Index- plants in this Family
Onagraceae / Evening-Primrose
Bigfruit Evening-primrose (Oenothera macrocarpa)
Bigfruit Evening-primrose is also known as Missouri Evening-Primrose (Oenothera missouriensis).

Plant Type: This is a herbaceous plant, it is a perennial which can reach 50cm in height (20inches). Usually decumbent with the flowers nearly on the ground.
Leaves: The leaves are alternate. Leaves can reach 10cm in length (4inches). The leaves are usully entire, narrowly lanceolate.
Flowers: The flowers have 4 Regular Parts and are up to 10cm wide (4 inches). They are yellow. Blooms first appear in late spring and continue into mid summer.
Fruit: A four sided winged pod to 7cm (2.8") long.
Habitat: Dry open areas in rocky (calcareous) soil. Barrens and cedar glades.
Range: From Nebraska south to Texas and east to the south west of Illinois and a few places in the Central Basin of Tennessee.

      Color Photo     More Info      Classification


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© Daniel Reed

Common in Kansas this species is rare in Tennessee, known from only a few counties.

Similar Species: Stemless Evening-Primrose, Oenothera triloba



© Daniel Reed   E-mail      Image use policy

Note the sharply angled seed pod in the lower left of the photo. This shot taken at Flat Rock Cedar Glades and Barrens in Rutherford County Tennessee.


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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
Rosidae
Rose
||Family
Onagraceae
Evening- Primrose
|Subfamily

|Tribe

|Genus
Oenothera

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www.2bnTheWild.com - Wildflowers of the Southeastern United States, Page updated on 8/27/2001 7:35:22 AM.