The Tallgrass Prairie in Illinois

Images of Prairie Plants — Genera Beginning with the Letter "H"

Habenaria leucophaea or Platanthera leucophaea (prairie white fringed orchid) [Orchidaceae, Orchid Family] — listed as ENDANGERED in Illinois and THREATENED in the United States

habit of plant in flower
inflorescence
Click here for a distribution map in Illinois from the Illinois Plant Information Network

Helenium autumnale (yellow or common sneezeweed)

habit of plant in flower; Grant Creek Prairie Nature Preserve, Will County, Illinois
inflorescence of flower heads; Long Run Seep Nature Preserve, Will County, Illinois
Click here for a distribution map in Illinois from the Illinois Plant Information Network

Helianthus angustifolius (narrow-leaved or swamp sunflower) [Asteraceae or Compositae, Sunflower Family] — This is not a prairie plant, but these photos illustrate the general structure of flower heads in sunflowers.

macro of one whole flower head ; plants cultivated at the Illinois Natural History Survey, Champaign
flower head in longitudinal section
individual disk flowers
flower head beginning to set fruit

Helianthus grosseserratus (sawtooth sunflower) [Asteraceae or Compositae, Sunflower Family]

habit of plant in flower; Loda Cemetery Prairie Nature Preserve, Iroquois County, Illinois
inflorescence; prairie restoration at Peck Farm, Geneva Park District, Kane County, Illinois
macro of flower head; Weston Cemetery Prairie Nature Preserve, McLean County, Illinois
flower head in longitudinal section; same locality
fruit heads; units on ruler = 1 mm
achenes; units on ruler = 1 mm
another image of achenes
Click here for a distribution map in Illinois from the Illinois Plant Information Network

Helianthus mollis (downy or ashy sunflower) [Asteraceae or Compositae, Sunflower Family]

habit of plant in flower; Gensburg-Markham Prairie Nature Preserve, Cook County, Illinois
leaves; Prospect Cemetery Prairie Nature Preserve, Ford County, Illinois
flower head; Gensburg-Markham Prairie Nature Preserve, Cook County, Illinois
closeup of fruit heads; Prospect Cemetery Prairie Nature Preserve, Ford County, Illinois
closeup of fruit heads, above and below; units on ruler = 1 mm
closeup of fruit head from side; units on ruler = 1 mm
achenes; units on ruler = 1 mm
Click here for a distribution map in Illinois from the Illinois Plant Information Network

Helianthus occidentalis (western or fewleaf sunflower) [Asteraceae or Compositae, Sunflower Family]

habitat, sand prairie; sandy area along railroad tracks, Forest City, Mason County, Illinois
habit of plant in flower; Braidwood Dunes and Savanna Nature Preserve, Will County, Illinois
flower head; same locality
Click here for a distribution map in Illinois from the Illinois Plant Information Network

Heliopsis helianthoides (false sunflower or smooth oxeye) [Asteraceae or Compositae, Sunflower Family]

habit of plant in flower; prairie restoration of the Illinois Natural History Survey, Champaign, Illinois
another habit; prairie restoration at the Chicago Botanic Garden, prairie restoration, Cook County, Illinois
macro of flower head in longitudinal section; cultivated at the Illinois Natural History Survey, Champaign, Illinois
macro of ray and disk flowers; same locality
Click here for a distribution map in Illinois from the Illinois Plant Information Network

Hemerocallis fulva (orange daylily) — [Liliaceae, Lily Family] NOT native and a troublesome invaseive species in Illinois prairies

habitat in prairie; Loda Cemetery Prairie Nature Preserve, Iroquois County, Illinois
another habitat view; same locality
habit of plant; same locality
leaves; same locality
flower and flower buds; same locality
one flower; same locality
closeup of flower; same locality
flower in longitudinal section; same locality
closer view of flower in longitudinal section; same locality
Click here for a distribution map in Illinois from the Illinois Plant Information Network

Heterotheca camporum or Chrysopsis (golden aster or yemon yellow false goldenaster) [Asteraceae or Compositae, Sunflower Family]

habit of plant in sand prairie; south of Amboy, Lee County, Illinois
habit of plant in flower; Matanzas Prairie Nature Preserve, Mason County, Illinois
Click here for a distribution map in Illinois from the Illinois Plant Information Network

Hierochloë odorata (sweet or vanilla grass) [Poaceae or Gramineae, Grass Family]

habit of plant ; photograph by John Taft, Illinois Natural History Survey

Hudsonia tomentosa (false heather or woolly beachheather) [Cistaceae, Rockrose Family]

habitat in sand prairie; Savanna Army Depot /Lost Mound area, Jo Daviess County, Illinois
habit of plant; Ayres Sand Prairie Nature Preserve, Carroll County, Illinois
Click here for a distribution map in Illinois from the Illinois Plant Information Network

Hymenoxys acaulis or Tetrameuris herbacea (lakeside daisy or eastern fournerved daisy) [Asteraceae or Compositae, Sunflower Family]

habit of plants in flower; cultivated at the Morton Arboretum, DuPage County, Illinois
flower heads; same locality
Click here for a distribution map in Illinois from the Illinois Plant Information Network

Hypoxis hirsuta or (yellow star grass or goldstar) [Liliaceae, Lily Family or Amaryllidaceae, Amaryllis Family]

habit of plant in flower; Prospect Cemetery Nature Preserve, Ford County, Illinois
flower; Prospect Cemetery Nature Preserve, Ford County, Illinois
closeup of flower; Prospect Cemetery Nature Preserve, Ford County, Illinois
macro of flower
flower in longitudinal section
Click here for a distribution map in Illinois from the Illinois Plant Information Network

Alphabetical by Genus:
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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Created November 1997; updated 25 October 2004