Index- plants in this Family
Asteraceae / Aster
Annual Marshelder (Iva annua)
Annual Marshelder is also known as Rough Marsh Elder.

Plant Type: This is a herbaceous plant, it is a annual which can reach a height of 2 Meters (7 feet ) . Often less than half that height. Branched, hairy
Leaves: The leaf arrangement is opposite. Leaves can reach 15cm in length (6inches). Leaves can be as wide as 7 cm (2.75inches). Each leaf irregulary toothed. The upper leaves may be alternate.
Flowers: The flower parts are not discernable with the naked eye . They are green. Blooms first appear in late summer and continue into early fall. Flowers in clyndrical spikes in a branched inflorescence, from the leaf axils and terminal.
Habitat: Moist open areas, disturbed sites.
Range: Widespread in the southern plains states especially Kansas and Oklahoma but also south and north in the plains, introduced in scattered locations east from Maine to north Florida.

      Color Photo     More Info      Classification


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See the links below this image for other images. (1)
© Darel Hess   E-mail      Image use policy


OTHER IMAGES
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Iva annua - close view of flower  © Darel Hess

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More Info:  
The Search below may provide more information about this species. Some of URLs may have been used as a source for this page not otherwise cited. Most of the information not cited comes from multiple sources that can be found in the Books page. The USDA plant links are provided by: USDA, NRCS 1999. The PLANTS database (http://plants.usda.gov/). National Plant Data Center, Baton Rouge, LA 70874-4490 USA. You can check species names at ITIS Advanced Search to see if they meet the current ITIS taxonomic criteria.
 

By: Newcomb, Lawrence and Illustrated by Morrison, Gordon. 1977, Little, Brown and Company, ISBN:0-316-60442-9

One of the best general guides to wildflowers of the North Eastern and North Central United States. Newcomb's key is an excellent, simple method for identifying plants. Newcomb has drawings for almost every plant mentioned that are excellent aids to identifying the species. Though only the more common plants are covered this is often the first book I pick up when trying to identify a wildflower.


Wildflo wers of Tennessee the Ohio Valley and the Southern Appalachians
By: Dennis Horn and Tavia Cathcart and Thomas E. Hemmerly and David Duhl. , ISBN:1551054280

This is perhaps the best of many field guides covering this region. Featuring 446 excellent color photographs (located with the text) and mentioning as similar to those illustrated are another 800 or so species for a total coverage of over 1,200 species. The start of each family section includes line drawings of some of the species showing important features. The text includes the usual description, bloom season, range, habitat and additionally includes information such as medical uses and lore and how the species was named. This is the official field guide of the Tennessee Native Plant Society.



Classification:  
Kingdom
Plantae
Plants
|Division
Magnoliophyta
Angiosperms / Flowering Plants
|Class
Magnoliopsida
Dicots / Two Seed Leaves
|Subclass
Asteridae
Aster
||Family
Asteraceae
Aster
|Subfamily

|Tribe

|Genus
Iva

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www.2bnTheWild.com - Wildflowers of the Southeastern United States, Page updated on 11/3/2001 6:06:05 PM.