Helenium quadridentatum is a North American plant in the family Asteraceae, commonly known as longdisk sneezeweed. It is found in the southeastern and...
3 KB (283 words) - 04:13, 8 May 2024
Small - central Mississippi Valley Helenium puberulum DC. - Baja California, California, Oregon Helenium quadridentatum Labill. - southeastern United States...
12 KB (887 words) - 16:28, 10 May 2025
Harnackia bisecta* Urb. Hebeclinium macrophyllum (L.) DC. Helenium quadridentatum Labill. Helenium scaposum* Britton Heptanthus* Griseb. Heptanthus brevipes*...
378 KB (32,646 words) - 14:55, 11 July 2025