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| Scientific Name | Rudbeckia hirta | USDA PLANTS Symbol | RUHI2 |
| Common Name | Brown-eyed Susan, Black-eyed Susan | ITIS Taxonomic Serial No. | 36765 |
| Family | Asteraceae (Sunflower) | SEINet Reference |
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| Description | Habitat: Various, usually sandy soils of fields, pastures, open areas. Plant: Erect annual or short-lived perennial, 12 to 40 inches tall, often in showy colonies. Leaves: Basal and stem (alternate), ovate to oblanceolate (not lobed), 4 to 7 inches long covered with coarse hairs. Inflorescence: Large composite flowers 2-1/2 inches across with 8 to 16 yellow rays around often-flattened dome-shaped dark brown or black disk. Ray flowers may have darker spots near bases. Bloom Period: April to August or later. References: "Wildflowers of Texas" by Geyata Ajilvsgi and "Wildflowers of the Texas Hill Country" by Marshall Enquist. |
BONAP Distribution Map |
Texas Status: Native |
| Scientific Name | Rudbeckia maxima | USDA PLANTS Symbol | RUMA3 |
| Common Name | Giant Coneflower, Great Coneflower | ITIS Taxonomic Serial No. | 36776 |
| Family | Asteraceae (Sunflower) | SEINet Reference |
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| Description | Habitat: Low, moist ares in ditches, fencerows, edges of woodlands. Native to East Texas. Plant: Very tall (3 to 4 feet or more), erect, smooth, leafy perennial, often in colonies. Leaves: Large bluish-green leaves, basal and stem (alternate, clasping), elliptic to obovate, up to 8 inches long. Inflorescence: Large composite flowers 5 inches across with 10 to 20 yellow rays around central structure up to 3 inches tall comprising hundreds of dark brown disk florets. Bloom Period: May to June. References: "Wildflowers of Texas" by Geyata Ajilvsgi. Note: These imnages are from the Wildflower Center in Austin; R. maxima is not native to the area. |
BONAP Distribution Map |
Texas Status: Native |
