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Blackland Prairies

The Blackland Prairies area intermingles with the Post Oak Savannah in the southeast and has divisions known as the San Antonio and Fayette Prairies. This rolling and well-dissected prairie represents the southern extension of the true prairie that occurs from Texas to Canada. The upland blacklands are dark, calcareous shrink-swell clayey soils, changing gradually with depth to light marls or chalks. Bottomland soils are generally reddish brown to dark gray, slightly acid to calcareous, loamy to clayey and alluvial. The soils are inherently productive and fertile, but many have lost productivity through erosion and continuous cropping.

scientific name	common name(s)	image gallery
Helianthus divaricatus	Woodland Sunflower Rough Sunflower	93 images
Heracleum maximum	Common Cowparsnip Cow Parsnip	31 images
Hepatica nobilis	Hepatica
Hepatica nobilis var. acuta	Sharplobe Hepatica Sharp-lobed Hepatica Mountain Hepatica	34 images
Hepatica nobilis var. obtusa	Roundlobe Hepatica Round-lobed Hepatica Liverleaf	23 images
Helianthus strumosus	Paleleaf Woodland Sunflower Paleleaf Sunflower Woodland Sunflower	8 images
Heuchera villosa	Hairy Alumroot	5 images
Hieracium venosum	Rattlesnakeweed Rattlesnake Weed	9 images
Houstonia longifolia	Longleaf Summer Bluet Pale Bluets	10 images
Hypericum ascyron	Great St. John's-wort Giant St. John's-wort	2 images
scientific name	common name(s)	image gallery