Arizona State University Vascular Plant Herbarium (ASU:Plants)
ASU0004667
cb3f31da-e25e-479b-b278-b1dba8c397df
172830
Ambrosia acanthicarpa Hook.
Asteraceae
Richard S. Felger
85-763
1985-06-25
Mexico, Sonora, Puerto Penasco, N edge of town, junction MEX Hwy 8 and road to Bahia de la Cholla.
31.335994 -113.617124 +-2000m.
12 meters (39ft)
Roadside, sand soil.
Abundant (also abundant along roadsides around town and to at least 5 km N of town). Annual with stout tap root, bushy and dense, mostly 0.5-1 m tall, some taller, herbage gray-green. Only two plants in flower, others actively growing but not in flower.