| 词条 | Bidens leptocephala |
| 释义 |
|image = |status = |status_system = |status_ref = |genus = Bidens |species = leptocephala |authority = Sherff }}Bidens leptocephala, the fewflower beggarticks,[1] is a North American species of flowering plant in the daisy family. It is native to the southwestern United States (Arizona, New Mexico, western Texas)[2] and northern Mexico (Chihuahua, Sonora, Baja California, Baja California Sur).[3][4]Bidens leptocephala is an annual herb up to 50 cm (20 inches) tall. Flower heads are sometimes borne one at a time, sometimes in groups of 2 or 3, each head yellow or white with disc florets and sometimes with ray florets. The species usually grows on streambanks.[3][5] References1. ^{{PLANTS|id=BILE|taxon=Bidens leptocephala|accessdate=29 May 2015}} 2. ^Biota of North America Program 2014 county distribution map 3. ^1 Flora of North America, Bidens leptocephala Sherff, Bot. Gaz. 64: 22. 1917 4. ^SEINet, Southwestern Biodiversity, Arizona Chapter, Bidens leptocephala Sherff description, photos, distribution map 5. ^[https://www.biodiversitylibrary.org/page/35191859#page/37/mode/1up Sherff, Earl Edward 1917. Botanical Gazette 64(1): 22–23. ] description in Latin, commentary in English External links
4 : Bidens|Flora of the Southwestern United States|Flora of Mexico|Plants described in 1917 |
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