Helianthus petiolaris - Wikipedia
Helianthus petiolaris is a North American plant species in the family Asteraceae, commonly known as the prairie sunflower [2] or lesser sunflower. [3] Naturalist and botanist Thomas Nuttall was the first to describe the prairie sunflower in 1821.
Helianthus petiolaris (Prairie Sunflower) - Minnesota Wildflowers
Prairie Sunflower is distinguished from other MN native sunflowers by its alternate, mostly toothless, often triangular leaves and flowers with a brown, larger than average center disk. The plant most closely resembles Common Sunflower (Helianthus annuus) but in miniature.
Helianthus Petiolaris, Prairie Sunflower - American Southwest
Brown-centered yellow flower of prairie sunflower (helianthus petiolaris) in Angel Peak Scenic Area, New Mexico
Prairie Sunflower, Beautiful Abundant Blooms - Eat The Planet
Prairie sunflower is a taprooted annual, blooming between June and September. The flowers are hermaphrodites, containing both male and female parts, and closely resemble those of the Common Sunflower. The flowers are 1 ½ to 3 inches across, with 12 to 25 yellow petals.
Prairie Sunflower (Helianthus pauciflorus) - Illinois Wildflowers
Prairie Sunflower is more xerophytic than many other sunflowers in Illinois, favoring dry upland areas in full sunlight. Another scientific name for this plant is Helianthus rigidus , but it is considered obsolete.
Helianthus petiolaris — prairie sunflower - Go Botany
Prairie sunflower is native to Western North America, but like other species in this genus, it has moved far beyond its original distribution. This species was first named by the famous naturalist, botanist, and ornithologist, Thomas Nuttall (1786-1859).
Prairie Sunflower - Arches National Park (U.S. National Park Service)
Flowers: yellow ray flowers; disk 0.4” to 1” (10 to 25 mm) wide; disk corolla lobes purplish; perfect; fertile; flower head appears to be a single flower, but is composed of several flowers (a composite) Pollinators: bees and flies. Fruits: achene – 1 seeded with hard shell
prairie sunflower (Helianthus petiolaris) - iNaturalist
Helianthus petiolaris is a North American plant species in the sunflower family, commonly known as the prairie sunflower or lesser sunflower. Naturalist and botanist Thomas Nuttall was the first to describe the prairie sunflower in 1821.
Helianthus Petiolaris - Prairie Sunflower | Plants, Gardening ...
Helianthus petiolaris, commonly referred to as the prairie sunflower, thrives in full sun and well-drained soil. It is a drought-tolerant plant that is ideal for xeriscaping and low-water gardens. The plant can be started from seeds or transplanted from an existing plant.
Plains Sunflower (Helianthus petiolaris) - Illinois Wildflowers
The seeds of Plains Sunflower are also smaller in size than those of the Annual Sunflower, and mottled. When these two species grow together, hybrid plants with mixed characteristics can occur. Other common names of Helianthus petiolaris are Prairie Sunflower, Lesser Sunflower, Petioled Sunflower, and Kansas Sunflower.