa virginica (Smh); Megachilidae (Coelioxini): Coelioxys germana sn (Smh); Megachilidae (Megachilini): Megachile mendica (Smh); Megachilidae (Osmiini): Heriades variolosus (Gnd)
Bees (short-tongued)
Halictidae (Halictinae): Agapostemon virescens (Gnd), Augochlora pura (Gnd), Augochlorella aurata (Smh, Gnd), Augochloropsis metallica (Gnd), Lasioglossum pectorale (Gnd), Lasioglossum subviridatum (Gnd), Lasioglossum tegulare (Smh); Colletidae (Hylaeinae): Hylaeus affinis (Smh), Hylaeus mesillae (Smh); Andrenidae (Andreninae): Andrena runcinatae (Gnd); Andrenidae (Panurginae): Pseudopanurgus solidaginis (Gnd)
Beetles
Mordellidae: Mordellistena suturella (LY)
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | Copyright © 2002-2015 by Dr. John Hilty |
Source | http://www.illinoiswildflowers.info/flower_insects//plants/aster.html |
Rounded Global Status Rank: G5 - Secure
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | Annable, C., NatureServe |
Source | http://explorer.natureserve.org/servlet/NatureServe?searchName=Stenotus+acaulis |
Holotype for Aster schistosus E.S. Steele
Catalog Number: US 494524
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): E. S. Steele
Year Collected: 1907
Locality: Millboro., Bath, Virginia, United States, North America
- Holotype: Steele, E. S. 1911. Contr. U.S. Natl. Herb. 13: 373.
License | http://creativecommons.org/licenses/by/3.0/ |
Rights holder/Author | This image was obtained from the Smithsonian Institution. Unless otherwise noted, this image or its contents may be protected by international copyright laws. |
Source | http://collections.mnh.si.edu/search/botany/?irn=2158485 |
Barcode of Life Data Systems (BOLDS) Stats
Public Records: 2
Specimens with Barcodes: 2
Species With Barcodes: 1
Foodplant / pathogen
Aster Yellows infects and damages live, yellowed, mottled leaf of Callistephus chinensis
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | BioImages, BioImages - the Virtual Fieldguide (UK) |
Source | http://www.bioimages.org.uk/html/Aster.htm |
Stenotus acaulis is a species of flowering plant in the aster family known by the common name stemless mock goldenweed. It is native to the western United States, where it grows in rocky soils in sagebrush plateau and mountain habitats. It is a perennial herb usually forming a compact tuft or mat of hairless to hairy and sometimes glandular herbage. The linear to widely lance-shaped leaves are up to 8 or 10 centimeters long with rigid, hair-lined edges. The inflorescence is a solitary flower head or small cluster of a few heads. The flower head contains yellow disc florets and several yellow ray florets each about a centimeter long.
License | http://creativecommons.org/licenses/by-sa/3.0/ |
Rights holder/Author | Wikipedia |
Source | http://en.wikipedia.org/w/index.php?title=Stenotus_acaulis&oldid=568555807 |
Canada
Origin: Native
Regularity: Regularly occurring
Currently: Present
Confidence: Confident
United States
Origin: Native
Regularity: Regularly occurring
Currently: Present
Confidence: Confident
Canada
Rounded National Status Rank: N5 - Secure
United States
Rounded National Status Rank: NNR - Unranked
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | NatureServe |
Source | http://explorer.natureserve.org/servlet/NatureServe?searchName=Aster+alpinus |
Foodplant / pathogen
Aphelenchoides ritzemabosi infects and damages limp, discoloured leaf of Aster
Plant / resting place / within
puparium of Calycomyza humeralis may be found in leaf-mine of Aster
Foodplant / spot causer
Cercosporella anamorph of Cercosporella virgaureae causes spots on live leaf of Aster
Foodplant / miner
larva of Liriomyza eupatorii mines leaf of Aster
Other: minor host/prey
Foodplant / miner
larva of Liriomyza pusilla mines leaf of Aster
Other: minor host/prey
In Great Britain and/or Ireland:
Foodplant / miner
larva of Liriomyza strigata mines leaf of Aster
Foodplant / miner
larva of Nemorimyza posticata mines leaf of Aster
Plant / resting place / within
puparium of Ophiomyia maura may be found in leaf of Aster
Foodplant / pathogen
Phialophora anamorph of Phialophora asteris infects and damages live leaf of Aster
Foodplant / saprobe
loosely gregarious, sometimes linearly arranged, covered then projecting pycnidium of Phomopsis coelomycetous anamorph of Phomopsis achilleae var. asteris is saprobic on dead stem of Aster
Foodplant / feeds on
Phytonemus pallidus feeds on live Aster
Other: major host/prey
Foodplant / miner
larva of Trypeta zoe mines leaf of Aster
Foodplant / miner
larva of Vidalia spinifrons mines leaf of Aster
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | BioImages, BioImages - the Virtual Fieldguide (UK) |
Source | http://www.bioimages.org.uk/html/Aster.htm |
In areas of sympatry, Stenotus acaulis usually is easily distinguishable from S. armerioides by its broadly oblanceolate leaves with markedly scabrous margins, and weakly unequal phyllaries with longer than broad green portions and acute apices. These characters sometimes fail where the ranges of the two species overlap, especially in Colorado and eastern Wyoming, and (as noted below) near the limit of the range of S. armerioides in southwestern Utah. Such plants frequently must be assigned to one species or the other based on phyllary characters alone.
As many as eight species have been described within what is recognized here as a single variable taxon comprising intergrading populations. Most treatments published subsequently to that of H. M. Hall (1928) have recognized two infraspecific taxa within S. acaulis, subsp. acaulis with scabrous, ± basally disposed leaves, and subsp. glabratus with glabrous, ± cauline leaves. Those two phases intergrade extensively and I have been unable to satisfy myself with their circumscription. Moreover, their recognition appears to obscure relationships among populations that appear to be unified by a suite of characters but would be assigned to different infraspecific taxa were pubescence the primary discriminating feature. Careful work may yet shed light on ecogeographically distinct populations worthy of taxonomic recognition. Two of those merit comment here.
The first, members of which have been described as Stenotus acaulis var. kennedyi Jepson and as a distinct species by other authors, comprises populations found in northeastern California, northwestern Nevada, and adjacent parts of Oregon and Idaho. Individual plants produce extensive aboveground woody growth and possess large, campanulate heads, with relatively few, broadly oblong, 3-nerved phyllaries with obtuse or ± rounded apices, and thinly sericeous or glabrous cypselae. Each of those characters varies independently of the others, however, and plants grade into forms typical of the species in central Idaho and Nevada.
The second is an exceptionally narrow-leaved form, historically segregated as Stenotus falcatus Rydberg, found in southwestern Utah and northeastern Nevada. Vegetatively, these plants are similar to narrow-leaved specimens of S. armerioides var. armerioides, approaching that taxon in habit, especially their possession of stout caudex branches and rather long-petiolate leaves with entire margins and viscid faces. Individuals often have at least 2, and usually 3–4 small, campanulate heads per stem, with strongly cuspidate phyllaries. At their extreme, populations of this form could easily be taken for a distinct species; however, plants grade into the typical phase in central Utah and larger collections of populations demonstrate a range of variation from one phase to the other. The taxon described recently from Juab County, Utah, as Haplopappus acaulis var. atwoodii may belong to this morphotype, but I have not seen the type material.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=220012965 |